/usr/lib/python2.7/dist-packages/sphinx/ext/autodoc.py is in python-sphinx 1.4.9-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 | # -*- coding: utf-8 -*-
"""
sphinx.ext.autodoc
~~~~~~~~~~~~~~~~~~
Automatically insert docstrings for functions, classes or whole modules into
the doctree, thus avoiding duplication between docstrings and documentation
for those who like elaborate docstrings.
:copyright: Copyright 2007-2016 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
import sys
import inspect
import traceback
from types import FunctionType, BuiltinFunctionType, MethodType
from six import PY2, iterkeys, iteritems, itervalues, text_type, class_types, \
string_types, StringIO
from docutils import nodes
from docutils.utils import assemble_option_dict
from docutils.statemachine import ViewList
import sphinx
from sphinx.util import rpartition, force_decode
from sphinx.locale import _
from sphinx.pycode import ModuleAnalyzer, PycodeError
from sphinx.application import ExtensionError
from sphinx.util.nodes import nested_parse_with_titles
from sphinx.util.compat import Directive
from sphinx.util.inspect import getargspec, isdescriptor, safe_getmembers, \
safe_getattr, object_description, is_builtin_class_method
from sphinx.util.docstrings import prepare_docstring
try:
if sys.version_info >= (3,):
import typing
else:
typing = None
except ImportError:
typing = None
#: extended signature RE: with explicit module name separated by ::
py_ext_sig_re = re.compile(
r'''^ ([\w.]+::)? # explicit module name
([\w.]+\.)? # module and/or class name(s)
(\w+) \s* # thing name
(?: \((.*)\) # optional: arguments
(?:\s* -> \s* (.*))? # return annotation
)? $ # and nothing more
''', re.VERBOSE)
class DefDict(dict):
"""A dict that returns a default on nonexisting keys."""
def __init__(self, default):
dict.__init__(self)
self.default = default
def __getitem__(self, key):
try:
return dict.__getitem__(self, key)
except KeyError:
return self.default
def __bool__(self):
# docutils check "if option_spec"
return True
__nonzero__ = __bool__ # for python2 compatibility
def identity(x):
return x
class Options(dict):
"""A dict/attribute hybrid that returns None on nonexisting keys."""
def __getattr__(self, name):
try:
return self[name.replace('_', '-')]
except KeyError:
return None
class _MockModule(object):
"""Used by autodoc_mock_imports."""
def __init__(self, *args, **kwargs):
pass
def __call__(self, *args, **kwargs):
return _MockModule()
@classmethod
def __getattr__(cls, name):
if name in ('__file__', '__path__'):
return '/dev/null'
elif name[0] == name[0].upper():
# Not very good, we assume Uppercase names are classes...
mocktype = type(name, (), {})
mocktype.__module__ = __name__
return mocktype
else:
return _MockModule()
def mock_import(modname):
if '.' in modname:
pkg, _n, mods = modname.rpartition('.')
mock_import(pkg)
mod = _MockModule()
sys.modules[modname] = mod
return mod
ALL = object()
INSTANCEATTR = object()
def members_option(arg):
"""Used to convert the :members: option to auto directives."""
if arg is None:
return ALL
return [x.strip() for x in arg.split(',')]
def members_set_option(arg):
"""Used to convert the :members: option to auto directives."""
if arg is None:
return ALL
return set(x.strip() for x in arg.split(','))
SUPPRESS = object()
def annotation_option(arg):
if arg is None:
# suppress showing the representation of the object
return SUPPRESS
else:
return arg
def bool_option(arg):
"""Used to convert flag options to auto directives. (Instead of
directives.flag(), which returns None).
"""
return True
class AutodocReporter(object):
"""
A reporter replacement that assigns the correct source name
and line number to a system message, as recorded in a ViewList.
"""
def __init__(self, viewlist, reporter):
self.viewlist = viewlist
self.reporter = reporter
def __getattr__(self, name):
return getattr(self.reporter, name)
def system_message(self, level, message, *children, **kwargs):
if 'line' in kwargs and 'source' not in kwargs:
try:
source, line = self.viewlist.items[kwargs['line']]
except IndexError:
pass
else:
kwargs['source'] = source
kwargs['line'] = line
return self.reporter.system_message(level, message,
*children, **kwargs)
def debug(self, *args, **kwargs):
if self.reporter.debug_flag:
return self.system_message(0, *args, **kwargs)
def info(self, *args, **kwargs):
return self.system_message(1, *args, **kwargs)
def warning(self, *args, **kwargs):
return self.system_message(2, *args, **kwargs)
def error(self, *args, **kwargs):
return self.system_message(3, *args, **kwargs)
def severe(self, *args, **kwargs):
return self.system_message(4, *args, **kwargs)
# Some useful event listener factories for autodoc-process-docstring.
def cut_lines(pre, post=0, what=None):
"""Return a listener that removes the first *pre* and last *post*
lines of every docstring. If *what* is a sequence of strings,
only docstrings of a type in *what* will be processed.
Use like this (e.g. in the ``setup()`` function of :file:`conf.py`)::
from sphinx.ext.autodoc import cut_lines
app.connect('autodoc-process-docstring', cut_lines(4, what=['module']))
This can (and should) be used in place of :confval:`automodule_skip_lines`.
"""
def process(app, what_, name, obj, options, lines):
if what and what_ not in what:
return
del lines[:pre]
if post:
# remove one trailing blank line.
if lines and not lines[-1]:
lines.pop(-1)
del lines[-post:]
# make sure there is a blank line at the end
if lines and lines[-1]:
lines.append('')
return process
def between(marker, what=None, keepempty=False, exclude=False):
"""Return a listener that either keeps, or if *exclude* is True excludes,
lines between lines that match the *marker* regular expression. If no line
matches, the resulting docstring would be empty, so no change will be made
unless *keepempty* is true.
If *what* is a sequence of strings, only docstrings of a type in *what* will
be processed.
"""
marker_re = re.compile(marker)
def process(app, what_, name, obj, options, lines):
if what and what_ not in what:
return
deleted = 0
delete = not exclude
orig_lines = lines[:]
for i, line in enumerate(orig_lines):
if delete:
lines.pop(i - deleted)
deleted += 1
if marker_re.match(line):
delete = not delete
if delete:
lines.pop(i - deleted)
deleted += 1
if not lines and not keepempty:
lines[:] = orig_lines
# make sure there is a blank line at the end
if lines and lines[-1]:
lines.append('')
return process
def format_annotation(annotation):
"""Return formatted representation of a type annotation.
Show qualified names for types and additional details for types from
the ``typing`` module.
Displaying complex types from ``typing`` relies on its private API.
"""
if typing and isinstance(annotation, typing.TypeVar):
return annotation.__name__
if annotation == Ellipsis:
return '...'
if not isinstance(annotation, type):
return repr(annotation)
qualified_name = (annotation.__module__ + '.' + annotation.__qualname__
if annotation else repr(annotation))
if annotation.__module__ == 'builtins':
return annotation.__qualname__
elif typing:
if hasattr(typing, 'GenericMeta') and \
isinstance(annotation, typing.GenericMeta):
# In Python 3.5.2+, all arguments are stored in __args__,
# whereas __parameters__ only contains generic parameters.
#
# Prior to Python 3.5.2, __args__ is not available, and all
# arguments are in __parameters__.
params = None
if hasattr(annotation, '__args__'):
if annotation.__args__ is None or len(annotation.__args__) <= 2:
params = annotation.__args__
else: # typing.Callable
args = ', '.join(format_annotation(a) for a in annotation.__args__[:-1])
result = format_annotation(annotation.__args__[-1])
return '%s[[%s], %s]' % (qualified_name, args, result)
elif hasattr(annotation, '__parameters__'):
params = annotation.__parameters__
if params is not None:
param_str = ', '.join(format_annotation(p) for p in params)
return '%s[%s]' % (qualified_name, param_str)
elif hasattr(typing, 'UnionMeta') and \
isinstance(annotation, typing.UnionMeta) and \
hasattr(annotation, '__union_params__'):
params = annotation.__union_params__
if params is not None:
param_str = ', '.join(format_annotation(p) for p in params)
return '%s[%s]' % (qualified_name, param_str)
elif hasattr(typing, 'CallableMeta') and \
isinstance(annotation, typing.CallableMeta) and \
hasattr(annotation, '__args__') and \
hasattr(annotation, '__result__'):
args = annotation.__args__
if args is None:
return qualified_name
elif args is Ellipsis:
args_str = '...'
else:
formatted_args = (format_annotation(a) for a in args)
args_str = '[%s]' % ', '.join(formatted_args)
return '%s[%s, %s]' % (qualified_name,
args_str,
format_annotation(annotation.__result__))
elif hasattr(typing, 'TupleMeta') and \
isinstance(annotation, typing.TupleMeta) and \
hasattr(annotation, '__tuple_params__') and \
hasattr(annotation, '__tuple_use_ellipsis__'):
params = annotation.__tuple_params__
if params is not None:
param_strings = [format_annotation(p) for p in params]
if annotation.__tuple_use_ellipsis__:
param_strings.append('...')
return '%s[%s]' % (qualified_name,
', '.join(param_strings))
return qualified_name
def formatargspec(function, args, varargs=None, varkw=None, defaults=None,
kwonlyargs=(), kwonlydefaults={}, annotations={}):
"""Return a string representation of an ``inspect.FullArgSpec`` tuple.
An enhanced version of ``inspect.formatargspec()`` that handles typing
annotations better.
"""
def format_arg_with_annotation(name):
if name in annotations:
return '%s: %s' % (name, format_annotation(get_annotation(name)))
return name
def get_annotation(name):
value = annotations[name]
if isinstance(value, string_types):
return introspected_hints.get(name, value)
else:
return value
introspected_hints = (typing.get_type_hints(function)
if typing and hasattr(function, '__code__') else {})
fd = StringIO()
fd.write('(')
formatted = []
defaults_start = len(args) - len(defaults) if defaults else len(args)
for i, arg in enumerate(args):
arg_fd = StringIO()
arg_fd.write(format_arg_with_annotation(arg))
if defaults and i >= defaults_start:
arg_fd.write(' = ' if arg in annotations else '=')
arg_fd.write(object_description(defaults[i - defaults_start]))
formatted.append(arg_fd.getvalue())
if varargs:
formatted.append('*' + format_arg_with_annotation(varargs))
if kwonlyargs:
formatted.append('*')
for kwarg in kwonlyargs:
arg_fd = StringIO()
arg_fd.write(format_arg_with_annotation(kwarg))
if kwonlydefaults and kwarg in kwonlydefaults:
arg_fd.write(' = ' if kwarg in annotations else '=')
arg_fd.write(object_description(kwonlydefaults[kwarg]))
formatted.append(arg_fd.getvalue())
if varkw:
formatted.append('**' + format_arg_with_annotation(varkw))
fd.write(', '.join(formatted))
fd.write(')')
if 'return' in annotations:
fd.write(' -> ')
fd.write(format_annotation(get_annotation('return')))
return fd.getvalue()
class Documenter(object):
"""
A Documenter knows how to autodocument a single object type. When
registered with the AutoDirective, it will be used to document objects
of that type when needed by autodoc.
Its *objtype* attribute selects what auto directive it is assigned to
(the directive name is 'auto' + objtype), and what directive it generates
by default, though that can be overridden by an attribute called
*directivetype*.
A Documenter has an *option_spec* that works like a docutils directive's;
in fact, it will be used to parse an auto directive's options that matches
the documenter.
"""
#: name by which the directive is called (auto...) and the default
#: generated directive name
objtype = 'object'
#: indentation by which to indent the directive content
content_indent = u' '
#: priority if multiple documenters return True from can_document_member
priority = 0
#: order if autodoc_member_order is set to 'groupwise'
member_order = 0
#: true if the generated content may contain titles
titles_allowed = False
option_spec = {'noindex': bool_option}
@staticmethod
def get_attr(obj, name, *defargs):
"""getattr() override for types such as Zope interfaces."""
for typ, func in iteritems(AutoDirective._special_attrgetters):
if isinstance(obj, typ):
return func(obj, name, *defargs)
return safe_getattr(obj, name, *defargs)
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
"""Called to see if a member can be documented by this documenter."""
raise NotImplementedError('must be implemented in subclasses')
def __init__(self, directive, name, indent=u''):
self.directive = directive
self.env = directive.env
self.options = directive.genopt
self.name = name
self.indent = indent
# the module and object path within the module, and the fully
# qualified name (all set after resolve_name succeeds)
self.modname = None
self.module = None
self.objpath = None
self.fullname = None
# extra signature items (arguments and return annotation,
# also set after resolve_name succeeds)
self.args = None
self.retann = None
# the object to document (set after import_object succeeds)
self.object = None
self.object_name = None
# the parent/owner of the object to document
self.parent = None
# the module analyzer to get at attribute docs, or None
self.analyzer = None
def add_line(self, line, source, *lineno):
"""Append one line of generated reST to the output."""
self.directive.result.append(self.indent + line, source, *lineno)
def resolve_name(self, modname, parents, path, base):
"""Resolve the module and name of the object to document given by the
arguments and the current module/class.
Must return a pair of the module name and a chain of attributes; for
example, it would return ``('zipfile', ['ZipFile', 'open'])`` for the
``zipfile.ZipFile.open`` method.
"""
raise NotImplementedError('must be implemented in subclasses')
def parse_name(self):
"""Determine what module to import and what attribute to document.
Returns True and sets *self.modname*, *self.objpath*, *self.fullname*,
*self.args* and *self.retann* if parsing and resolving was successful.
"""
# first, parse the definition -- auto directives for classes and
# functions can contain a signature which is then used instead of
# an autogenerated one
try:
explicit_modname, path, base, args, retann = \
py_ext_sig_re.match(self.name).groups()
except AttributeError:
self.directive.warn('invalid signature for auto%s (%r)' %
(self.objtype, self.name))
return False
# support explicit module and class name separation via ::
if explicit_modname is not None:
modname = explicit_modname[:-2]
parents = path and path.rstrip('.').split('.') or []
else:
modname = None
parents = []
self.modname, self.objpath = \
self.resolve_name(modname, parents, path, base)
if not self.modname:
return False
self.args = args
self.retann = retann
self.fullname = (self.modname or '') + \
(self.objpath and '.' + '.'.join(self.objpath) or '')
return True
def import_object(self):
"""Import the object given by *self.modname* and *self.objpath* and set
it as *self.object*.
Returns True if successful, False if an error occurred.
"""
dbg = self.env.app.debug
if self.objpath:
dbg('[autodoc] from %s import %s',
self.modname, '.'.join(self.objpath))
try:
dbg('[autodoc] import %s', self.modname)
for modname in self.env.config.autodoc_mock_imports:
dbg('[autodoc] adding a mock module %s!', self.modname)
mock_import(modname)
__import__(self.modname)
parent = None
obj = self.module = sys.modules[self.modname]
dbg('[autodoc] => %r', obj)
for part in self.objpath:
parent = obj
dbg('[autodoc] getattr(_, %r)', part)
obj = self.get_attr(obj, part)
dbg('[autodoc] => %r', obj)
self.object_name = part
self.parent = parent
self.object = obj
return True
# this used to only catch SyntaxError, ImportError and AttributeError,
# but importing modules with side effects can raise all kinds of errors
except (Exception, SystemExit) as e:
if self.objpath:
errmsg = 'autodoc: failed to import %s %r from module %r' % \
(self.objtype, '.'.join(self.objpath), self.modname)
else:
errmsg = 'autodoc: failed to import %s %r' % \
(self.objtype, self.fullname)
if isinstance(e, SystemExit):
errmsg += ('; the module executes module level statement ' +
'and it might call sys.exit().')
else:
errmsg += '; the following exception was raised:\n%s' % \
traceback.format_exc()
if PY2:
errmsg = errmsg.decode('utf-8')
dbg(errmsg)
self.directive.warn(errmsg)
self.env.note_reread()
return False
def get_real_modname(self):
"""Get the real module name of an object to document.
It can differ from the name of the module through which the object was
imported.
"""
return self.get_attr(self.object, '__module__', None) or self.modname
def check_module(self):
"""Check if *self.object* is really defined in the module given by
*self.modname*.
"""
if self.options.imported_members:
return True
modname = self.get_attr(self.object, '__module__', None)
if modname and modname != self.modname:
return False
return True
def format_args(self):
"""Format the argument signature of *self.object*.
Should return None if the object does not have a signature.
"""
return None
def format_name(self):
"""Format the name of *self.object*.
This normally should be something that can be parsed by the generated
directive, but doesn't need to be (Sphinx will display it unparsed
then).
"""
# normally the name doesn't contain the module (except for module
# directives of course)
return '.'.join(self.objpath) or self.modname
def format_signature(self):
"""Format the signature (arguments and return annotation) of the object.
Let the user process it via the ``autodoc-process-signature`` event.
"""
if self.args is not None:
# signature given explicitly
args = "(%s)" % self.args
else:
# try to introspect the signature
try:
args = self.format_args()
except Exception as err:
self.directive.warn('error while formatting arguments for '
'%s: %s' % (self.fullname, err))
args = None
retann = self.retann
result = self.env.app.emit_firstresult(
'autodoc-process-signature', self.objtype, self.fullname,
self.object, self.options, args, retann)
if result:
args, retann = result
if args is not None:
return args + (retann and (' -> %s' % retann) or '')
else:
return ''
def add_directive_header(self, sig):
"""Add the directive header and options to the generated content."""
domain = getattr(self, 'domain', 'py')
directive = getattr(self, 'directivetype', self.objtype)
name = self.format_name()
sourcename = self.get_sourcename()
self.add_line(u'.. %s:%s:: %s%s' % (domain, directive, name, sig),
sourcename)
if self.options.noindex:
self.add_line(u' :noindex:', sourcename)
if self.objpath:
# Be explicit about the module, this is necessary since .. class::
# etc. don't support a prepended module name
self.add_line(u' :module: %s' % self.modname, sourcename)
def get_doc(self, encoding=None, ignore=1):
"""Decode and return lines of the docstring(s) for the object."""
docstring = self.get_attr(self.object, '__doc__', None)
# make sure we have Unicode docstrings, then sanitize and split
# into lines
if isinstance(docstring, text_type):
return [prepare_docstring(docstring, ignore)]
elif isinstance(docstring, str): # this will not trigger on Py3
return [prepare_docstring(force_decode(docstring, encoding),
ignore)]
# ... else it is something strange, let's ignore it
return []
def process_doc(self, docstrings):
"""Let the user process the docstrings before adding them."""
for docstringlines in docstrings:
if self.env.app:
# let extensions preprocess docstrings
self.env.app.emit('autodoc-process-docstring',
self.objtype, self.fullname, self.object,
self.options, docstringlines)
for line in docstringlines:
yield line
def get_sourcename(self):
if self.analyzer:
# prevent encoding errors when the file name is non-ASCII
if not isinstance(self.analyzer.srcname, text_type):
filename = text_type(self.analyzer.srcname,
sys.getfilesystemencoding(), 'replace')
else:
filename = self.analyzer.srcname
return u'%s:docstring of %s' % (filename, self.fullname)
return u'docstring of %s' % self.fullname
def add_content(self, more_content, no_docstring=False):
"""Add content from docstrings, attribute documentation and user."""
# set sourcename and add content from attribute documentation
sourcename = self.get_sourcename()
if self.analyzer:
attr_docs = self.analyzer.find_attr_docs()
if self.objpath:
key = ('.'.join(self.objpath[:-1]), self.objpath[-1])
if key in attr_docs:
no_docstring = True
docstrings = [attr_docs[key]]
for i, line in enumerate(self.process_doc(docstrings)):
self.add_line(line, sourcename, i)
# add content from docstrings
if not no_docstring:
encoding = self.analyzer and self.analyzer.encoding
docstrings = self.get_doc(encoding)
if not docstrings:
# append at least a dummy docstring, so that the event
# autodoc-process-docstring is fired and can add some
# content if desired
docstrings.append([])
for i, line in enumerate(self.process_doc(docstrings)):
self.add_line(line, sourcename, i)
# add additional content (e.g. from document), if present
if more_content:
for line, src in zip(more_content.data, more_content.items):
self.add_line(line, src[0], src[1])
def get_object_members(self, want_all):
"""Return `(members_check_module, members)` where `members` is a
list of `(membername, member)` pairs of the members of *self.object*.
If *want_all* is True, return all members. Else, only return those
members given by *self.options.members* (which may also be none).
"""
analyzed_member_names = set()
if self.analyzer:
attr_docs = self.analyzer.find_attr_docs()
namespace = '.'.join(self.objpath)
for item in iteritems(attr_docs):
if item[0][0] == namespace:
analyzed_member_names.add(item[0][1])
if not want_all:
if not self.options.members:
return False, []
# specific members given
members = []
for mname in self.options.members:
try:
members.append((mname, self.get_attr(self.object, mname)))
except AttributeError:
if mname not in analyzed_member_names:
self.directive.warn('missing attribute %s in object %s'
% (mname, self.fullname))
elif self.options.inherited_members:
# safe_getmembers() uses dir() which pulls in members from all
# base classes
members = safe_getmembers(self.object, attr_getter=self.get_attr)
else:
# __dict__ contains only the members directly defined in
# the class (but get them via getattr anyway, to e.g. get
# unbound method objects instead of function objects);
# using list(iterkeys()) because apparently there are objects for which
# __dict__ changes while getting attributes
try:
obj_dict = self.get_attr(self.object, '__dict__')
except AttributeError:
members = []
else:
members = [(mname, self.get_attr(self.object, mname, None))
for mname in list(iterkeys(obj_dict))]
membernames = set(m[0] for m in members)
# add instance attributes from the analyzer
for aname in analyzed_member_names:
if aname not in membernames and \
(want_all or aname in self.options.members):
members.append((aname, INSTANCEATTR))
return False, sorted(members)
def filter_members(self, members, want_all):
"""Filter the given member list.
Members are skipped if
- they are private (except if given explicitly or the private-members
option is set)
- they are special methods (except if given explicitly or the
special-members option is set)
- they are undocumented (except if the undoc-members option is set)
The user can override the skipping decision by connecting to the
``autodoc-skip-member`` event.
"""
ret = []
# search for members in source code too
namespace = '.'.join(self.objpath) # will be empty for modules
if self.analyzer:
attr_docs = self.analyzer.find_attr_docs()
else:
attr_docs = {}
# process members and determine which to skip
for (membername, member) in members:
# if isattr is True, the member is documented as an attribute
isattr = False
doc = self.get_attr(member, '__doc__', None)
# if the member __doc__ is the same as self's __doc__, it's just
# inherited and therefore not the member's doc
cls = self.get_attr(member, '__class__', None)
if cls:
cls_doc = self.get_attr(cls, '__doc__', None)
if cls_doc == doc:
doc = None
has_doc = bool(doc)
keep = False
if want_all and membername.startswith('__') and \
membername.endswith('__') and len(membername) > 4:
# special __methods__
if self.options.special_members is ALL and \
membername != '__doc__':
keep = has_doc or self.options.undoc_members
elif self.options.special_members and \
self.options.special_members is not ALL and \
membername in self.options.special_members:
keep = has_doc or self.options.undoc_members
elif want_all and membername.startswith('_'):
# ignore members whose name starts with _ by default
keep = self.options.private_members and \
(has_doc or self.options.undoc_members)
elif (namespace, membername) in attr_docs:
# keep documented attributes
keep = True
isattr = True
else:
# ignore undocumented members if :undoc-members: is not given
keep = has_doc or self.options.undoc_members
# give the user a chance to decide whether this member
# should be skipped
if self.env.app:
# let extensions preprocess docstrings
skip_user = self.env.app.emit_firstresult(
'autodoc-skip-member', self.objtype, membername, member,
not keep, self.options)
if skip_user is not None:
keep = not skip_user
if keep:
ret.append((membername, member, isattr))
return ret
def document_members(self, all_members=False):
"""Generate reST for member documentation.
If *all_members* is True, do all members, else those given by
*self.options.members*.
"""
# set current namespace for finding members
self.env.temp_data['autodoc:module'] = self.modname
if self.objpath:
self.env.temp_data['autodoc:class'] = self.objpath[0]
want_all = all_members or self.options.inherited_members or \
self.options.members is ALL
# find out which members are documentable
members_check_module, members = self.get_object_members(want_all)
# remove members given by exclude-members
if self.options.exclude_members:
members = [(membername, member) for (membername, member) in members
if membername not in self.options.exclude_members]
# document non-skipped members
memberdocumenters = []
for (mname, member, isattr) in self.filter_members(members, want_all):
classes = [cls for cls in itervalues(AutoDirective._registry)
if cls.can_document_member(member, mname, isattr, self)]
if not classes:
# don't know how to document this member
continue
# prefer the documenter with the highest priority
classes.sort(key=lambda cls: cls.priority)
# give explicitly separated module name, so that members
# of inner classes can be documented
full_mname = self.modname + '::' + \
'.'.join(self.objpath + [mname])
documenter = classes[-1](self.directive, full_mname, self.indent)
memberdocumenters.append((documenter, isattr))
member_order = self.options.member_order or \
self.env.config.autodoc_member_order
if member_order == 'groupwise':
# sort by group; relies on stable sort to keep items in the
# same group sorted alphabetically
memberdocumenters.sort(key=lambda e: e[0].member_order)
elif member_order == 'bysource' and self.analyzer:
# sort by source order, by virtue of the module analyzer
tagorder = self.analyzer.tagorder
def keyfunc(entry):
fullname = entry[0].name.split('::')[1]
return tagorder.get(fullname, len(tagorder))
memberdocumenters.sort(key=keyfunc)
for documenter, isattr in memberdocumenters:
documenter.generate(
all_members=True, real_modname=self.real_modname,
check_module=members_check_module and not isattr)
# reset current objects
self.env.temp_data['autodoc:module'] = None
self.env.temp_data['autodoc:class'] = None
def generate(self, more_content=None, real_modname=None,
check_module=False, all_members=False):
"""Generate reST for the object given by *self.name*, and possibly for
its members.
If *more_content* is given, include that content. If *real_modname* is
given, use that module name to find attribute docs. If *check_module* is
True, only generate if the object is defined in the module name it is
imported from. If *all_members* is True, document all members.
"""
if not self.parse_name():
# need a module to import
self.directive.warn(
'don\'t know which module to import for autodocumenting '
'%r (try placing a "module" or "currentmodule" directive '
'in the document, or giving an explicit module name)'
% self.name)
return
# now, import the module and get object to document
if not self.import_object():
return
# If there is no real module defined, figure out which to use.
# The real module is used in the module analyzer to look up the module
# where the attribute documentation would actually be found in.
# This is used for situations where you have a module that collects the
# functions and classes of internal submodules.
self.real_modname = real_modname or self.get_real_modname()
# try to also get a source code analyzer for attribute docs
try:
self.analyzer = ModuleAnalyzer.for_module(self.real_modname)
# parse right now, to get PycodeErrors on parsing (results will
# be cached anyway)
self.analyzer.find_attr_docs()
except PycodeError as err:
self.env.app.debug('[autodoc] module analyzer failed: %s', err)
# no source file -- e.g. for builtin and C modules
self.analyzer = None
# at least add the module.__file__ as a dependency
if hasattr(self.module, '__file__') and self.module.__file__:
self.directive.filename_set.add(self.module.__file__)
else:
self.directive.filename_set.add(self.analyzer.srcname)
# check __module__ of object (for members not given explicitly)
if check_module:
if not self.check_module():
return
sourcename = self.get_sourcename()
# make sure that the result starts with an empty line. This is
# necessary for some situations where another directive preprocesses
# reST and no starting newline is present
self.add_line(u'', sourcename)
# format the object's signature, if any
sig = self.format_signature()
# generate the directive header and options, if applicable
self.add_directive_header(sig)
self.add_line(u'', sourcename)
# e.g. the module directive doesn't have content
self.indent += self.content_indent
# add all content (from docstrings, attribute docs etc.)
self.add_content(more_content)
# document members, if possible
self.document_members(all_members)
class ModuleDocumenter(Documenter):
"""
Specialized Documenter subclass for modules.
"""
objtype = 'module'
content_indent = u''
titles_allowed = True
option_spec = {
'members': members_option, 'undoc-members': bool_option,
'noindex': bool_option, 'inherited-members': bool_option,
'show-inheritance': bool_option, 'synopsis': identity,
'platform': identity, 'deprecated': bool_option,
'member-order': identity, 'exclude-members': members_set_option,
'private-members': bool_option, 'special-members': members_option,
'imported-members': bool_option,
}
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
# don't document submodules automatically
return False
def resolve_name(self, modname, parents, path, base):
if modname is not None:
self.directive.warn('"::" in automodule name doesn\'t make sense')
return (path or '') + base, []
def parse_name(self):
ret = Documenter.parse_name(self)
if self.args or self.retann:
self.directive.warn('signature arguments or return annotation '
'given for automodule %s' % self.fullname)
return ret
def add_directive_header(self, sig):
Documenter.add_directive_header(self, sig)
sourcename = self.get_sourcename()
# add some module-specific options
if self.options.synopsis:
self.add_line(
u' :synopsis: ' + self.options.synopsis, sourcename)
if self.options.platform:
self.add_line(
u' :platform: ' + self.options.platform, sourcename)
if self.options.deprecated:
self.add_line(u' :deprecated:', sourcename)
def get_object_members(self, want_all):
if want_all:
if not hasattr(self.object, '__all__'):
# for implicit module members, check __module__ to avoid
# documenting imported objects
return True, safe_getmembers(self.object)
else:
memberlist = self.object.__all__
# Sometimes __all__ is broken...
if not isinstance(memberlist, (list, tuple)) or not \
all(isinstance(entry, string_types) for entry in memberlist):
self.directive.warn(
'__all__ should be a list of strings, not %r '
'(in module %s) -- ignoring __all__' %
(memberlist, self.fullname))
# fall back to all members
return True, safe_getmembers(self.object)
else:
memberlist = self.options.members or []
ret = []
for mname in memberlist:
try:
ret.append((mname, safe_getattr(self.object, mname)))
except AttributeError:
self.directive.warn(
'missing attribute mentioned in :members: or __all__: '
'module %s, attribute %s' % (
safe_getattr(self.object, '__name__', '???'), mname))
return False, ret
class ModuleLevelDocumenter(Documenter):
"""
Specialized Documenter subclass for objects on module level (functions,
classes, data/constants).
"""
def resolve_name(self, modname, parents, path, base):
if modname is None:
if path:
modname = path.rstrip('.')
else:
# if documenting a toplevel object without explicit module,
# it can be contained in another auto directive ...
modname = self.env.temp_data.get('autodoc:module')
# ... or in the scope of a module directive
if not modname:
modname = self.env.ref_context.get('py:module')
# ... else, it stays None, which means invalid
return modname, parents + [base]
class ClassLevelDocumenter(Documenter):
"""
Specialized Documenter subclass for objects on class level (methods,
attributes).
"""
def resolve_name(self, modname, parents, path, base):
if modname is None:
if path:
mod_cls = path.rstrip('.')
else:
mod_cls = None
# if documenting a class-level object without path,
# there must be a current class, either from a parent
# auto directive ...
mod_cls = self.env.temp_data.get('autodoc:class')
# ... or from a class directive
if mod_cls is None:
mod_cls = self.env.ref_context.get('py:class')
# ... if still None, there's no way to know
if mod_cls is None:
return None, []
modname, cls = rpartition(mod_cls, '.')
parents = [cls]
# if the module name is still missing, get it like above
if not modname:
modname = self.env.temp_data.get('autodoc:module')
if not modname:
modname = self.env.ref_context.get('py:module')
# ... else, it stays None, which means invalid
return modname, parents + [base]
class DocstringSignatureMixin(object):
"""
Mixin for FunctionDocumenter and MethodDocumenter to provide the
feature of reading the signature from the docstring.
"""
def _find_signature(self, encoding=None):
docstrings = self.get_doc(encoding)
self._new_docstrings = docstrings[:]
result = None
for i, doclines in enumerate(docstrings):
# no lines in docstring, no match
if not doclines:
continue
# match first line of docstring against signature RE
match = py_ext_sig_re.match(doclines[0])
if not match:
continue
exmod, path, base, args, retann = match.groups()
# the base name must match ours
valid_names = [self.objpath[-1]]
if isinstance(self, ClassDocumenter):
valid_names.append('__init__')
if hasattr(self.object, '__mro__'):
valid_names.extend(cls.__name__ for cls in self.object.__mro__)
if base not in valid_names:
continue
# re-prepare docstring to ignore more leading indentation
self._new_docstrings[i] = prepare_docstring('\n'.join(doclines[1:]))
result = args, retann
# don't look any further
break
return result
def get_doc(self, encoding=None, ignore=1):
lines = getattr(self, '_new_docstrings', None)
if lines is not None:
return lines
return Documenter.get_doc(self, encoding, ignore)
def format_signature(self):
if self.args is None and self.env.config.autodoc_docstring_signature:
# only act if a signature is not explicitly given already, and if
# the feature is enabled
result = self._find_signature()
if result is not None:
self.args, self.retann = result
return Documenter.format_signature(self)
class DocstringStripSignatureMixin(DocstringSignatureMixin):
"""
Mixin for AttributeDocumenter to provide the
feature of stripping any function signature from the docstring.
"""
def format_signature(self):
if self.args is None and self.env.config.autodoc_docstring_signature:
# only act if a signature is not explicitly given already, and if
# the feature is enabled
result = self._find_signature()
if result is not None:
# Discarding _args is a only difference with
# DocstringSignatureMixin.format_signature.
# Documenter.format_signature use self.args value to format.
_args, self.retann = result
return Documenter.format_signature(self)
class FunctionDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):
"""
Specialized Documenter subclass for functions.
"""
objtype = 'function'
member_order = 30
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
return isinstance(member, (FunctionType, BuiltinFunctionType))
def format_args(self):
if inspect.isbuiltin(self.object) or \
inspect.ismethoddescriptor(self.object):
# cannot introspect arguments of a C function or method
return None
try:
argspec = getargspec(self.object)
except TypeError:
if (is_builtin_class_method(self.object, '__new__') and
is_builtin_class_method(self.object, '__init__')):
raise TypeError('%r is a builtin class' % self.object)
# if a class should be documented as function (yay duck
# typing) we try to use the constructor signature as function
# signature without the first argument.
try:
argspec = getargspec(self.object.__new__)
except TypeError:
argspec = getargspec(self.object.__init__)
if argspec[0]:
del argspec[0][0]
args = formatargspec(self.object, *argspec)
# escape backslashes for reST
args = args.replace('\\', '\\\\')
return args
def document_members(self, all_members=False):
pass
class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):
"""
Specialized Documenter subclass for classes.
"""
objtype = 'class'
member_order = 20
option_spec = {
'members': members_option, 'undoc-members': bool_option,
'noindex': bool_option, 'inherited-members': bool_option,
'show-inheritance': bool_option, 'member-order': identity,
'exclude-members': members_set_option,
'private-members': bool_option, 'special-members': members_option,
}
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
return isinstance(member, class_types)
def import_object(self):
ret = ModuleLevelDocumenter.import_object(self)
# if the class is documented under another name, document it
# as data/attribute
if ret:
if hasattr(self.object, '__name__'):
self.doc_as_attr = (self.objpath[-1] != self.object.__name__)
else:
self.doc_as_attr = True
return ret
def format_args(self):
# for classes, the relevant signature is the __init__ method's
initmeth = self.get_attr(self.object, '__init__', None)
# classes without __init__ method, default __init__ or
# __init__ written in C?
if initmeth is None or \
is_builtin_class_method(self.object, '__init__') or \
not(inspect.ismethod(initmeth) or inspect.isfunction(initmeth)):
return None
try:
argspec = getargspec(initmeth)
except TypeError:
# still not possible: happens e.g. for old-style classes
# with __init__ in C
return None
if argspec[0] and argspec[0][0] in ('cls', 'self'):
del argspec[0][0]
return formatargspec(initmeth, *argspec)
def format_signature(self):
if self.doc_as_attr:
return ''
return DocstringSignatureMixin.format_signature(self)
def add_directive_header(self, sig):
if self.doc_as_attr:
self.directivetype = 'attribute'
Documenter.add_directive_header(self, sig)
# add inheritance info, if wanted
if not self.doc_as_attr and self.options.show_inheritance:
sourcename = self.get_sourcename()
self.add_line(u'', sourcename)
if hasattr(self.object, '__bases__') and len(self.object.__bases__):
bases = [b.__module__ in ('__builtin__', 'builtins') and
u':class:`%s`' % b.__name__ or
u':class:`%s.%s`' % (b.__module__, b.__name__)
for b in self.object.__bases__]
self.add_line(_(u' Bases: %s') % ', '.join(bases),
sourcename)
def get_doc(self, encoding=None, ignore=1):
lines = getattr(self, '_new_docstrings', None)
if lines is not None:
return lines
content = self.env.config.autoclass_content
docstrings = []
attrdocstring = self.get_attr(self.object, '__doc__', None)
if attrdocstring:
docstrings.append(attrdocstring)
# for classes, what the "docstring" is can be controlled via a
# config value; the default is only the class docstring
if content in ('both', 'init'):
initdocstring = self.get_attr(
self.get_attr(self.object, '__init__', None), '__doc__')
# for new-style classes, no __init__ means default __init__
if (initdocstring is not None and
(initdocstring == object.__init__.__doc__ or # for pypy
initdocstring.strip() == object.__init__.__doc__)): # for !pypy
initdocstring = None
if not initdocstring:
# try __new__
initdocstring = self.get_attr(
self.get_attr(self.object, '__new__', None), '__doc__')
# for new-style classes, no __new__ means default __new__
if (initdocstring is not None and
(initdocstring == object.__new__.__doc__ or # for pypy
initdocstring.strip() == object.__new__.__doc__)): # for !pypy
initdocstring = None
if initdocstring:
if content == 'init':
docstrings = [initdocstring]
else:
docstrings.append(initdocstring)
doc = []
for docstring in docstrings:
if isinstance(docstring, text_type):
doc.append(prepare_docstring(docstring, ignore))
elif isinstance(docstring, str): # this will not trigger on Py3
doc.append(prepare_docstring(force_decode(docstring, encoding),
ignore))
return doc
def add_content(self, more_content, no_docstring=False):
if self.doc_as_attr:
classname = safe_getattr(self.object, '__name__', None)
if classname:
content = ViewList(
[_('alias of :class:`%s`') % classname], source='')
ModuleLevelDocumenter.add_content(self, content,
no_docstring=True)
else:
ModuleLevelDocumenter.add_content(self, more_content)
def document_members(self, all_members=False):
if self.doc_as_attr:
return
ModuleLevelDocumenter.document_members(self, all_members)
class ExceptionDocumenter(ClassDocumenter):
"""
Specialized ClassDocumenter subclass for exceptions.
"""
objtype = 'exception'
member_order = 10
# needs a higher priority than ClassDocumenter
priority = 10
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
return isinstance(member, class_types) and \
issubclass(member, BaseException)
class DataDocumenter(ModuleLevelDocumenter):
"""
Specialized Documenter subclass for data items.
"""
objtype = 'data'
member_order = 40
priority = -10
option_spec = dict(ModuleLevelDocumenter.option_spec)
option_spec["annotation"] = annotation_option
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
return isinstance(parent, ModuleDocumenter) and isattr
def add_directive_header(self, sig):
ModuleLevelDocumenter.add_directive_header(self, sig)
sourcename = self.get_sourcename()
if not self.options.annotation:
try:
objrepr = object_description(self.object)
except ValueError:
pass
else:
self.add_line(u' :annotation: = ' + objrepr, sourcename)
elif self.options.annotation is SUPPRESS:
pass
else:
self.add_line(u' :annotation: %s' % self.options.annotation,
sourcename)
def document_members(self, all_members=False):
pass
class MethodDocumenter(DocstringSignatureMixin, ClassLevelDocumenter):
"""
Specialized Documenter subclass for methods (normal, static and class).
"""
objtype = 'method'
member_order = 50
priority = 1 # must be more than FunctionDocumenter
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
return inspect.isroutine(member) and \
not isinstance(parent, ModuleDocumenter)
def import_object(self):
ret = ClassLevelDocumenter.import_object(self)
if not ret:
return ret
# to distinguish classmethod/staticmethod
obj = self.parent.__dict__.get(self.object_name)
if isinstance(obj, classmethod):
self.directivetype = 'classmethod'
# document class and static members before ordinary ones
self.member_order = self.member_order - 1
elif isinstance(obj, staticmethod):
self.directivetype = 'staticmethod'
# document class and static members before ordinary ones
self.member_order = self.member_order - 1
else:
self.directivetype = 'method'
return ret
def format_args(self):
if inspect.isbuiltin(self.object) or \
inspect.ismethoddescriptor(self.object):
# can never get arguments of a C function or method
return None
argspec = getargspec(self.object)
if argspec[0] and argspec[0][0] in ('cls', 'self'):
del argspec[0][0]
args = formatargspec(self.object, *argspec)
# escape backslashes for reST
args = args.replace('\\', '\\\\')
return args
def document_members(self, all_members=False):
pass
class AttributeDocumenter(DocstringStripSignatureMixin, ClassLevelDocumenter):
"""
Specialized Documenter subclass for attributes.
"""
objtype = 'attribute'
member_order = 60
option_spec = dict(ModuleLevelDocumenter.option_spec)
option_spec["annotation"] = annotation_option
# must be higher than the MethodDocumenter, else it will recognize
# some non-data descriptors as methods
priority = 10
method_types = (FunctionType, BuiltinFunctionType, MethodType)
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
isdatadesc = isdescriptor(member) and not \
isinstance(member, cls.method_types) and not \
type(member).__name__ in ("type", "method_descriptor",
"instancemethod")
return isdatadesc or (not isinstance(parent, ModuleDocumenter) and
not inspect.isroutine(member) and
not isinstance(member, class_types))
def document_members(self, all_members=False):
pass
def import_object(self):
ret = ClassLevelDocumenter.import_object(self)
if isdescriptor(self.object) and \
not isinstance(self.object, self.method_types):
self._datadescriptor = True
else:
# if it's not a data descriptor
self._datadescriptor = False
return ret
def get_real_modname(self):
return self.get_attr(self.parent or self.object, '__module__', None) \
or self.modname
def add_directive_header(self, sig):
ClassLevelDocumenter.add_directive_header(self, sig)
sourcename = self.get_sourcename()
if not self.options.annotation:
if not self._datadescriptor:
try:
objrepr = object_description(self.object)
except ValueError:
pass
else:
self.add_line(u' :annotation: = ' + objrepr, sourcename)
elif self.options.annotation is SUPPRESS:
pass
else:
self.add_line(u' :annotation: %s' % self.options.annotation,
sourcename)
def add_content(self, more_content, no_docstring=False):
if not self._datadescriptor:
# if it's not a data descriptor, its docstring is very probably the
# wrong thing to display
no_docstring = True
ClassLevelDocumenter.add_content(self, more_content, no_docstring)
class InstanceAttributeDocumenter(AttributeDocumenter):
"""
Specialized Documenter subclass for attributes that cannot be imported
because they are instance attributes (e.g. assigned in __init__).
"""
objtype = 'instanceattribute'
directivetype = 'attribute'
member_order = 60
# must be higher than AttributeDocumenter
priority = 11
@classmethod
def can_document_member(cls, member, membername, isattr, parent):
"""This documents only INSTANCEATTR members."""
return isattr and (member is INSTANCEATTR)
def import_object(self):
"""Never import anything."""
# disguise as an attribute
self.objtype = 'attribute'
self._datadescriptor = False
return True
def add_content(self, more_content, no_docstring=False):
"""Never try to get a docstring from the object."""
AttributeDocumenter.add_content(self, more_content, no_docstring=True)
class AutoDirective(Directive):
"""
The AutoDirective class is used for all autodoc directives. It dispatches
most of the work to one of the Documenters, which it selects through its
*_registry* dictionary.
The *_special_attrgetters* attribute is used to customize ``getattr()``
calls that the Documenters make; its entries are of the form ``type:
getattr_function``.
Note: When importing an object, all items along the import chain are
accessed using the descendant's *_special_attrgetters*, thus this
dictionary should include all necessary functions for accessing
attributes of the parents.
"""
# a registry of objtype -> documenter class
_registry = {}
# a registry of type -> getattr function
_special_attrgetters = {}
# flags that can be given in autodoc_default_flags
_default_flags = set([
'members', 'undoc-members', 'inherited-members', 'show-inheritance',
'private-members', 'special-members',
])
# standard docutils directive settings
has_content = True
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = True
# allow any options to be passed; the options are parsed further
# by the selected Documenter
option_spec = DefDict(identity)
def warn(self, msg):
self.warnings.append(self.reporter.warning(msg, line=self.lineno))
def run(self):
self.filename_set = set() # a set of dependent filenames
self.reporter = self.state.document.reporter
self.env = self.state.document.settings.env
self.warnings = []
self.result = ViewList()
try:
source, lineno = self.reporter.get_source_and_line(self.lineno)
except AttributeError:
source = lineno = None
self.env.app.debug('[autodoc] %s:%s: input:\n%s',
source, lineno, self.block_text)
# find out what documenter to call
objtype = self.name[4:]
doc_class = self._registry[objtype]
# add default flags
for flag in self._default_flags:
if flag not in doc_class.option_spec:
continue
negated = self.options.pop('no-' + flag, 'not given') is None
if flag in self.env.config.autodoc_default_flags and \
not negated:
self.options[flag] = None
# process the options with the selected documenter's option_spec
try:
self.genopt = Options(assemble_option_dict(
self.options.items(), doc_class.option_spec))
except (KeyError, ValueError, TypeError) as err:
# an option is either unknown or has a wrong type
msg = self.reporter.error('An option to %s is either unknown or '
'has an invalid value: %s' % (self.name, err),
line=self.lineno)
return [msg]
# generate the output
documenter = doc_class(self, self.arguments[0])
documenter.generate(more_content=self.content)
if not self.result:
return self.warnings
self.env.app.debug2('[autodoc] output:\n%s', '\n'.join(self.result))
# record all filenames as dependencies -- this will at least
# partially make automatic invalidation possible
for fn in self.filename_set:
self.state.document.settings.record_dependencies.add(fn)
# use a custom reporter that correctly assigns lines to source
# filename/description and lineno
old_reporter = self.state.memo.reporter
self.state.memo.reporter = AutodocReporter(self.result,
self.state.memo.reporter)
if documenter.titles_allowed:
node = nodes.section()
# necessary so that the child nodes get the right source/line set
node.document = self.state.document
nested_parse_with_titles(self.state, self.result, node)
else:
node = nodes.paragraph()
node.document = self.state.document
self.state.nested_parse(self.result, 0, node)
self.state.memo.reporter = old_reporter
return self.warnings + node.children
def add_documenter(cls):
"""Register a new Documenter."""
if not issubclass(cls, Documenter):
raise ExtensionError('autodoc documenter %r must be a subclass '
'of Documenter' % cls)
# actually, it should be possible to override Documenters
# if cls.objtype in AutoDirective._registry:
# raise ExtensionError('autodoc documenter for %r is already '
# 'registered' % cls.objtype)
AutoDirective._registry[cls.objtype] = cls
def setup(app):
app.add_autodocumenter(ModuleDocumenter)
app.add_autodocumenter(ClassDocumenter)
app.add_autodocumenter(ExceptionDocumenter)
app.add_autodocumenter(DataDocumenter)
app.add_autodocumenter(FunctionDocumenter)
app.add_autodocumenter(MethodDocumenter)
app.add_autodocumenter(AttributeDocumenter)
app.add_autodocumenter(InstanceAttributeDocumenter)
app.add_config_value('autoclass_content', 'class', True)
app.add_config_value('autodoc_member_order', 'alphabetic', True)
app.add_config_value('autodoc_default_flags', [], True)
app.add_config_value('autodoc_docstring_signature', True, True)
app.add_config_value('autodoc_mock_imports', [], True)
app.add_event('autodoc-process-docstring')
app.add_event('autodoc-process-signature')
app.add_event('autodoc-skip-member')
return {'version': sphinx.__display_version__, 'parallel_read_safe': True}
class testcls:
"""test doc string"""
def __getattr__(self, x):
return x
def __setattr__(self, x, y):
"""Attr setter."""
|