/usr/lib/python3/dist-packages/patsy/__init__.py is in python3-patsy 0.4.1+git34-ga5b54c2-1.
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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 | # This file is part of Patsy
# Copyright (C) 2011-2013 Nathaniel Smith <njs@pobox.com>
# See file LICENSE.txt for license information.
"""patsy is a Python package for describing statistical models and building
design matrices. It is closely inspired by the 'formula' mini-language used in
R and S."""
import sys
from patsy.version import __version__
# Do this first, to make it easy to check for warnings while testing:
import os
if os.environ.get("PATSY_FORCE_NO_WARNINGS"):
import warnings
warnings.filterwarnings("error", module="^patsy")
del warnings
del os
import patsy.origin
class PatsyError(Exception):
"""This is the main error type raised by Patsy functions.
In addition to the usual Python exception features, you can pass a second
argument to this function specifying the origin of the error; this is
included in any error message, and used to help the user locate errors
arising from malformed formulas. This second argument should be an
:class:`Origin` object, or else an arbitrary object with a ``.origin``
attribute. (If it is neither of these things, then it will simply be
ignored.)
For ordinary display to the user with default formatting, use
``str(exc)``. If you want to do something cleverer, you can use the
``.message`` and ``.origin`` attributes directly. (The latter may be
None.)
"""
def __init__(self, message, origin=None):
Exception.__init__(self, message)
self.message = message
self.origin = None
self.set_origin(origin)
def __str__(self):
if self.origin is None:
return self.message
else:
return ("%s\n%s"
% (self.message, self.origin.caretize(indent=4)))
def set_origin(self, origin):
# This is useful to modify an exception to add origin information as
# it "passes by", without losing traceback information. (In Python 3
# we can use the built-in exception wrapping stuff, but it will be
# some time before we can count on that...)
if self.origin is None:
if hasattr(origin, "origin"):
origin = origin.origin
if not isinstance(origin, patsy.origin.Origin):
origin = None
self.origin = origin
__all__ = ["PatsyError"]
# We make a rich API available for explicit use. To see what exactly is
# exported, check each module's __all__, or import this module and look at its
# __all__.
def _reexport(mod):
__all__.extend(mod.__all__)
for var in mod.__all__:
globals()[var] = getattr(mod, var)
# This used to have less copy-paste, but explicit import statements make
# packaging tools like py2exe and py2app happier. Sigh.
import patsy.highlevel
_reexport(patsy.highlevel)
import patsy.build
_reexport(patsy.build)
import patsy.constraint
_reexport(patsy.constraint)
import patsy.contrasts
_reexport(patsy.contrasts)
import patsy.desc
_reexport(patsy.desc)
import patsy.design_info
_reexport(patsy.design_info)
import patsy.eval
_reexport(patsy.eval)
import patsy.origin
_reexport(patsy.origin)
import patsy.state
_reexport(patsy.state)
import patsy.user_util
_reexport(patsy.user_util)
import patsy.missing
_reexport(patsy.missing)
import patsy.splines
_reexport(patsy.splines)
import patsy.mgcv_cubic_splines
_reexport(patsy.mgcv_cubic_splines)
# XX FIXME: we aren't exporting any of the explicit parsing interface
# yet. Need to figure out how to do that.
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