/usr/share/pyshared/scrapy/utils/py26.py is in python-scrapy 0.14.4-1.
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 | """
This module provides functions added in Python 2.6, which weren't yet available
in Python 2.5. The Python 2.6 function is used when available.
"""
import sys
import os
import fnmatch
import pkgutil
from shutil import copy2, copystat
__all__ = ['cpu_count', 'copytree', 'ignore_patterns']
try:
import multiprocessing
cpu_count = multiprocessing.cpu_count
except ImportError:
def cpu_count():
'''
Returns the number of CPUs in the system
'''
if sys.platform == 'win32':
try:
num = int(os.environ['NUMBER_OF_PROCESSORS'])
except (ValueError, KeyError):
num = 0
elif 'bsd' in sys.platform or sys.platform == 'darwin':
try:
num = int(os.popen('sysctl -n hw.ncpu').read())
except ValueError:
num = 0
else:
try:
num = os.sysconf('SC_NPROCESSORS_ONLN')
except (ValueError, OSError, AttributeError):
num = 0
if num >= 1:
return num
else:
raise NotImplementedError('cannot determine number of cpus')
if sys.version_info >= (2, 6):
from shutil import copytree, ignore_patterns
else:
try:
WindowsError
except NameError:
WindowsError = None
class Error(EnvironmentError):
pass
def ignore_patterns(*patterns):
def _ignore_patterns(path, names):
ignored_names = []
for pattern in patterns:
ignored_names.extend(fnmatch.filter(names, pattern))
return set(ignored_names)
return _ignore_patterns
def copytree(src, dst, symlinks=False, ignore=None):
names = os.listdir(src)
if ignore is not None:
ignored_names = ignore(src, names)
else:
ignored_names = set()
os.makedirs(dst)
errors = []
for name in names:
if name in ignored_names:
continue
srcname = os.path.join(src, name)
dstname = os.path.join(dst, name)
try:
if symlinks and os.path.islink(srcname):
linkto = os.readlink(srcname)
os.symlink(linkto, dstname)
elif os.path.isdir(srcname):
copytree(srcname, dstname, symlinks, ignore)
else:
copy2(srcname, dstname)
# XXX What about devices, sockets etc.?
except (IOError, os.error), why:
errors.append((srcname, dstname, str(why)))
# catch the Error from the recursive copytree so that we can
# continue with other files
except Error, err:
errors.extend(err.args[0])
try:
copystat(src, dst)
except OSError, why:
if WindowsError is not None and isinstance(why, WindowsError):
# Copying file access times may fail on Windows
pass
else:
errors.extend((src, dst, str(why)))
if errors:
raise Error, errors
try:
import json
except ImportError:
import simplejson as json
def _get_data(package, resource):
loader = pkgutil.get_loader(package)
if loader is None or not hasattr(loader, 'get_data'):
return None
mod = sys.modules.get(package) or loader.load_module(package)
if mod is None or not hasattr(mod, '__file__'):
return None
# Modify the resource name to be compatible with the loader.get_data
# signature - an os.path format "filename" starting with the dirname of
# the package's __file__
parts = resource.split('/')
parts.insert(0, os.path.dirname(mod.__file__))
resource_name = os.path.join(*parts)
return loader.get_data(resource_name)
# pkgutil.get_data() not available in python 2.5
# see http://docs.python.org/release/2.5/lib/module-pkgutil.html
try:
get_data = pkgutil.get_data
except AttributeError:
get_data = _get_data
|