def __init__(
self, search_path=None, platform=get_supported_platform(),
python=PY_MAJOR):
"""Snapshot distributions available on a search path
Any distributions found on `search_path` are added to the environment.
`search_path` should be a sequence of ``sys.path`` items. If not
supplied, ``sys.path`` is used.
`platform` is an optional string specifying the name of the platform
that platform-specific distributions must be compatible with. If
unspecified, it defaults to the current platform. `python` is an
optional string naming the desired version of Python (e.g. ``'3.3'``);
it defaults to the current version.
You may explicitly set `platform` (and/or `python`) to ``None`` if you
wish to map *all* distributions, not just those compatible with the
running platform or Python version.
"""
self._distmap = {}
self.platform = platform
self.python = python
self.scan(search_path)
python类version()的实例源码
def _by_version_descending(names):
"""
Given a list of filenames, return them in descending order
by version number.
>>> names = 'bar', 'foo', 'Python-2.7.10.egg', 'Python-2.7.2.egg'
>>> _by_version_descending(names)
['Python-2.7.10.egg', 'Python-2.7.2.egg', 'foo', 'bar']
>>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.egg'
>>> _by_version_descending(names)
['Setuptools-1.2.3.egg', 'Setuptools-1.2.3b1.egg']
>>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.post1.egg'
>>> _by_version_descending(names)
['Setuptools-1.2.3.post1.egg', 'Setuptools-1.2.3b1.egg']
"""
def _by_version(name):
"""
Parse each component of the filename
"""
name, ext = os.path.splitext(name)
parts = itertools.chain(name.split('-'), [ext])
return [packaging.version.parse(part) for part in parts]
return sorted(names, key=_by_version, reverse=True)
def _warn_legacy_version(self):
LV = packaging.version.LegacyVersion
is_legacy = isinstance(self._parsed_version, LV)
if not is_legacy:
return
# While an empty version is technically a legacy version and
# is not a valid PEP 440 version, it's also unlikely to
# actually come from someone and instead it is more likely that
# it comes from setuptools attempting to parse a filename and
# including it in the list. So for that we'll gate this warning
# on if the version is anything at all or not.
if not self.version:
return
tmpl = textwrap.dedent("""
'{project_name} ({version})' is being parsed as a legacy,
non PEP 440,
version. You may find odd behavior and sort order.
In particular it will be sorted as less than 0.0. It
is recommended to migrate to PEP 440 compatible
versions.
""").strip().replace('\n', ' ')
warnings.warn(tmpl.format(**vars(self)), PEP440Warning)
def _reload_version(self):
"""
Packages installed by distutils (e.g. numpy or scipy),
which uses an old safe_version, and so
their version numbers can get mangled when
converted to filenames (e.g., 1.11.0.dev0+2329eae to
1.11.0.dev0_2329eae). These distributions will not be
parsed properly
downstream by Distribution and safe_version, so
take an extra step and try to get the version number from
the metadata file itself instead of the filename.
"""
md_version = _version_from_file(self._get_metadata(self.PKG_INFO))
if md_version:
self._version = md_version
return self
def __init__(self, requirement_string):
"""DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!"""
try:
super(Requirement, self).__init__(requirement_string)
except packaging.requirements.InvalidRequirement as e:
raise RequirementParseError(str(e))
self.unsafe_name = self.name
project_name = safe_name(self.name)
self.project_name, self.key = project_name, project_name.lower()
self.specs = [
(spec.operator, spec.version) for spec in self.specifier]
self.extras = tuple(map(safe_extra, self.extras))
self.hashCmp = (
self.key,
self.specifier,
frozenset(self.extras),
str(self.marker) if self.marker else None,
)
self.__hash = hash(self.hashCmp)
def split_sections(s):
"""Split a string or iterable thereof into (section, content) pairs
Each ``section`` is a stripped version of the section header ("[section]")
and each ``content`` is a list of stripped lines excluding blank lines and
comment-only lines. If there are any such lines before the first section
header, they're returned in a first ``section`` of ``None``.
"""
section = None
content = []
for line in yield_lines(s):
if line.startswith("["):
if line.endswith("]"):
if section or content:
yield section, content
section = line[1:-1].strip()
content = []
else:
raise ValueError("Invalid section heading", line)
else:
content.append(line)
# wrap up last segment
yield section, content
def data_file_callback(self, *args):
data = args[0]
text = "???????????????? ??????:\n" \
"------------------------\n\n" \
"**????????:** {}\n\n" \
"**????:** {}\n\n" \
"**?????? ?????:** {}\n\n" \
"**???????? ?????:** {}\n\n" \
"**???????? ? zip-?????:** {}\n\n" \
"**tid ??????????:** {}".format(data["screenshot"],
data["file"],
data["version"],
data["description"],
data["zip"],
self.tid_sub_section)
if KDialog:
KDialog(background_color=[1.0, 1.0, 1.0, 1.0]).show(text=text)
else:
print(text)
def event_handler(self, *args):
try:
page_number = int(args[1])
print("Select page %d" % page_number)
return
except (ValueError, IndexError):
pass
instance_id = args[0].id
if instance_id in ["Yes", "No", "Cancel", "Add reply"]:
print("Press button {}".format(instance_id))
return
if int(sys.version[0]) >= 3:
text_link = args[1]
else:
text_link = args[1].encode("utf-8")
address_link = [item[0] for item in message_links.items()
if text_link in item]
print(text_link, ">>>", address_link[0])
def setcopyright():
"""Set 'copyright' and 'credits' in __builtin__"""
__builtin__.copyright = _Printer("copyright", sys.copyright)
if sys.platform[:4] == 'java':
__builtin__.credits = _Printer(
"credits",
"Jython is maintained by the Jython developers (www.jython.org).")
elif sys.platform == 'cli':
__builtin__.credits = _Printer(
"credits",
"IronPython is maintained by the IronPython developers (www.ironpython.net).")
else:
__builtin__.credits = _Printer("credits", """\
Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
for supporting Python development. See www.python.org for more information.""")
here = os.path.dirname(os.__file__)
__builtin__.license = _Printer(
"license", "See http://www.python.org/%.3s/license.html" % sys.version,
["LICENSE.txt", "LICENSE"],
[os.path.join(here, os.pardir), here, os.curdir])
def __init__ (self, verbose=0, dry_run=0, force=0):
CCompiler.__init__ (self, verbose, dry_run, force)
self.__version = get_build_version()
self.__arch = get_build_architecture()
if self.__arch == "Intel":
# x86
if self.__version >= 7:
self.__root = r"Software\Microsoft\VisualStudio"
self.__macros = MacroExpander(self.__version)
else:
self.__root = r"Software\Microsoft\Devstudio"
self.__product = "Visual Studio version %s" % self.__version
else:
# Win64. Assume this was built with the platform SDK
self.__product = "Microsoft SDK compiler %s" % (self.__version + 6)
self.initialized = False
def expand_makefile_vars(s, vars):
"""Expand Makefile-style variables -- "${foo}" or "$(foo)" -- in
'string' according to 'vars' (a dictionary mapping variable names to
values). Variables not present in 'vars' are silently expanded to the
empty string. The variable values in 'vars' should not contain further
variable expansions; if 'vars' is the output of 'parse_makefile()',
you're fine. Returns a variable-expanded version of 's'.
"""
# This algorithm does multiple expansion, so if vars['foo'] contains
# "${bar}", it will expand ${foo} to ${bar}, and then expand
# ${bar}... and so forth. This is fine as long as 'vars' comes from
# 'parse_makefile()', which takes care of such expansions eagerly,
# according to make's variable expansion semantics.
while 1:
m = _findvar1_rx.search(s) or _findvar2_rx.search(s)
if m:
(beg, end) = m.span()
s = s[0:beg] + vars.get(m.group(1)) + s[end:]
else:
break
return s
def show_version(scoring_version):
''' Python version and library versions '''
swrite('\n=== VERSIONS ===\n\n')
# Scoring program version
swrite("Scoring program version: " + str(scoring_version) + "\n\n")
# Python version
swrite("Python version: " + version + "\n\n")
# Give information on the version installed
swrite("Versions of libraries installed:\n")
map(swrite, sorted(["%s==%s\n" % (i.key, i.version) for i in lib()]))
def show_platform():
''' Show information on platform'''
swrite('\n=== SYSTEM ===\n\n')
try:
linux_distribution = platform.linux_distribution()
except:
linux_distribution = "N/A"
swrite("""
dist: %s
linux_distribution: %s
system: %s
machine: %s
platform: %s
uname: %s
version: %s
mac_ver: %s
memory: %s
number of CPU: %s
""" % (
str(platform.dist()),
linux_distribution,
platform.system(),
platform.machine(),
platform.platform(),
platform.uname(),
platform.version(),
platform.mac_ver(),
psutil.virtual_memory(),
str(psutil.cpu_count())
))
def show_version():
# Python version and library versions
swrite('\n=== VERSIONS ===\n\n')
# Python version
swrite("Python version: " + version + "\n\n")
# Give information on the version installed
swrite("Versions of libraries installed:\n")
map(swrite, sorted(["%s==%s\n" % (i.key, i.version) for i in lib()]))
def get_pixels_slow(self, ximage):
''' Retrieve all pixels from a monitor. Pixels have to be RGB.
(!) Insanely slow version, see doc/linux-slow-version. (!)
'''
# @TODO: this part takes most of the time. Need a better solution.
def pix(pixel, _resultats={}, p__=pack):
''' Apply shifts to a pixel to get the RGB values.
This method uses of memoization.
'''
# pylint: disable=dangerous-default-value
if pixel not in _resultats:
_resultats[pixel] = p__('<B', (pixel & rmask) >> 16) + \
p__('<B', (pixel & gmask) >> 8) + \
p__('<B', pixel & bmask)
return _resultats[pixel]
self.width = ximage.contents.width
self.height = ximage.contents.height
rmask = ximage.contents.red_mask
bmask = ximage.contents.blue_mask
gmask = ximage.contents.green_mask
get_pix = self.xlib.XGetPixel
pixels = [pix(get_pix(ximage, x, y))
for y in range(self.height) for x in range(self.width)]
self.image = b''.join(pixels)
return self.image
def check(request):
return {
'version': '{major}.{minor}.{micro}'.format(
major=sys.version_info.major,
minor=sys.version_info.minor,
micro=sys.version_info.micro
),
'info': sys.version,
'executable': sys.executable,
'platform': sys.platform
}
def addbuilddir():
"""Append ./build/lib.<platform> in case we're running in the build dir
(especially for Guido :-)"""
from distutils.util import get_platform
s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
if hasattr(sys, 'gettotalrefcount'):
s += '-pydebug'
s = os.path.join(os.path.dirname(sys.path[-1]), s)
sys.path.append(s)
def _expand_globals(config):
_ensure_cfg_read()
if config.has_section('globals'):
globals = config.items('globals')
else:
globals = tuple()
sections = config.sections()
for section in sections:
if section == 'globals':
continue
for option, value in globals:
if config.has_option(section, option):
continue
config.set(section, option, value)
config.remove_section('globals')
# now expanding local variables defined in the cfg file
#
for section in config.sections():
variables = dict(config.items(section))
def _replacer(matchobj):
name = matchobj.group(1)
if name in variables:
return variables[name]
return matchobj.group(0)
for option, value in config.items(section):
config.set(section, option, _VAR_REPL.sub(_replacer, value))
#_expand_globals(_SCHEMES)
# FIXME don't rely on sys.version here, its format is an implementation detail
# of CPython, use sys.version_info or sys.hexversion
def _main():
"""Display all information sysconfig detains."""
print('Platform: "%s"' % get_platform())
print('Python version: "%s"' % get_python_version())
print('Current installation scheme: "%s"' % _get_default_scheme())
print()
_print_dict('Paths', get_paths())
print()
_print_dict('Variables', get_config_vars())
def __init__(self, filename=None, sign=False, verify=False):
"""
Initialise an instance using a (valid) filename.
"""
self.sign = sign
self.should_verify = verify
self.buildver = ''
self.pyver = [PYVER]
self.abi = ['none']
self.arch = ['any']
self.dirname = os.getcwd()
if filename is None:
self.name = 'dummy'
self.version = '0.1'
self._filename = self.filename
else:
m = NAME_VERSION_RE.match(filename)
if m:
info = m.groupdict('')
self.name = info['nm']
# Reinstate the local version separator
self.version = info['vn'].replace('_', '-')
self.buildver = info['bn']
self._filename = self.filename
else:
dirname, filename = os.path.split(filename)
m = FILENAME_RE.match(filename)
if not m:
raise DistlibException('Invalid name or '
'filename: %r' % filename)
if dirname:
self.dirname = os.path.abspath(dirname)
self._filename = filename
info = m.groupdict('')
self.name = info['nm']
self.version = info['vn']
self.buildver = info['bn']
self.pyver = info['py'].split('.')
self.abi = info['bi'].split('.')
self.arch = info['ar'].split('.')
