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📁 ..	-	2026-03-21 15:45
📄 __init__.py """ This is a module for defining private helpers which do not depend on the rest of NumPy. Everything in here must be self-contained so that it can be imported anywhere else without creating circular imports. If a utility requires the import of NumPy, it probably belongs in ``numpy.core``. """ def set_module(module): """Private decorator for overriding __module__ on a function or class. Example usage:: @set_module('numpy') def example(): pass assert example.__module__ == 'numpy' """ def decorator(func): if module is not None: func.__module__ = module return func return decorator	677 B	2026-01-20 12:58
📁 __pycache__	-	2026-03-21 15:45
📄 _inspect.py """Subset of inspect module from upstream python We use this instead of upstream because upstream inspect is slow to import, and significantly contributes to numpy import times. Importing this copy has almost no overhead. """ import types __all__ = ['getargspec', 'formatargspec'] # ----------------------------------------------------------- type-checking def ismethod(object): """Return true if the object is an instance method. Instance method objects provide these attributes: __doc__ documentation string __name__ name with which this method was defined im_class class object in which this method belongs im_func function object containing implementation of method im_self instance to which this method is bound, or None """ return isinstance(object, types.MethodType) def isfunction(object): """Return true if the object is a user-defined function. Function objects provide these attributes: __doc__ documentation string __name__ name with which this function was defined func_code code object containing compiled function bytecode func_defaults tuple of any default values for arguments func_doc (same as __doc__) func_globals global namespace in which this function was defined func_name (same as __name__) """ return isinstance(object, types.FunctionType) def iscode(object): """Return true if the object is a code object. Code objects provide these attributes: co_argcount number of arguments (not including * or ** args) co_code string of raw compiled bytecode co_consts tuple of constants used in the bytecode co_filename name of file in which this code object was created co_firstlineno number of first line in Python source code co_flags bitmap: 1=optimized \| 2=newlocals \| 4=arg \| 8=arg co_lnotab encoded mapping of line numbers to bytecode indices co_name name with which this code object was defined co_names tuple of names of local variables co_nlocals number of local variables co_stacksize virtual machine stack space required co_varnames tuple of names of arguments and local variables """ return isinstance(object, types.CodeType) # ------------------------------------------------ argument list extraction # These constants are from Python's compile.h. CO_OPTIMIZED, CO_NEWLOCALS, CO_VARARGS, CO_VARKEYWORDS = 1, 2, 4, 8 def getargs(co): """Get information about the arguments accepted by a code object. Three things are returned: (args, varargs, varkw), where 'args' is a list of argument names (possibly containing nested lists), and 'varargs' and 'varkw' are the names of the and ** arguments or None. """ if not iscode(co): raise TypeError('arg is not a code object') nargs = co.co_argcount names = co.co_varnames args = list(names[:nargs]) # The following acrobatics are for anonymous (tuple) arguments. # Which we do not need to support, so remove to avoid importing # the dis module. for i in range(nargs): if args[i][:1] in ['', '.']: raise TypeError("tuple function arguments are not supported") varargs = None if co.co_flags & CO_VARARGS: varargs = co.co_varnames[nargs] nargs = nargs + 1 varkw = None if co.co_flags & CO_VARKEYWORDS: varkw = co.co_varnames[nargs] return args, varargs, varkw def getargspec(func): """Get the names and default values of a function's arguments. A tuple of four things is returned: (args, varargs, varkw, defaults). 'args' is a list of the argument names (it may contain nested lists). 'varargs' and 'varkw' are the names of the * and ** arguments or None. 'defaults' is an n-tuple of the default values of the last n arguments. """ if ismethod(func): func = func.__func__ if not isfunction(func): raise TypeError('arg is not a Python function') args, varargs, varkw = getargs(func.__code__) return args, varargs, varkw, func.__defaults__ def getargvalues(frame): """Get information about arguments passed into a particular frame. A tuple of four things is returned: (args, varargs, varkw, locals). 'args' is a list of the argument names (it may contain nested lists). 'varargs' and 'varkw' are the names of the * and ** arguments or None. 'locals' is the locals dictionary of the given frame. """ args, varargs, varkw = getargs(frame.f_code) return args, varargs, varkw, frame.f_locals def joinseq(seq): if len(seq) == 1: return '(' + seq[0] + ',)' else: return '(' + ', '.join(seq) + ')' def strseq(object, convert, join=joinseq): """Recursively walk a sequence, stringifying each element. """ if type(object) in [list, tuple]: return join([strseq(_o, convert, join) for _o in object]) else: return convert(object) def formatargspec(args, varargs=None, varkw=None, defaults=None, formatarg=str, formatvarargs=lambda name: '' + name, formatvarkw=lambda name: '' + name, formatvalue=lambda value: '=' + repr(value), join=joinseq): """Format an argument spec from the 4 values returned by getargspec. The first four arguments are (args, varargs, varkw, defaults). The other four arguments are the corresponding optional formatting functions that are called to turn names and values into strings. The ninth argument is an optional function to format the sequence of arguments. """ specs = [] if defaults: firstdefault = len(args) - len(defaults) for i in range(len(args)): spec = strseq(args[i], formatarg, join) if defaults and i >= firstdefault: spec = spec + formatvalue(defaults[i - firstdefault]) specs.append(spec) if varargs is not None: specs.append(formatvarargs(varargs)) if varkw is not None: specs.append(formatvarkw(varkw)) return '(' + ', '.join(specs) + ')' def formatargvalues(args, varargs, varkw, locals, formatarg=str, formatvarargs=lambda name: '' + name, formatvarkw=lambda name: '**' + name, formatvalue=lambda value: '=' + repr(value), join=joinseq): """Format an argument spec from the 4 values returned by getargvalues. The first four arguments are (args, varargs, varkw, locals). The next four arguments are the corresponding optional formatting functions that are called to turn names and values into strings. The ninth argument is an optional function to format the sequence of arguments. """ def convert(name, locals=locals, formatarg=formatarg, formatvalue=formatvalue): return formatarg(name) + formatvalue(locals[name]) specs = [strseq(arg, convert, join) for arg in args] if varargs: specs.append(formatvarargs(varargs) + formatvalue(locals[varargs])) if varkw: specs.append(formatvarkw(varkw) + formatvalue(locals[varkw])) return '(' + ', '.join(specs) + ')'	7.27 KB	2026-01-20 12:58
📄 _pep440.py """Utility to compare pep440 compatible version strings. The LooseVersion and StrictVersion classes that distutils provides don't work; they don't recognize anything like alpha/beta/rc/dev versions. """ # Copyright (c) Donald Stufft and individual contributors. # All rights reserved. # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # 1. Redistributions of source code must retain the above copyright notice, # this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. import collections import itertools import re __all__ = [ "parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN", ] # BEGIN packaging/_structures.py class Infinity: def __repr__(self): return "Infinity" def __hash__(self): return hash(repr(self)) def __lt__(self, other): return False def __le__(self, other): return False def __eq__(self, other): return isinstance(other, self.__class__) def __ne__(self, other): return not isinstance(other, self.__class__) def __gt__(self, other): return True def __ge__(self, other): return True def __neg__(self): return NegativeInfinity Infinity = Infinity() class NegativeInfinity: def __repr__(self): return "-Infinity" def __hash__(self): return hash(repr(self)) def __lt__(self, other): return True def __le__(self, other): return True def __eq__(self, other): return isinstance(other, self.__class__) def __ne__(self, other): return not isinstance(other, self.__class__) def __gt__(self, other): return False def __ge__(self, other): return False def __neg__(self): return Infinity # BEGIN packaging/version.py NegativeInfinity = NegativeInfinity() _Version = collections.namedtuple( "_Version", ["epoch", "release", "dev", "pre", "post", "local"], ) def parse(version): """ Parse the given version string and return either a :class:`Version` object or a :class:`LegacyVersion` object depending on if the given version is a valid PEP 440 version or a legacy version. """ try: return Version(version) except InvalidVersion: return LegacyVersion(version) class InvalidVersion(ValueError): """ An invalid version was found, users should refer to PEP 440. """ class _BaseVersion: def __hash__(self): return hash(self._key) def __lt__(self, other): return self._compare(other, lambda s, o: s < o) def __le__(self, other): return self._compare(other, lambda s, o: s <= o) def __eq__(self, other): return self._compare(other, lambda s, o: s == o) def __ge__(self, other): return self._compare(other, lambda s, o: s >= o) def __gt__(self, other): return self._compare(other, lambda s, o: s > o) def __ne__(self, other): return self._compare(other, lambda s, o: s != o) def _compare(self, other, method): if not isinstance(other, _BaseVersion): return NotImplemented return method(self._key, other._key) class LegacyVersion(_BaseVersion): def __init__(self, version): self._version = str(version) self._key = _legacy_cmpkey(self._version) def __str__(self): return self._version def __repr__(self): return "<LegacyVersion({0})>".format(repr(str(self))) @property def public(self): return self._version @property def base_version(self): return self._version @property def local(self): return None @property def is_prerelease(self): return False @property def is_postrelease(self): return False _legacy_version_component_re = re.compile( r"(\d+ \| [a-z]+ \| \.\| -)", re.VERBOSE, ) _legacy_version_replacement_map = { "pre": "c", "preview": "c", "-": "final-", "rc": "c", "dev": "@", } def _parse_version_parts(s): for part in _legacy_version_component_re.split(s): part = _legacy_version_replacement_map.get(part, part) if not part or part == ".": continue if part[:1] in "0123456789": # pad for numeric comparison yield part.zfill(8) else: yield "" + part # ensure that alpha/beta/candidate are before final yield "final" def _legacy_cmpkey(version): # We hardcode an epoch of -1 here. A PEP 440 version can only have an epoch # greater than or equal to 0. This will effectively put the LegacyVersion, # which uses the defacto standard originally implemented by setuptools, # as before all PEP 440 versions. epoch = -1 # This scheme is taken from pkg_resources.parse_version setuptools prior to # its adoption of the packaging library. parts = [] for part in _parse_version_parts(version.lower()): if part.startswith(""): # remove "-" before a prerelease tag if part < "final": while parts and parts[-1] == "final-": parts.pop() # remove trailing zeros from each series of numeric parts while parts and parts[-1] == "00000000": parts.pop() parts.append(part) parts = tuple(parts) return epoch, parts # Deliberately not anchored to the start and end of the string, to make it # easier for 3rd party code to reuse VERSION_PATTERN = r""" v? (?: (?:(?P<epoch>[0-9]+)!)? # epoch (?P<release>[0-9]+(?:\.[0-9]+)) # release segment (?P<pre> # pre-release [-_\.]? (?P<pre_l>(a\|b\|c\|rc\|alpha\|beta\|pre\|preview)) [-_\.]? (?P<pre_n>[0-9]+)? )? (?P<post> # post release (?:-(?P<post_n1>[0-9]+)) \| (?: [-_\.]? (?P<post_l>post\|rev\|r) [-_\.]? (?P<post_n2>[0-9]+)? ) )? (?P<dev> # dev release [-_\.]? (?P<dev_l>dev) [-_\.]? (?P<dev_n>[0-9]+)? )? ) (?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)))? # local version """ class Version(_BaseVersion): _regex = re.compile( r"^\s" + VERSION_PATTERN + r"\s*$", re.VERBOSE \| re.IGNORECASE, ) def __init__(self, version): # Validate the version and parse it into pieces match = self._regex.search(version) if not match: raise InvalidVersion("Invalid version: '{0}'".format(version)) # Store the parsed out pieces of the version self._version = _Version( epoch=int(match.group("epoch")) if match.group("epoch") else 0, release=tuple(int(i) for i in match.group("release").split(".")), pre=_parse_letter_version( match.group("pre_l"), match.group("pre_n"), ), post=_parse_letter_version( match.group("post_l"), match.group("post_n1") or match.group("post_n2"), ), dev=_parse_letter_version( match.group("dev_l"), match.group("dev_n"), ), local=_parse_local_version(match.group("local")), ) # Generate a key which will be used for sorting self._key = _cmpkey( self._version.epoch, self._version.release, self._version.pre, self._version.post, self._version.dev, self._version.local, ) def __repr__(self): return "<Version({0})>".format(repr(str(self))) def __str__(self): parts = [] # Epoch if self._version.epoch != 0: parts.append("{0}!".format(self._version.epoch)) # Release segment parts.append(".".join(str(x) for x in self._version.release)) # Pre-release if self._version.pre is not None: parts.append("".join(str(x) for x in self._version.pre)) # Post-release if self._version.post is not None: parts.append(".post{0}".format(self._version.post[1])) # Development release if self._version.dev is not None: parts.append(".dev{0}".format(self._version.dev[1])) # Local version segment if self._version.local is not None: parts.append( "+{0}".format(".".join(str(x) for x in self._version.local)) ) return "".join(parts) @property def public(self): return str(self).split("+", 1)[0] @property def base_version(self): parts = [] # Epoch if self._version.epoch != 0: parts.append("{0}!".format(self._version.epoch)) # Release segment parts.append(".".join(str(x) for x in self._version.release)) return "".join(parts) @property def local(self): version_string = str(self) if "+" in version_string: return version_string.split("+", 1)[1] @property def is_prerelease(self): return bool(self._version.dev or self._version.pre) @property def is_postrelease(self): return bool(self._version.post) def _parse_letter_version(letter, number): if letter: # We assume there is an implicit 0 in a pre-release if there is # no numeral associated with it. if number is None: number = 0 # We normalize any letters to their lower-case form letter = letter.lower() # We consider some words to be alternate spellings of other words and # in those cases we want to normalize the spellings to our preferred # spelling. if letter == "alpha": letter = "a" elif letter == "beta": letter = "b" elif letter in ["c", "pre", "preview"]: letter = "rc" elif letter in ["rev", "r"]: letter = "post" return letter, int(number) if not letter and number: # We assume that if we are given a number but not given a letter, # then this is using the implicit post release syntax (e.g., 1.0-1) letter = "post" return letter, int(number) _local_version_seperators = re.compile(r"[\._-]") def _parse_local_version(local): """ Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve"). """ if local is not None: return tuple( part.lower() if not part.isdigit() else int(part) for part in _local_version_seperators.split(local) ) def _cmpkey(epoch, release, pre, post, dev, local): # When we compare a release version, we want to compare it with all of the # trailing zeros removed. So we'll use a reverse the list, drop all the now # leading zeros until we come to something non-zero, then take the rest, # re-reverse it back into the correct order, and make it a tuple and use # that for our sorting key. release = tuple( reversed(list( itertools.dropwhile( lambda x: x == 0, reversed(release), ) )) ) # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0. # We'll do this by abusing the pre-segment, but we _only_ want to do this # if there is no pre- or a post-segment. If we have one of those, then # the normal sorting rules will handle this case correctly. if pre is None and post is None and dev is not None: pre = -Infinity # Versions without a pre-release (except as noted above) should sort after # those with one. elif pre is None: pre = Infinity # Versions without a post-segment should sort before those with one. if post is None: post = -Infinity # Versions without a development segment should sort after those with one. if dev is None: dev = Infinity if local is None: # Versions without a local segment should sort before those with one. local = -Infinity else: # Versions with a local segment need that segment parsed to implement # the sorting rules in PEP440. # - Alphanumeric segments sort before numeric segments # - Alphanumeric segments sort lexicographically # - Numeric segments sort numerically # - Shorter versions sort before longer versions when the prefixes # match exactly local = tuple( (i, "") if isinstance(i, int) else (-Infinity, i) for i in local ) return epoch, release, pre, post, dev, local	13.74 KB	2026-01-20 12:58

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