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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2025-04-10 17:07
signatures	[ DIR ]	drwxr-xr-x	2025-04-10 17:07
test	[ DIR ]	drwxr-xr-x	2025-04-10 17:07
tool	[ DIR ]	drwxr-xr-x	2025-04-10 17:07
__init__.py	96 B	-rw-r--r--	2016-02-06 18:19
__main__.py	416 B	-rw-r--r--	2015-09-15 19:28
archive.py	2.23 KB	-rw-r--r--	2016-02-06 18:14
bdist_wheel.py	17.03 KB	-rw-r--r--	2016-02-05 21:42
decorator.py	541 B	-rw-r--r--	2015-09-15 19:28
egg2wheel.py	2.57 KB	-rw-r--r--	2015-09-15 19:28
eggnames.txt	2.43 KB	-rw-r--r--	2015-09-15 19:28
install.py	17.65 KB	-rw-r--r--	2015-09-15 19:28
metadata.py	10.8 KB	-rw-r--r--	2016-12-01 17:04
paths.py	1.1 KB	-rw-r--r--	2015-09-15 19:28
pep425tags.py	5.22 KB	-rw-r--r--	2016-02-05 21:42
pkginfo.py	1.2 KB	-rw-r--r--	2015-09-15 19:28
util.py	4.78 KB	-rw-r--r--	2015-09-15 19:28
wininst2wheel.py	6.8 KB	-rw-r--r--	2015-09-15 19:28

Rename

"""Utility functions."""

import sys
import os
import base64
import json
import hashlib
try:
    from collections import OrderedDict
except ImportError:
    OrderedDict = dict

__all__ = ['urlsafe_b64encode', 'urlsafe_b64decode', 'utf8',
           'to_json', 'from_json', 'matches_requirement']

def urlsafe_b64encode(data):
    """urlsafe_b64encode without padding"""
    return base64.urlsafe_b64encode(data).rstrip(binary('='))

def urlsafe_b64decode(data):
    """urlsafe_b64decode without padding"""
    pad = b'=' * (4 - (len(data) & 3))
    return base64.urlsafe_b64decode(data + pad)

def to_json(o):
    '''Convert given data to JSON.'''
    return json.dumps(o, sort_keys=True)

def from_json(j):
    '''Decode a JSON payload.'''
    return json.loads(j)

def open_for_csv(name, mode):
    if sys.version_info[0] < 3:
        nl = {}
        bin = 'b'
    else:
        nl = { 'newline': '' }
        bin = ''
    return open(name, mode + bin, **nl)

try:
    unicode

def utf8(data):
        '''Utf-8 encode data.'''
        if isinstance(data, unicode):
            return data.encode('utf-8')
        return data
except NameError:
    def utf8(data):
        '''Utf-8 encode data.'''
        if isinstance(data, str):
            return data.encode('utf-8')
        return data

try:
    # For encoding ascii back and forth between bytestrings, as is repeatedly
    # necessary in JSON-based crypto under Python 3
    unicode
    def native(s):
        return s
    def binary(s):
        if isinstance(s, unicode):
            return s.encode('ascii')
        return s
except NameError:
    def native(s):
        if isinstance(s, bytes):
            return s.decode('ascii')
        return s
    def binary(s):
        if isinstance(s, str):
            return s.encode('ascii')

class HashingFile(object):
    def __init__(self, fd, hashtype='sha256'):
        self.fd = fd
        self.hashtype = hashtype
        self.hash = hashlib.new(hashtype)
        self.length = 0
    def write(self, data):
        self.hash.update(data)
        self.length += len(data)
        self.fd.write(data)
    def close(self):
        self.fd.close()
    def digest(self):
        if self.hashtype == 'md5':
            return self.hash.hexdigest()
        digest = self.hash.digest()
        return self.hashtype + '=' + native(urlsafe_b64encode(digest))

class OrderedDefaultDict(OrderedDict):
    def __init__(self, *args, **kwargs):
        if not args:
            self.default_factory = None
        else:
            if not (args[0] is None or callable(args[0])):
                raise TypeError('first argument must be callable or None')
            self.default_factory = args[0]
            args = args[1:]
        super(OrderedDefaultDict, self).__init__(*args, **kwargs)

def __missing__ (self, key):
        if self.default_factory is None:
            raise KeyError(key)
        self[key] = default = self.default_factory()
        return default

if sys.platform == 'win32':
    import ctypes.wintypes
    # CSIDL_APPDATA for reference - not used here for compatibility with
    # dirspec, which uses LOCAL_APPDATA and COMMON_APPDATA in that order
    csidl = dict(CSIDL_APPDATA=26, CSIDL_LOCAL_APPDATA=28,
            CSIDL_COMMON_APPDATA=35)
    def get_path(name):
        SHGFP_TYPE_CURRENT = 0
        buf = ctypes.create_unicode_buffer(ctypes.wintypes.MAX_PATH)
        ctypes.windll.shell32.SHGetFolderPathW(0, csidl[name], 0, SHGFP_TYPE_CURRENT, buf)
        return buf.value

def save_config_path(*resource):
        appdata = get_path("CSIDL_LOCAL_APPDATA")
        path = os.path.join(appdata, *resource)
        if not os.path.isdir(path):
            os.makedirs(path)
        return path
    def load_config_paths(*resource):
        ids = ["CSIDL_LOCAL_APPDATA", "CSIDL_COMMON_APPDATA"]
        for id in ids:
            base = get_path(id)
            path = os.path.join(base, *resource)
            if os.path.exists(path):
                yield path
else:
    def save_config_path(*resource):
        import xdg.BaseDirectory
        return xdg.BaseDirectory.save_config_path(*resource)
    def load_config_paths(*resource):
        import xdg.BaseDirectory
        return xdg.BaseDirectory.load_config_paths(*resource)

def matches_requirement(req, wheels):
    """List of wheels matching a requirement.

:param req: The requirement to satisfy
    :param wheels: List of wheels to search.
    """
    try:
        from pkg_resources import Distribution, Requirement
    except ImportError:
        raise RuntimeError("Cannot use requirements without pkg_resources")

req = Requirement.parse(req)

selected = []
    for wf in wheels:
        f = wf.parsed_filename
        dist = Distribution(project_name=f.group("name"), version=f.group("ver"))
        if dist in req:
            selected.append(wf)
    return selected