add python dependencies

.CondaPkg/env/Lib/encodings/__init__.py

@@ -0,0 +1,174 @@
+""" Standard "encodings" Package
+
+    Standard Python encoding modules are stored in this package
+    directory.
+
+    Codec modules must have names corresponding to normalized encoding
+    names as defined in the normalize_encoding() function below, e.g.
+    'utf-8' must be implemented by the module 'utf_8.py'.
+
+    Each codec module must export the following interface:
+
+    * getregentry() -> codecs.CodecInfo object
+    The getregentry() API must return a CodecInfo object with encoder, decoder,
+    incrementalencoder, incrementaldecoder, streamwriter and streamreader
+    attributes which adhere to the Python Codec Interface Standard.
+
+    In addition, a module may optionally also define the following
+    APIs which are then used by the package's codec search function:
+
+    * getaliases() -> sequence of encoding name strings to use as aliases
+
+    Alias names returned by getaliases() must be normalized encoding
+    names as defined by normalize_encoding().
+
+Written by Marc-Andre Lemburg (mal@lemburg.com).
+
+(c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
+
+"""#"
+
+import codecs
+import sys
+from . import aliases
+
+_cache = {}
+_unknown = '--unknown--'
+_import_tail = ['*']
+_aliases = aliases.aliases
+
+class CodecRegistryError(LookupError, SystemError):
+    pass
+
+def normalize_encoding(encoding):
+
+    """ Normalize an encoding name.
+
+        Normalization works as follows: all non-alphanumeric
+        characters except the dot used for Python package names are
+        collapsed and replaced with a single underscore, e.g. '  -;#'
+        becomes '_'. Leading and trailing underscores are removed.
+
+        Note that encoding names should be ASCII only.
+
+    """
+    if isinstance(encoding, bytes):
+        encoding = str(encoding, "ascii")
+
+    chars = []
+    punct = False
+    for c in encoding:
+        if c.isalnum() or c == '.':
+            if punct and chars:
+                chars.append('_')
+            if c.isascii():
+                chars.append(c)
+            punct = False
+        else:
+            punct = True
+    return ''.join(chars)
+
+def search_function(encoding):
+
+    # Cache lookup
+    entry = _cache.get(encoding, _unknown)
+    if entry is not _unknown:
+        return entry
+
+    # Import the module:
+    #
+    # First try to find an alias for the normalized encoding
+    # name and lookup the module using the aliased name, then try to
+    # lookup the module using the standard import scheme, i.e. first
+    # try in the encodings package, then at top-level.
+    #
+    norm_encoding = normalize_encoding(encoding)
+    aliased_encoding = _aliases.get(norm_encoding) or \
+                       _aliases.get(norm_encoding.replace('.', '_'))
+    if aliased_encoding is not None:
+        modnames = [aliased_encoding,
+                    norm_encoding]
+    else:
+        modnames = [norm_encoding]
+    for modname in modnames:
+        if not modname or '.' in modname:
+            continue
+        try:
+            # Import is absolute to prevent the possibly malicious import of a
+            # module with side-effects that is not in the 'encodings' package.
+            mod = __import__('encodings.' + modname, fromlist=_import_tail,
+                             level=0)
+        except ImportError:
+            # ImportError may occur because 'encodings.(modname)' does not exist,
+            # or because it imports a name that does not exist (see mbcs and oem)
+            pass
+        else:
+            break
+    else:
+        mod = None
+
+    try:
+        getregentry = mod.getregentry
+    except AttributeError:
+        # Not a codec module
+        mod = None
+
+    if mod is None:
+        # Cache misses
+        _cache[encoding] = None
+        return None
+
+    # Now ask the module for the registry entry
+    entry = getregentry()
+    if not isinstance(entry, codecs.CodecInfo):
+        if not 4 <= len(entry) <= 7:
+            raise CodecRegistryError('module "%s" (%s) failed to register'
+                                     % (mod.__name__, mod.__file__))
+        if not callable(entry[0]) or not callable(entry[1]) or \
+           (entry[2] is not None and not callable(entry[2])) or \
+           (entry[3] is not None and not callable(entry[3])) or \
+           (len(entry) > 4 and entry[4] is not None and not callable(entry[4])) or \
+           (len(entry) > 5 and entry[5] is not None and not callable(entry[5])):
+            raise CodecRegistryError('incompatible codecs in module "%s" (%s)'
+                                     % (mod.__name__, mod.__file__))
+        if len(entry)<7 or entry[6] is None:
+            entry += (None,)*(6-len(entry)) + (mod.__name__.split(".", 1)[1],)
+        entry = codecs.CodecInfo(*entry)
+
+    # Cache the codec registry entry
+    _cache[encoding] = entry
+
+    # Register its aliases (without overwriting previously registered
+    # aliases)
+    try:
+        codecaliases = mod.getaliases()
+    except AttributeError:
+        pass
+    else:
+        for alias in codecaliases:
+            if alias not in _aliases:
+                _aliases[alias] = modname
+
+    # Return the registry entry
+    return entry
+
+# Register the search_function in the Python codec registry
+codecs.register(search_function)
+
+if sys.platform == 'win32':
+    # bpo-671666, bpo-46668: If Python does not implement a codec for current
+    # Windows ANSI code page, use the "mbcs" codec instead:
+    # WideCharToMultiByte() and MultiByteToWideChar() functions with CP_ACP.
+    # Python does not support custom code pages.
+    def _alias_mbcs(encoding):
+        try:
+            import _winapi
+            ansi_code_page = "cp%s" % _winapi.GetACP()
+            if encoding == ansi_code_page:
+                import encodings.mbcs
+                return encodings.mbcs.getregentry()
+        except ImportError:
+            # Imports may fail while we are shutting down
+            pass
+
+    codecs.register(_alias_mbcs)