@ -16,7 +16,6 @@ import os
import platform
import re
import shlex
import shutil
import socket
import struct
import subprocess
@ -24,11 +23,15 @@ import sys
import types
import xml . etree . ElementTree
_IDENTITY = lambda x : x
# naming convention
# 'compat_' + Python3_name.replace('.', '_')
# other aliases exist for convenience and/or legacy
# wrap disposable test values in type() to reclaim storage
# deal with critical unicode/str things first
# deal with critical unicode/str things first:
# compat_str, compat_basestring, compat_chr
try :
# Python 2
compat_str , compat_basestring , compat_chr = (
@ -39,18 +42,23 @@ except NameError:
str , ( str , bytes ) , chr
)
# casefold
# compat_casefold
try :
compat_str . casefold
compat_casefold = lambda s : s . casefold ( )
except AttributeError :
from . casefold import as compat_casefold
from . casefold import _ casefold as compat_casefold
# compat_collections_abc
try :
import collections . abc as compat_collections_abc
except ImportError :
import collections as compat_collections_abc
compat_collections_abc = collections
# compat_urllib_request
try :
import urllib . request as compat_urllib_request
except ImportError : # Python 2
@ -79,11 +87,15 @@ except TypeError:
_add_init_method_arg ( compat_urllib_request . Request )
del _add_init_method_arg
# compat_urllib_error
try :
import urllib . error as compat_urllib_error
except ImportError : # Python 2
import urllib2 as compat_urllib_error
# compat_urllib_parse
try :
import urllib . parse as compat_urllib_parse
except ImportError : # Python 2
@ -98,17 +110,23 @@ except ImportError: # Python 2
compat_urlparse = compat_urllib_parse
compat_urllib_parse_urlparse = compat_urllib_parse . urlparse
# compat_urllib_response
try :
import urllib . response as compat_urllib_response
except ImportError : # Python 2
import urllib as compat_urllib_response
# compat_urllib_response.addinfourl
try :
compat_urllib_response . addinfourl . status
except AttributeError :
# .getcode() is deprecated in Py 3.
compat_urllib_response . addinfourl . status = property ( lambda self : self . getcode ( ) )
# compat_http_cookiejar
try :
import http . cookiejar as compat_cookiejar
except ImportError : # Python 2
@ -127,12 +145,16 @@ else:
compat_cookiejar_Cookie = compat_cookiejar . Cookie
compat_http_cookiejar_Cookie = compat_cookiejar_Cookie
# compat_http_cookies
try :
import http . cookies as compat_cookies
except ImportError : # Python 2
import Cookie as compat_cookies
compat_http_cookies = compat_cookies
# compat_http_cookies_SimpleCookie
if sys . version_info [ 0 ] == 2 or sys . version_info < ( 3 , 3 ) :
class compat_cookies_SimpleCookie ( compat_cookies . SimpleCookie ) :
def load ( self , rawdata ) :
@ -155,11 +177,15 @@ else:
compat_cookies_SimpleCookie = compat_cookies . SimpleCookie
compat_http_cookies_SimpleCookie = compat_cookies_SimpleCookie
# compat_html_entities, probably useless now
try :
import html . entities as compat_html_entities
except ImportError : # Python 2
import htmlentitydefs as compat_html_entities
# compat_html_entities_html5
try : # Python >= 3.3
compat_html_entities_html5 = compat_html_entities . html5
except AttributeError :
@ -2408,18 +2434,24 @@ except AttributeError:
# Py < 3.1
compat_http_client . HTTPResponse . getcode = lambda self : self . status
# compat_urllib_HTTPError
try :
from urllib . error import HTTPError as compat_HTTPError
except ImportError : # Python 2
from urllib2 import HTTPError as compat_HTTPError
compat_urllib_HTTPError = compat_HTTPError
# compat_urllib_request_urlretrieve
try :
from urllib . request import urlretrieve as compat_urlretrieve
except ImportError : # Python 2
from urllib import urlretrieve as compat_urlretrieve
compat_urllib_request_urlretrieve = compat_urlretrieve
# compat_html_parser_HTMLParser, compat_html_parser_HTMLParseError
try :
from HTMLParser import (
HTMLParser as compat_HTMLParser ,
@ -2432,22 +2464,33 @@ except ImportError: # Python 3
# HTMLParseError was deprecated in Python 3.3 and removed in
# Python 3.5. Introducing dummy exception for Python >3.5 for compatible
# and uniform cross-version exception handling
class compat_HTMLParseError ( Exception ) :
pass
compat_html_parser_HTMLParser = compat_HTMLParser
compat_html_parser_HTMLParseError = compat_HTMLParseError
# compat_subprocess_get_DEVNULL
try :
_DEVNULL = subprocess . DEVNULL
compat_subprocess_get_DEVNULL = lambda : _DEVNULL
except AttributeError :
compat_subprocess_get_DEVNULL = lambda : open ( os . path . devnull , ' w ' )
# compat_http_server
try :
import http . server as compat_http_server
except ImportError :
import BaseHTTPServer as compat_http_server
# compat_urllib_parse_unquote_to_bytes,
# compat_urllib_parse_unquote, compat_urllib_parse_unquote_plus,
# compat_urllib_parse_urlencode,
# compat_urllib_parse_parse_qs
try :
from urllib . parse import unquote_to_bytes as compat_urllib_parse_unquote_to_bytes
from urllib . parse import unquote as compat_urllib_parse_unquote
@ -2455,8 +2498,7 @@ try:
from urllib . parse import urlencode as compat_urllib_parse_urlencode
from urllib . parse import parse_qs as compat_parse_qs
except ImportError : # Python 2
_asciire = ( compat_urllib_parse . _asciire if hasattr ( compat_urllib_parse , ' _asciire ' )
else re . compile ( r ' ([ \ x00- \ x7f]+) ' ) )
_asciire = getattr ( compat_urllib_parse , ' _asciire ' , None ) or re . compile ( r ' ([ \ x00- \ x7f]+) ' )
# HACK: The following are the correct unquote_to_bytes, unquote and unquote_plus
# implementations from cpython 3.4.3's stdlib. Python 2's version
@ -2524,24 +2566,21 @@ except ImportError: # Python 2
# Possible solutions are to either port it from python 3 with all
# the friends or manually ensure input query contains only byte strings.
# We will stick with latter thus recursively encoding the whole query.
def compat_urllib_parse_urlencode ( query , doseq = 0 , encoding = ' utf-8 ' ) :
def compat_urllib_parse_urlencode ( query , doseq = 0 , safe = ' ' , encoding = ' utf-8 ' , errors = ' strict ' ) :
def encode_elem ( e ) :
if isinstance ( e , dict ) :
e = encode_dict ( e )
elif isinstance ( e , ( list , tuple , ) ) :
list_e = encode_list ( e )
e = tuple ( list_e ) if isinstance ( e , tuple ) else list_e
e = type ( e ) ( encode_elem ( el ) for el in e )
elif isinstance ( e , compat_str ) :
e = e . encode ( encoding
e = e . encode ( encoding , errors )
return e
def encode_dict ( d ) :
return dict ( ( encode_elem ( k ) , encode_elem ( v ) ) for k , v in d . items ( ) )
def encode_list ( l ) :
return [ encode_elem ( e ) for e in l ]
return tuple ( ( encode_elem ( k ) , encode_elem ( v ) ) for k , v in d . items ( ) )
return compat_urllib_parse . _urlencode ( encode_elem ( query ) , doseq = doseq )
return compat_urllib_parse . _urlencode ( encode_elem ( query ) , doseq = doseq ) . decode ( ' ascii ' )
# HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
# Python 2's version is apparently totally broken
@ -2596,8 +2635,61 @@ except ImportError: # Python 2
( ' parse_qs ' , compat_parse_qs ) ) :
setattr ( compat_urllib_parse , name , fix )
try :
all ( chr ( i ) in b ' ' for i in range ( 256 ) )
except TypeError :
# not all chr(i) are str: patch Python2 quote
_safemaps = getattr ( compat_urllib_parse , ' _safemaps ' , { } )
_always_safe = frozenset ( compat_urllib_parse . always_safe )
def _quote ( s , safe = ' / ' ) :
""" quote( ' abc def ' ) -> ' abc %20d ef ' """
if not s and s is not None : # fast path
return s
safe = frozenset ( safe )
cachekey = ( safe , _always_safe )
try :
safe_map = _safemaps [ cachekey ]
except KeyError :
safe = _always_safe | safe
safe_map = { }
for i in range ( 256 ) :
c = chr ( i )
safe_map [ c ] = (
c if ( i < 128 and c in safe )
else b ' % {0:02X} ' . format ( i ) )
_safemaps [ cachekey ] = safe_map
if safe . issuperset ( s ) :
return s
return ' ' . join ( safe_map [ c ] for c in s )
# linked code
def _quote_plus ( s , safe = ' ' ) :
return (
_quote ( s , safe + b ' ' ) . replace ( b ' ' , b ' + ' ) if b ' ' in s
else _quote ( s , safe ) )
# linked code
def _urlcleanup ( ) :
if compat_urllib_parse . _urlopener :
compat_urllib_parse . _urlopener . cleanup ( )
_safemaps . clear ( )
compat_urllib_parse . ftpcache . clear ( )
for name , fix in (
( ' quote ' , _quote ) ,
( ' quote_plus ' , _quote_plus ) ,
( ' urlcleanup ' , _urlcleanup ) ) :
setattr ( compat_urllib_parse , ' _ ' + name , getattr ( compat_urllib_parse , name ) )
setattr ( compat_urllib_parse , name , fix )
compat_urllib_parse_parse_qs = compat_parse_qs
# compat_urllib_request_DataHandler
try :
from urllib . request import DataHandler as compat_urllib_request_DataHandler
except ImportError : # Python < 3.4
@ -2632,16 +2724,20 @@ except ImportError: # Python < 3.4
return compat_urllib_response . addinfourl ( io . BytesIO ( data ) , headers , url )
# compat_xml_etree_ElementTree_ParseError
try :
from xml . etree . ElementTree import ParseError as compat_xml_parse_error
except ImportError : # Python 2.6
from xml . parsers . expat import ExpatError as compat_xml_parse_error
compat_xml_etree_ElementTree_ParseError = compat_xml_parse_error
etree = xml . etree . ElementTree
# compat_xml_etree_ElementTree_Element
_etree = xml . etree . ElementTree
class _TreeBuilder ( . TreeBuilder ) :
class _TreeBuilder ( _ etree. TreeBuilder ) :
def doctype ( self , name , pubid , system ) :
pass
@ -2650,7 +2746,7 @@ try:
# xml.etree.ElementTree.Element is a method in Python <=2.6 and
# the following will crash with:
# TypeError: isinstance() arg 2 must be a class, type, or tuple of classes and types
isinstance ( None , . Element )
isinstance ( None , _ etree. Element )
from xml . etree . ElementTree import Element as compat_etree_Element
except TypeError : # Python <=2.6
from xml . etree . ElementTree import _ElementInterface as compat_etree_Element
@ -2658,12 +2754,12 @@ compat_xml_etree_ElementTree_Element = compat_etree_Element
if sys . version_info [ 0 ] > = 3 :
def compat_etree_fromstring ( text ) :
return . XML ( text , parser = . XMLParser ( target = _TreeBuilder ( ) ) )
return _ etree. XML ( text , parser = _ etree. XMLParser ( target = _TreeBuilder ( ) ) )
else :
# python 2.x tries to encode unicode strings with ascii (see the
# XMLParser._fixtext method)
try :
_etree_iter = . Element . iter
_etree_iter = _ etree. Element . iter
except AttributeError : # Python <=2.6
def _etree_iter ( root ) :
for el in root . findall ( ' * ' ) :
@ -2675,27 +2771,29 @@ else:
# 2.7 source
def _XML ( text , parser = None ) :
if not parser :
parser = . XMLParser ( target = _TreeBuilder ( ) )
parser = _ etree. XMLParser ( target = _TreeBuilder ( ) )
parser . feed ( text )
return parser . close ( )
def _element_factory ( * args , * * kwargs ) :
el = . Element ( * args , * * kwargs )
el = _ etree. Element ( * args , * * kwargs )
for k , v in el . items ( ) :
if isinstance ( v , bytes ) :
el . set ( k , v . decode ( ' utf-8 ' ) )
return el
def compat_etree_fromstring ( text ) :
doc = _XML ( text , parser = . XMLParser ( target = _TreeBuilder ( element_factory = _element_factory ) ) )
doc = _XML ( text , parser = _ etree. XMLParser ( target = _TreeBuilder ( element_factory = _element_factory ) ) )
for el in _etree_iter ( doc ) :
if el . text is not None and isinstance ( el . text , bytes ) :
el . text = el . text . decode ( ' utf-8 ' )
return doc
if hasattr ( etree , ' register_namespace ' ) :
compat_etree_register_namespace = etree . register_namespace
else :
# compat_xml_etree_register_namespace
try :
compat_etree_register_namespace = _etree . register_namespace
except AttributeError :
def compat_etree_register_namespace ( prefix , uri ) :
""" Register a namespace prefix.
The registry is global , and any existing mapping for either the
@ -2704,14 +2802,16 @@ else:
attributes in this namespace will be serialized with prefix if possible .
ValueError is raised if prefix is reserved or is invalid .
"""
if re . match ( r " ns \ d+$ " , prefix ) :
raise ValueError ( " Prefix format reserved for internal use " )
for k , v in list ( . _namespace_map . items ( ) ) :
if re . match ( r ' ns \ d+$ ' , prefix ) :
raise ValueError ( ' Prefix format reserved for internal use ' )
for k , v in list ( _ etree. _namespace_map . items ( ) ) :
if k == uri or v == prefix :
del . _namespace_map [ k ]
. _namespace_map [ uri ] = prefix
del _ etree. _namespace_map [ k ]
_ etree. _namespace_map [ uri ] = prefix
compat_xml_etree_register_namespace = compat_etree_register_namespace
# compat_xpath, compat_etree_iterfind
if sys . version_info < ( 2 , 7 ) :
# Here comes the crazy part: In 2.6, if the xpath is a unicode,
# .//node does not match if a node is a direct child of . !
@ -2898,7 +2998,6 @@ if sys.version_info < (2, 7):
def __init__ ( self , root ) :
self . root = root
##
# Generate all matching objects.
def compat_etree_iterfind ( elem , path , namespaces = None ) :
@ -2933,13 +3032,15 @@ if sys.version_info < (2, 7):
else :
compat_xpath = lambda xpath : xpath
compat_etree_iterfind = lambda element , match : element . iterfind ( match )
compat_xpath = _IDENTITY
# compat_os_name
compat_os_name = os . _name if os . name == ' java ' else os . name
# compat_shlex_quote
if compat_os_name == ' nt ' :
def compat_shlex_quote ( s ) :
return s if re . match ( r ' ^[-_ \ w./]+$ ' , s ) else ' " %s " ' % s . replace ( ' " ' , ' \\ " ' )
@ -2954,6 +3055,7 @@ else:
return " ' " + s . replace ( " ' " , " ' \" ' \" ' " ) + " ' "
# compat_shlex.split
try :
args = shlex . split ( ' 中文 ' )
assert ( isinstance ( args , list )
@ -2969,6 +3071,7 @@ except (AssertionError, UnicodeEncodeError):
return list ( map ( lambda s : s . decode ( ' utf-8 ' ) , shlex . split ( s , comments , posix ) ) )
# compat_ord
def compat_ord ( c ) :
if isinstance ( c , int ) :
return c
@ -2976,6 +3079,7 @@ def compat_ord(c):
return ord ( c )
# compat_getenv, compat_os_path_expanduser, compat_setenv
if sys . version_info > = ( 3 , 0 ) :
compat_getenv = os . getenv
compat_expanduser = os . path . expanduser
@ -3063,6 +3167,22 @@ else:
compat_os_path_expanduser = compat_expanduser
# compat_os_makedirs
try :
os . makedirs ( ' . ' , exist_ok = True )
compat_os_makedirs = os . makedirs
except TypeError : # < Py3.2
from errno import EEXIST as _errno_EEXIST
def compat_os_makedirs ( name , mode = 0o777 , exist_ok = False ) :
try :
return os . makedirs ( name , mode = mode )
except OSError as ose :
if not ( exist_ok and ose . errno == _errno_EEXIST ) :
raise
# compat_os_path_realpath
if compat_os_name == ' nt ' and sys . version_info < ( 3 , 8 ) :
# os.path.realpath on Windows does not follow symbolic links
# prior to Python 3.8 (see https://bugs.python.org/issue9949)
@ -3076,6 +3196,7 @@ else:
compat_os_path_realpath = compat_realpath
# compat_print
if sys . version_info < ( 3 , 0 ) :
def compat_print ( s ) :
from . utils import preferredencoding
@ -3086,6 +3207,7 @@ else:
print ( s )
# compat_getpass_getpass
if sys . version_info < ( 3 , 0 ) and sys . platform == ' win32 ' :
def compat_getpass ( prompt , * args , * * kwargs ) :
if isinstance ( prompt , compat_str ) :
@ -3098,36 +3220,42 @@ else:
compat_getpass_getpass = compat_getpass
# compat_input
try :
compat_input = raw_input
except NameError : # Python 3
compat_input = input
# compat_kwargs
# Python < 2.6.5 require kwargs to be bytes
try :
def _testfunc ( x ) :
pass
_testfunc ( * * { ' x ' : 0 } )
( lambda x : x ) ( * * { ' x ' : 0 } )
except TypeError :
def compat_kwargs ( kwargs ) :
return dict ( ( bytes ( k ) , v ) for k , v in kwargs . items ( ) )
else :
compat_kwargs = lambda kwargs : kwargs
compat_kwargs = _IDENTITY
# compat_numeric_types
try :
compat_numeric_types = ( int , float , long , complex )
except NameError : # Python 3
compat_numeric_types = ( int , float , complex )
# compat_integer_types
try :
compat_integer_types = ( int , long )
except NameError : # Python 3
compat_integer_types = ( int , )
# compat_int
compat_int = compat_integer_types [ - 1 ]
# compat_socket_create_connection
if sys . version_info < ( 2 , 7 ) :
def compat_socket_create_connection ( address , timeout , source_address = None ) :
host , port = address
@ -3154,6 +3282,7 @@ else:
compat_socket_create_connection = socket . create_connection
# compat_contextlib_suppress
try :
from contextlib import suppress as compat_contextlib_suppress
except ImportError :
@ -3196,12 +3325,12 @@ except AttributeError:
# repeated .close() is OK, but just in case
with compat_contextlib_suppress ( EnvironmentError ) :
f . close ( )
popen . wait ( )
popen . wait ( )
# Fix https://github.com/ytdl-org/youtube-dl/issues/4223
# See http://bugs.python.org/issue9161 for what is broken
def ( ) :
def _ workaround_optparse_bug9161( ) :
op = optparse . OptionParser ( )
og = optparse . OptionGroup ( op , ' foo ' )
try :
@ -3220,9 +3349,10 @@ def workaround_optparse_bug9161():
optparse . OptionGroup . add_option = _compat_add_option
if hasattr ( shutil , ' get_terminal_size ' ) : # Python >= 3.3
compat_get_terminal_size = shutil . get_terminal_size
else :
# compat_shutil_get_terminal_size
try :
from shutil import get_terminal_size as compat_get_terminal_size # Python >= 3.3
except ImportError :
_terminal_size = collections . namedtuple ( ' terminal_size ' , [ ' columns ' , ' lines ' ] )
def compat_get_terminal_size ( fallback = ( 80 , 24 ) ) :
@ -3252,27 +3382,33 @@ else:
columns = _columns
if lines is None or lines < = 0 :
lines = _lines
return _terminal_size ( columns , lines )
compat_shutil_get_terminal_size = compat_get_terminal_size
# compat_itertools_count
try :
itertools . count ( start = 0 , step = 1 )
type ( itertools . count ( start = 0 , step = 1 ) )
compat_itertools_count = itertools . count
except TypeError : # Python 2.6
except TypeError : # Python 2.6 lacks step
def compat_itertools_count ( start = 0 , step = 1 ) :
while True :
yield start
start + = step
# compat_tokenize_tokenize
if sys . version_info > = ( 3 , 0 ) :
from tokenize import tokenize as compat_tokenize_tokenize
else :
from tokenize import generate_tokens as compat_tokenize_tokenize
# compat_struct_pack, compat_struct_unpack, compat_Struct
try :
struct . pack ( ' !I ' , 0 )
type ( struct . pack ( ' !I ' , 0 ) )
except TypeError :
# In Python 2.6 and 2.7.x < 2.7.7, struct requires a bytes argument
# See https://bugs.python.org/issue19099
@ -3304,8 +3440,10 @@ else:
compat_Struct = struct . Struct
# compat_map/filter() returning an iterator, supposedly the
# same versioning as for zip below
# builtins returning an iterator
# compat_map, compat_filter
# supposedly the same versioning as for zip below
try :
from future_builtins import map as compat_map
except ImportError :
@ -3314,6 +3452,8 @@ except ImportError:
except ImportError :
compat_map = map
# compat_filter, compat_filter_fns
try :
from future_builtins import filter as compat_filter
except ImportError :
@ -3321,7 +3461,11 @@ except ImportError:
from itertools import ifilter as compat_filter
except ImportError :
compat_filter = filter
# "Is this function one or maybe the other filter()?"
compat_filter_fns = tuple ( set ( ( filter , compat_filter ) ) )
# compat_zip
try :
from future_builtins import zip as compat_zip
except ImportError : # not 2.6+ or is 3.x
@ -3331,6 +3475,7 @@ except ImportError: # not 2.6+ or is 3.x
compat_zip = zip
# compat_itertools_zip_longest
# method renamed between Py2/3
try :
from itertools import zip_longest as compat_itertools_zip_longest
@ -3338,7 +3483,42 @@ except ImportError:
from itertools import izip_longest as compat_itertools_zip_longest
# new class in collections
# compat_abc_ABC
try :
from abc import ABC as compat_abc_ABC
except ImportError :
# Py < 3.4
from abc import ABCMeta as _ABCMeta
compat_abc_ABC = _ABCMeta ( str ( ' ABC ' ) , ( object , ) , { } )
# dict mixin used here
# like UserDict.DictMixin, without methods created by MutableMapping
class _DictMixin ( compat_abc_ABC ) :
def has_key ( self , key ) :
return key in self
# get(), clear(), setdefault() in MM
def iterkeys ( self ) :
return ( k for k in self )
def itervalues ( self ) :
return ( self [ k ] for k in self )
def iteritems ( self ) :
return ( ( k , self [ k ] ) for k in self )
# pop(), popitem() in MM
def copy ( self ) :
return type ( self ) ( self )
# update() in MM
# compat_collections_chain_map
# collections.ChainMap: new class
try :
from collections import ChainMap as compat_collections_chain_map
# Py3.3's ChainMap is deficient
@ -3394,19 +3574,22 @@ except ImportError:
def new_child ( self , m = None , * * kwargs ) :
m = m or { }
m . update ( kwargs )
return compat_collections_chain_map ( m , * self . maps )
# support inheritance !
return type ( self ) ( m , * self . maps )
@property
def parents ( self ) :
return compat_collections_chain_map ( * ( self . maps [ 1 : ] ) )
return type ( self ) ( * ( self . maps [ 1 : ] ) )
# compat_re_Pattern, compat_re_Match
# Pythons disagree on the type of a pattern (RegexObject, _sre.SRE_Pattern, Pattern, ...?)
compat_re_Pattern = type ( re . compile ( ' ' ) )
# and on the type of a match
compat_re_Match = type ( re . match ( ' a ' , ' a ' ) )
# compat_base64_b64decode
if sys . version_info < ( 3 , 3 ) :
def compat_b64decode ( s , * args , * * kwargs ) :
if isinstance ( s , compat_str ) :
@ -3418,6 +3601,7 @@ else:
compat_base64_b64decode = compat_b64decode
# compat_ctypes_WINFUNCTYPE
if platform . python_implementation ( ) == ' PyPy ' and sys . pypy_version_info < ( 5 , 4 , 0 ) :
# PyPy2 prior to version 5.4.0 expects byte strings as Windows function
# names, see the original PyPy issue [1] and the youtube-dl one [2].
@ -3436,6 +3620,7 @@ else:
return ctypes . WINFUNCTYPE ( * args , * * kwargs )
# compat_open
if sys . version_info < ( 3 , 0 ) :
# open(file, mode='r', buffering=- 1, encoding=None, errors=None, newline=None, closefd=True) not: opener=None
def compat_open ( file_ , * args , * * kwargs ) :
@ -3463,18 +3648,151 @@ except AttributeError:
def compat_datetime_timedelta_total_seconds ( td ) :
return ( td . microseconds + ( td . seconds + td . days * 24 * 3600 ) * 10 * * 6 ) / 10 * * 6
# optional decompression packages
# compat_brotli
# PyPi brotli package implements 'br' Content-Encoding
try :
import brotli as compat_brotli
except ImportError :
compat_brotli = None
# compat_ncompress
# PyPi ncompress package implements 'compress' Content-Encoding
try :
import ncompress as compat_ncompress
except ImportError :
compat_ncompress = None
# compat_zstandard
# PyPi zstandard package implements 'zstd' Content-Encoding (RFC 8878 7.2)
try :
import zstandard as compat_zstandard
except ImportError :
compat_zstandard = None
# compat_thread
try :
import _thread as compat_thread
except ImportError :
try :
import thread as compat_thread
except ImportError :
import dummy_thread as compat_thread
# compat_dict
# compat_builtins_dict
# compat_dict_items
if sys . version_info > = ( 3 , 6 ) :
compat_dict = compat_builtins_dict = dict
compat_dict_items = dict . items
else :
_get_ident = compat_thread . get_ident
class compat_dict ( compat_collections_abc . MutableMapping , _DictMixin , dict ) :
""" `dict` that preserves insertion order with interface like Py3.7+ """
_order = [ ] # default that should never be used
def __init__ ( self , * mappings_or_iterables , * * kwargs ) :
# order an unordered dict using a list of keys: actual Py 2.7+
# OrderedDict uses a doubly linked list for better performance
self . _order = [ ]
for arg in mappings_or_iterables :
self . __update ( arg )
if kwargs :
self . __update ( kwargs )
def __getitem__ ( self , key ) :
return dict . __getitem__ ( self , key )
def __setitem__ ( self , key , value ) :
try :
if key not in self . _order :
self . _order . append ( key )
dict . __setitem__ ( self , key , value )
except Exception :
if key in self . _order [ - 1 : ] and key not in self :
del self . _order [ - 1 ]
raise
def __len__ ( self ) :
return dict . __len__ ( self )
def __delitem__ ( self , key ) :
dict . __delitem__ ( self , key )
try :
# expected case, O(len(self)), but who dels anyway?
self . _order . remove ( key )
except ValueError :
pass
def __iter__ ( self ) :
for from_ in self . _order :
if from_ in self :
yield from_
def __del__ ( self ) :
for attr in ( ' _order ' , ) :
try :
delattr ( self , attr )
except Exception :
pass
def __repr__ ( self , _repr_running = { } ) :
# skip recursive items ...
call_key = id ( self ) , _get_ident ( )
if _repr_running . get ( call_key ) :
return ' ... '
_repr_running [ call_key ] = True
try :
return ' %s ( { %s }) ' % (
type ( self ) . __name__ ,
' , ' . join ( ' %r : %r ' % k_v for k_v in self . items ( ) ) )
finally :
del _repr_running [ call_key ]
# merge/update (PEP 584)
def __or__ ( self , other ) :
if not isinstance ( other , compat_collections_abc . Mapping ) :
return NotImplemented
new = type ( self ) ( self )
new . update ( other )
return new
def __ror__ ( self , other ) :
if not isinstance ( other , compat_collections_abc . Mapping ) :
return NotImplemented
new = type ( other ) ( other )
new . update ( self )
return new
def __ior__ ( self , other ) :
self . update ( other )
return self
# optimisations
def __reversed__ ( self ) :
for from_ in reversed ( self . _order ) :
if from_ in self :
yield from_
def __contains__ ( self , item ) :
return dict . __contains__ ( self , item )
# allow overriding update without breaking __init__
def __update ( self , * args , * * kwargs ) :
super ( compat_dict , self ) . update ( * args , * * kwargs )
compat_builtins_dict = dict
# Using the object's method, not dict's:
# an ordered dict's items can be returned unstably by unordered
# dict.items as if the method was not ((k, self[k]) for k in self)
compat_dict_items = lambda d : d . items ( )
legacy = [
' compat_HTMLParseError ' ,
@ -3491,6 +3809,7 @@ legacy = [
' compat_getpass ' ,
' compat_parse_qs ' ,
' compat_realpath ' ,
' compat_shlex_split ' ,
' compat_urllib_parse_parse_qs ' ,
' compat_urllib_parse_unquote ' ,
' compat_urllib_parse_unquote_plus ' ,
@ -3504,34 +3823,40 @@ legacy = [
__all__ = [
' compat_html_parser_HTMLParseError ' ,
' compat_html_parser_HTMLParser ' ,
' compat_Struct ' ,
' compat_abc_ABC ' ,
' compat_base64_b64decode ' ,
' compat_basestring ' ,
' compat_brotli ' ,
' compat_builtins_dict ' ,
' compat_casefold ' ,
' compat_chr ' ,
' compat_collections_abc ' ,
' compat_collections_chain_map ' ,
' compat_datetime_timedelta_total_seconds ' ,
' compat_http_cookiejar ' ,
' compat_http_cookiejar_Cookie ' ,
' compat_http_cookies ' ,
' compat_http_cookies_SimpleCookie ' ,
' compat_contextlib_suppress ' ,
' compat_ctypes_WINFUNCTYPE ' ,
' compat_datetime_timedelta_total_seconds ' ,
' compat_dict ' ,
' compat_dict_items ' ,
' compat_etree_fromstring ' ,
' compat_etree_iterfind ' ,
' compat_filter ' ,
' compat_filter_fns ' ,
' compat_get_terminal_size ' ,
' compat_getenv ' ,
' compat_getpass_getpass ' ,
' compat_html_entities ' ,
' compat_html_entities_html5 ' ,
' compat_html_parser_HTMLParseError ' ,
' compat_html_parser_HTMLParser ' ,
' compat_http_cookiejar ' ,
' compat_http_cookiejar_Cookie ' ,
' compat_http_cookies ' ,
' compat_http_cookies_SimpleCookie ' ,
' compat_http_client ' ,
' compat_http_server ' ,
' compat_input ' ,
' compat_int ' ,
' compat_integer_types ' ,
' compat_itertools_count ' ,
' compat_itertools_zip_longest ' ,
@ -3541,6 +3866,7 @@ __all__ = [
' compat_numeric_types ' ,
' compat_open ' ,
' compat_ord ' ,
' compat_os_makedirs ' ,
' compat_os_name ' ,
' compat_os_path_expanduser ' ,
' compat_os_path_realpath ' ,
@ -3550,13 +3876,14 @@ __all__ = [
' compat_register_utf8 ' ,
' compat_setenv ' ,
' compat_shlex_quote ' ,
' compat_sh lex_split ' ,
' compat_sh util_get_terminal_size ' ,
' compat_socket_create_connection ' ,
' compat_str ' ,
' compat_struct_pack ' ,
' compat_struct_unpack ' ,
' compat_subprocess_get_DEVNULL ' ,
' compat_subprocess_Popen ' ,
' compat_thread ' ,
' compat_tokenize_tokenize ' ,
' compat_urllib_error ' ,
' compat_urllib_parse ' ,
@ -3570,5 +3897,5 @@ __all__ = [
' compat_xml_etree_register_namespace ' ,
' compat_xpath ' ,
' compat_zip ' ,
' workaround_optparse_bug9161 ' ,
' compat_zstandard ' ,
]
dirkf