diff --git a/libs/six.py b/libs/six.py index 190c0239..89b2188f 100644 --- a/libs/six.py +++ b/libs/six.py @@ -1,6 +1,4 @@ -"""Utilities for writing code that runs on Python 2 and 3""" - -# Copyright (c) 2010-2015 Benjamin Peterson +# Copyright (c) 2010-2018 Benjamin Peterson # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal @@ -20,6 +18,8 @@ # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. +"""Utilities for writing code that runs on Python 2 and 3""" + from __future__ import absolute_import import functools @@ -29,7 +29,7 @@ import sys import types __author__ = "Benjamin Peterson " -__version__ = "1.10.0" +__version__ = "1.12.0" # Useful for very coarse version differentiation. @@ -241,6 +241,7 @@ _moved_attributes = [ MovedAttribute("map", "itertools", "builtins", "imap", "map"), MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"), MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"), + MovedAttribute("getoutput", "commands", "subprocess"), MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"), MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"), MovedAttribute("reduce", "__builtin__", "functools"), @@ -262,10 +263,11 @@ _moved_attributes = [ MovedModule("html_entities", "htmlentitydefs", "html.entities"), MovedModule("html_parser", "HTMLParser", "html.parser"), MovedModule("http_client", "httplib", "http.client"), + MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"), + MovedModule("email_mime_image", "email.MIMEImage", "email.mime.image"), MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"), MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"), MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"), - MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"), MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"), MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"), MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"), @@ -337,10 +339,12 @@ _urllib_parse_moved_attributes = [ MovedAttribute("quote_plus", "urllib", "urllib.parse"), MovedAttribute("unquote", "urllib", "urllib.parse"), MovedAttribute("unquote_plus", "urllib", "urllib.parse"), + MovedAttribute("unquote_to_bytes", "urllib", "urllib.parse", "unquote", "unquote_to_bytes"), MovedAttribute("urlencode", "urllib", "urllib.parse"), MovedAttribute("splitquery", "urllib", "urllib.parse"), MovedAttribute("splittag", "urllib", "urllib.parse"), MovedAttribute("splituser", "urllib", "urllib.parse"), + MovedAttribute("splitvalue", "urllib", "urllib.parse"), MovedAttribute("uses_fragment", "urlparse", "urllib.parse"), MovedAttribute("uses_netloc", "urlparse", "urllib.parse"), MovedAttribute("uses_params", "urlparse", "urllib.parse"), @@ -416,6 +420,8 @@ _urllib_request_moved_attributes = [ MovedAttribute("URLopener", "urllib", "urllib.request"), MovedAttribute("FancyURLopener", "urllib", "urllib.request"), MovedAttribute("proxy_bypass", "urllib", "urllib.request"), + MovedAttribute("parse_http_list", "urllib2", "urllib.request"), + MovedAttribute("parse_keqv_list", "urllib2", "urllib.request"), ] for attr in _urllib_request_moved_attributes: setattr(Module_six_moves_urllib_request, attr.name, attr) @@ -679,11 +685,15 @@ if PY3: exec_ = getattr(moves.builtins, "exec") def reraise(tp, value, tb=None): - if value is None: - value = tp() - if value.__traceback__ is not tb: - raise value.with_traceback(tb) - raise value + try: + if value is None: + value = tp() + if value.__traceback__ is not tb: + raise value.with_traceback(tb) + raise value + finally: + value = None + tb = None else: def exec_(_code_, _globs_=None, _locs_=None): @@ -699,19 +709,28 @@ else: exec("""exec _code_ in _globs_, _locs_""") exec_("""def reraise(tp, value, tb=None): - raise tp, value, tb + try: + raise tp, value, tb + finally: + tb = None """) if sys.version_info[:2] == (3, 2): exec_("""def raise_from(value, from_value): - if from_value is None: - raise value - raise value from from_value + try: + if from_value is None: + raise value + raise value from from_value + finally: + value = None """) elif sys.version_info[:2] > (3, 2): exec_("""def raise_from(value, from_value): - raise value from from_value + try: + raise value from from_value + finally: + value = None """) else: def raise_from(value, from_value): @@ -802,10 +821,14 @@ def with_metaclass(meta, *bases): # This requires a bit of explanation: the basic idea is to make a dummy # metaclass for one level of class instantiation that replaces itself with # the actual metaclass. - class metaclass(meta): + class metaclass(type): def __new__(cls, name, this_bases, d): return meta(name, bases, d) + + @classmethod + def __prepare__(cls, name, this_bases): + return meta.__prepare__(name, bases) return type.__new__(metaclass, 'temporary_class', (), {}) @@ -821,10 +844,71 @@ def add_metaclass(metaclass): orig_vars.pop(slots_var) orig_vars.pop('__dict__', None) orig_vars.pop('__weakref__', None) + if hasattr(cls, '__qualname__'): + orig_vars['__qualname__'] = cls.__qualname__ return metaclass(cls.__name__, cls.__bases__, orig_vars) return wrapper +def ensure_binary(s, encoding='utf-8', errors='strict'): + """Coerce **s** to six.binary_type. + + For Python 2: + - `unicode` -> encoded to `str` + - `str` -> `str` + + For Python 3: + - `str` -> encoded to `bytes` + - `bytes` -> `bytes` + """ + if isinstance(s, text_type): + return s.encode(encoding, errors) + elif isinstance(s, binary_type): + return s + else: + raise TypeError("not expecting type '%s'" % type(s)) + + +def ensure_str(s, encoding='utf-8', errors='strict'): + """Coerce *s* to `str`. + + For Python 2: + - `unicode` -> encoded to `str` + - `str` -> `str` + + For Python 3: + - `str` -> `str` + - `bytes` -> decoded to `str` + """ + if not isinstance(s, (text_type, binary_type)): + raise TypeError("not expecting type '%s'" % type(s)) + if PY2 and isinstance(s, text_type): + s = s.encode(encoding, errors) + elif PY3 and isinstance(s, binary_type): + s = s.decode(encoding, errors) + return s + + +def ensure_text(s, encoding='utf-8', errors='strict'): + """Coerce *s* to six.text_type. + + For Python 2: + - `unicode` -> `unicode` + - `str` -> `unicode` + + For Python 3: + - `str` -> `str` + - `bytes` -> decoded to `str` + """ + if isinstance(s, binary_type): + return s.decode(encoding, errors) + elif isinstance(s, text_type): + return s + else: + raise TypeError("not expecting type '%s'" % type(s)) + + + def python_2_unicode_compatible(klass): """ A decorator that defines __unicode__ and __str__ methods under Python 2.