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Unless it can not be represented as such, return an OrderedDict, e.g., :: >>> from_key_val_list([('key', 'val')]) OrderedDict([('key', 'val')]) >>> from_key_val_list('string') ValueError: need more than 1 value to unpack >>> from_key_val_list({'key': 'val'}) OrderedDict([('key', 'val')]) u+ cannot encode objects that are not 2-tuplesN( u Noneu isinstanceu stru bytesu boolu intu ValueErroru OrderedDict( u value( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu from_key_val_listy s u from_key_val_listc C se | d k r d St | t t t t f � r: t d � � n t | t j � r[ | j � } n t | � S( uz Take an object and test to see if it can be represented as a dictionary. If it can be, return a list of tuples, e.g., :: >>> to_key_val_list([('key', 'val')]) [('key', 'val')] >>> to_key_val_list({'key': 'val'}) [('key', 'val')] >>> to_key_val_list('string') ValueError: cannot encode objects that are not 2-tuples. u+ cannot encode objects that are not 2-tuplesN( u Noneu isinstanceu stru bytesu boolu intu ValueErroru collectionsu Mappingu itemsu list( u value( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu to_key_val_list� s u to_key_val_listc C sw g } xj t | � D]\ } | d d � | d d � k oD d k n rb t | d d � � } n | j | � q W| S( u� Parse lists as described by RFC 2068 Section 2. In particular, parse comma-separated lists where the elements of the list may include quoted-strings. A quoted-string could contain a comma. A non-quoted string could have quotes in the middle. Quotes are removed automatically after parsing. It basically works like :func:`parse_set_header` just that items may appear multiple times and case sensitivity is preserved. The return value is a standard :class:`list`: >>> parse_list_header('token, "quoted value"') ['token', 'quoted value'] To create a header from the :class:`list` again, use the :func:`dump_header` function. :param value: a string with a list header. :return: :class:`list` Ni u "i����i����( u _parse_list_headeru unquote_header_valueu append( u valueu resultu item( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu parse_list_header� s 0u parse_list_headerc C s� i } x� t | � D]� } d | k r5 d | | <q n | j d d � \ } } | d d � | d d � k ox d k n r� t | d d � � } n | | | <q W| S( uM Parse lists of key, value pairs as described by RFC 2068 Section 2 and convert them into a python dict: >>> d = parse_dict_header('foo="is a fish", bar="as well"') >>> type(d) is dict True >>> sorted(d.items()) [('bar', 'as well'), ('foo', 'is a fish')] If there is no value for a key it will be `None`: >>> parse_dict_header('key_without_value') {'key_without_value': None} To create a header from the :class:`dict` again, use the :func:`dump_header` function. :param value: a string with a dict header. :return: :class:`dict` u =i Nu "i����i����( u _parse_list_headeru Noneu splitu unquote_header_value( u valueu resultu itemu name( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu parse_dict_header� s 0u parse_dict_headerc C sz | rv | d | d k o% d k n rv | d d � } | sW | d d � d k rv | j d d � j d d � Sn | S( u� Unquotes a header value. (Reversal of :func:`quote_header_value`). This does not use the real unquoting but what browsers are actually using for quoting. :param value: the header value to unquote. i i u "Ni u \\u \u \"i����i����( u replace( u valueu is_filename( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu unquote_header_value� s * u unquote_header_valuec C s+ i } x | D] } | j | | j <q W| S( uo Returns a key/value dictionary from a CookieJar. :param cj: CookieJar object to extract cookies from. ( u valueu name( u cju cookie_dictu cookie( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu dict_from_cookiejar s u dict_from_cookiejarc C s t | � } | j | � | S( u� Returns a CookieJar from a key/value dictionary. :param cj: CookieJar to insert cookies into. :param cookie_dict: Dict of key/values to insert into CookieJar. ( u cookiejar_from_dictu update( u cju cookie_dictu cj2( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu add_dict_to_cookiejar s u add_dict_to_cookiejarc C sf t j d d t j �} t j d d t j �} t j d � } | j | � | j | � | j | � S( ul Returns encodings from given content string. :param content: bytestring to extract encodings from. u! <meta.*?charset=["\']*(.+?)["\'>]u flagsu+ <meta.*?content=["\']*;?charset=(.+?)["\'>]u$ ^<\?xml.*?encoding=["\']*(.+?)["\'>]( u reu compileu Iu findall( u contentu charset_reu pragma_reu xml_re( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu get_encodings_from_content s u get_encodings_from_contentc C s_ | j d � } | s d St j | � \ } } d | k rK | d j d � Sd | k r[ d Sd S( um Returns encodings from given HTTP Header Dict. :param headers: dictionary to extract encoding from. u content-typeu charsetu '"u textu ISO-8859-1N( u getu Noneu cgiu parse_headeru strip( u headersu content_typeu params( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu get_encoding_from_headers, s u get_encoding_from_headersc c s� | j d k r) x | D] } | Vq Wd St j | j � d d � } x+ | D]# } | j | � } | rK | VqK qK W| j d d d �} | r� | Vn d S( u Stream decodes a iterator.Nu errorsu replaces u finalT( u encodingu Noneu codecsu getincrementaldecoderu decodeu True( u iteratoru ru itemu decoderu chunku rv( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu stream_decode_response_unicode@ s u stream_decode_response_unicodec c s@ d } x3 | t | � k r; | | | | � V| | 7} q Wd S( u Iterate over slices of a string.i N( u len( u stringu slice_lengthu pos( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu iter_slicesR s u iter_slicesc C s� g } t | j � } | rT y t | j | � SWqT t k rP | j | � YqT Xn y t | j | d d �SWn t k r� | j SYn Xd S( u Returns the requested content back in unicode. :param r: Response object to get unicode content from. Tried: 1. charset from content-type 2. every encodings from ``<meta ... charset=XXX>`` 3. fall back and replace all unicode characters u errorsu replaceN( u get_encoding_from_headersu headersu stru contentu UnicodeErroru appendu TypeError( u ru tried_encodingsu encoding( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu get_unicode_from_responseZ s u get_unicode_from_responseu4 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzu 0123456789-._~c C s� | j d � } x� t d t | � � D]� } | | d d � } t | � d k r� | j � r� y t t | d � � } Wn" t k r� t d | � � Yn X| t k r� | | | d d � | | <q� d | | | | <q% d | | | | <q% Wd j | � S( u� Un-escape any percent-escape sequences in a URI that are unreserved characters. This leaves all reserved, illegal and non-ASCII bytes encoded. u %i i i i u% Invalid percent-escape sequence: '%s'Nu ( u splitu rangeu lenu isalnumu chru intu ValueErroru InvalidURLu UNRESERVED_SETu join( u uriu partsu iu hu c( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu unquote_unreserved� s u unquote_unreservedc C s t t | � d d �S( u� Re-quote the given URI. This function passes the given URI through an unquote/quote cycle to ensure that it is fully and consistently quoted. u safeu !#$%&'()*+,/:;=?@[]~( u quoteu unquote_unreserved( u uri( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu requote_uri� s u requote_uric C s� t j d t j | � � d } | j d � \ } } t j d t j t t | � � � � d } t j d t j | � � d | @} | | @| | @k S( u� This function allows you to check if on IP belongs to a network subnet Example: returns True if ip = 192.168.1.1 and net = 192.168.1.0/24 returns False if ip = 192.168.1.1 and net = 192.168.100.0/24 u =Li u /( u structu unpacku socketu inet_atonu splitu dotted_netmasku int( u ipu netu ipaddru netaddru bitsu netmasku network( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu address_in_network� s +#u address_in_networkc C s/ d d d | >d A} t j t j d | � � S( ut Converts mask from /xx format to xxx.xxx.xxx.xxx Example: if mask is 24 function returns 255.255.255.0 l �� i i u >I( u socketu inet_ntoau structu pack( u masku bits( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu dotted_netmask� s u dotted_netmaskc C s1 y t j | � Wn t j k r, d SYn Xd S( NFT( u socketu inet_atonu erroru Falseu True( u string_ip( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu is_ipv4_address� s u is_ipv4_addressc C s� | j d � d k r� y t | j d � d � } Wn t k rJ d SYn X| d k sc | d k rg d Sy t j | j d � d � Wq� t j k r� d SYq� Xn d Sd S( u9 Very simple check of the cidr format in no_proxy variableu /i i i FT( u countu intu splitu ValueErroru Falseu socketu inet_atonu erroru True( u string_networku mask( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu is_valid_cidr� s u is_valid_cidrc C s" d d � } | d � } t | � j } | r� | j d d � j d � } | j d � d } t | � r� xs | D]( } t | � rn t | | � r� d Sqn qn Wq� x@ | D]5 } | j | � s� | j d � d j | � r� d Sq� Wn y t | � } Wn! t t j f k rd } Yn X| r d Sd S( u: Returns whether we should bypass proxies or not. c S s( t j j | � p' t j j | j � � S( N( u osu environu getu upper( u k( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu <lambda>� s u' should_bypass_proxies.<locals>.<lambda>u no_proxyu u u ,u :i TF( u urlparseu netlocu replaceu splitu is_ipv4_addressu is_valid_cidru address_in_networku Trueu endswithu proxy_bypassu TypeErroru socketu gaierroru False( u urlu get_proxyu no_proxyu netlocu ipu proxy_ipu hostu bypass( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu should_bypass_proxies� s* + u should_bypass_proxiesc C s t | � r i St � Sd S( u% Return a dict of environment proxies.N( u should_bypass_proxiesu getproxies( u url( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu get_environ_proxies s u get_environ_proxiesu python-requestsc C s8 t j � } | d k r' t j � } n� | d k r� d t j j t j j t j j f } t j j d k r� d j | t j j g � } q� n< | d k r� t j � } n! | d k r� t j � } n d } y t j � } t j � } Wn t k rd } d } Yn Xd j d | t f d | | f d | | f g � S( u4 Return a string representing the default user agent.u CPythonu PyPyu %s.%s.%su finalu u Jythonu IronPythonu Unknownu u %s/%s( u platformu python_implementationu python_versionu sysu pypy_version_infou majoru minoru microu releaselevelu joinu systemu releaseu IOErroru __version__( u nameu _implementationu _implementation_versionu p_systemu p_release( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu default_user_agent s. ! u default_user_agentc C s+ t i t � d 6d j d � d 6d d 6� S( Nu User-Agentu , u gzipu deflateu Accept-Encodingu */*u Accept( u gzipu deflate( u CaseInsensitiveDictu default_user_agentu join( ( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu default_headers) s u default_headersc C s� g } d } x� | j d � D]� } y | j d d � \ } } Wn t k r_ | d } } Yn Xi } | j d � | d <xb | j d � D]Q } y | j d � \ } } Wn t k r� PYn X| j | � | | j | � <q� W| j | � q W| S( u� Return a dict of parsed link headers proxies. i.e. Link: <http:/.../front.jpeg>; rel=front; type="image/jpeg",<http://.../back.jpeg>; rel=back;type="image/jpeg" u '"u ,u ;i u u <> '"u urlu =( u splitu ValueErroru stripu append( u valueu linksu replace_charsu valu urlu paramsu linku paramu key( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu parse_header_links1 s" u parse_header_linksu u asciii i c C s | d d � } | t j t j f k r, d S| d d � t j k rI d S| d d � t j t j f k ro d S| j t � } | d k r� d S| d k r� | d d d � t k r� d S| d d d � t k r� d Sn | d k r| d d � t k r� d S| d d � t k rd Sn d S( Ni u utf-32i u utf-8-sigi u utf-16i u utf-8u utf-16-bei u utf-16-leu utf-32-beu utf-32-le( u codecsu BOM_UTF32_LEu BOM32_BEu BOM_UTF8u BOM_UTF16_LEu BOM_UTF16_BEu countu _nullu _null2u _null3u None( u datau sampleu nullcount( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu guess_json_utfY s* " u guess_json_utfc C sS t | | � \ } } } } } } | s7 | | } } n t | | | | | | f � S( u� Given a URL that may or may not have a scheme, prepend the given scheme. Does not replace a present scheme with the one provided as an argument.( u urlparseu urlunparse( u urlu new_schemeu schemeu netlocu pathu paramsu queryu fragment( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu prepend_scheme_if_neededv s !u prepend_scheme_if_neededc C sS t | � } y" t | j � t | j � f } Wn t t f k rN d } Yn X| S( u_ Given a url with authentication components, extract them into a tuple of username,password.u ( u u ( u urlparseu unquoteu usernameu passwordu AttributeErroru TypeError( u urlu parsedu auth( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu get_auth_from_url� s " u get_auth_from_urlc C sI d } t | t � r | } n' t r6 | j | � } n | j | � } | S( u� Given a string object, regardless of type, returns a representation of that string in the native string type, encoding and decoding where necessary. This assumes ASCII unless told otherwise. N( u Noneu isinstanceu builtin_stru is_py2u encodeu decode( u stringu encodingu out( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu to_native_string� s u to_native_string( u .netrcu _netrcF(M u __doc__u cgiu codecsu collectionsu iou osu platformu reu sysu socketu structu u __version__u certsu compatu parse_http_listu _parse_list_headeru quoteu urlparseu bytesu stru OrderedDictu unquoteu is_py2u builtin_stru getproxiesu proxy_bypassu urlunparseu cookiesu RequestsCookieJaru cookiejar_from_dictu structuresu CaseInsensitiveDictu exceptionsu InvalidURLu _hush_pyflakesu NETRC_FILESu whereu DEFAULT_CA_BUNDLE_PATHu dict_to_sequenceu super_lenu get_netrc_authu guess_filenameu from_key_val_listu to_key_val_listu parse_list_headeru parse_dict_headeru Falseu unquote_header_valueu dict_from_cookiejaru add_dict_to_cookiejaru get_encodings_from_contentu get_encoding_from_headersu stream_decode_response_unicodeu iter_slicesu get_unicode_from_responseu frozensetu UNRESERVED_SETu unquote_unreservedu requote_uriu address_in_networku dotted_netmasku is_ipv4_addressu is_valid_cidru should_bypass_proxiesu get_environ_proxiesu default_user_agentu default_headersu parse_header_linksu encodeu _nullu _null2u _null3u guess_json_utfu prepend_scheme_if_neededu get_auth_from_urlu to_native_string( ( ( u3 /tmp/pip-zej_zi-build/pip/_vendor/requests/utils.pyu <module> sr L . 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