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Checks proxy settings gathered from the environment, if specified, or the registry. N( R R R4 ( R/ ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyR O s c C s" t | d � r | j � } n | S( s/ Returns an internal sequence dictionary update.t items( t hasattrR5 ( t d( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt dict_to_sequence[ s c C s� d } d } t | d � r* t | � } n� t | d � rE | j } nm t | d � r� y | j � } Wn t j k rz q� Xt j | � j } d | j k r� t j d t � q� n t | d � rty | j � } Wn, t t f k r� | d k rq| } qqqtXt | d � rt| d k rty3 | j d d � | j � } | j | pId � Wqqt t f k rmd } qqXqtn | d k r�d } n t d | | � S( Ni t __len__t lent filenot bs% Requests has determined the content-length for this request using the binary size of the file: however, the file has been opened in text mode (i.e. without the 'b' flag in the mode). This may lead to an incorrect content-length. In Requests 3.0, support will be removed for files in text mode.t tellt seeki ( t NoneR6 R: R; t iot UnsupportedOperationt ost fstatt st_sizet modet warningst warnR R= R' t IOErrorR> t max( t ot total_lengtht current_positionR; ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt super_lend s@ c C se yGd d l m } m } d } x^ t D]V } y t j j d j | � � } Wn t k r_ d SXt j j | � r& | } Pq& q& W| d k r� d St | � } d } t | t � r� | j d � } n | j j | � d } yG | | � j | � } | r | d rd n d } | | | d f SWn# | t f k rE| rF� qFn XWn t t f k r`n Xd S( s; Returns the Requests tuple auth for a given url from netrc.i����( t netrct NetrcParseErrors ~/{0}Nt :t asciii i i ( RN RO R? t NETRC_FILESRB t patht expandusert formatt KeyErrort existsR t isinstanceR t decodet netlocR) t authenticatorsRH t ImportErrort AttributeError( t urlt raise_errorsRN RO t netrc_patht ft loct rit splitstrR/ R t login_i( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt get_netrc_auth� s8 c C s[ t | d d � } | rW t | t � rW | d d k rW | d d k rW t j j | � Sd S( s0 Tries to guess the filename of the given object.t namei t <i����t >N( t getattrR? RX R RB RS t basename( t objRg ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt guess_filename� s %c C sD | d k r d St | t t t t f � r: t d � � n t | � S( s� Take an object and test to see if it can be represented as a dictionary. 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')]) :rtype: OrderedDict s+ cannot encode objects that are not 2-tuplesN( R? RX R R t boolt intt ValueErrorR ( t value( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt from_key_val_list� s c C se | d k r d St | t t t t f � r: t d � � n t | t j � r[ | j � } n t | � S( s� 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. :rtype: list s+ cannot encode objects that are not 2-tuplesN( R? RX R R Rn Ro Rp t collectionst MappingR5 t list( Rq ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt to_key_val_list� s c C sh g } x[ t | � D]M } | d | d k o8 d k n rS t | d d !� } n | j | � q W| S( s 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` :rtype: list i i����t "( t _parse_list_headert unquote_header_valuet append( Rq t resultt item( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt parse_list_header s $c C s� i } x� t | � D]~ } d | k r5 d | | <q n | j d d � \ } } | d | d k ol d k n r� t | d d !� } n | | | <q W| S( s^ 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` :rtype: dict t =i i����Rw N( Rx R? R) Ry ( Rq R{ R| Rg ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt parse_dict_header1 s $c C sq | rm | d | d k o% d k n rm | d d !} | sN | d d k rm | j d d � j d d � Sn | S( s� Unquotes a header value. (Reversal of :func:`quote_header_value`). This does not use the real unquoting but what browsers are actually using for quoting. :param value: the header value to unquote. :rtype: str i i����Rw i i s \\s \s \"( R+ ( Rq t is_filename( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyRy T s * c C s+ i } x | D] } | j | | j <q W| S( s� Returns a key/value dictionary from a CookieJar. :param cj: CookieJar object to extract cookies from. :rtype: dict ( Rq Rg ( t cjt cookie_dictt cookie( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt dict_from_cookiejarm s c C s t | | � S( s� Returns a CookieJar from a key/value dictionary. :param cj: CookieJar to insert cookies into. :param cookie_dict: Dict of key/values to insert into CookieJar. :rtype: CookieJar ( R ( R� R� ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt add_dict_to_cookiejar| s c C sv t j d t � t j d d t j �} t j d d t j �} t j d � } | j | � | j | � | j | � S( sl Returns encodings from given content string. :param content: bytestring to extract encodings from. s� In requests 3.0, get_encodings_from_content will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)s! <meta.*?charset=["\']*(.+?)["\'>]t flagss+ <meta.*?content=["\']*;?charset=(.+?)["\'>]s$ ^<\?xml.*?encoding=["\']*(.+?)["\'>]( RF RG t DeprecationWarningR, t compileR. t findall( t contentt charset_ret pragma_ret xml_re( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt get_encodings_from_content� s c C s_ | j d � } | s d St j | � \ } } d | k rK | d j d � Sd | k r[ d Sd S( s} Returns encodings from given HTTP Header Dict. :param headers: dictionary to extract encoding from. :rtype: str s content-typet charsets '"t texts ISO-8859-1N( t getR? t cgit parse_headert strip( t headerst content_typet params( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt get_encoding_from_headers� s c 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 t �} | r� | Vn d S( s Stream decodes a iterator.Nt errorsR+ t t final( t encodingR? t codecst getincrementaldecoderRY R* ( t iteratort rR| t decodert chunkt rv( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt stream_decode_response_unicode� s c c sd d } | d k s | d k r- t | � } n x0 | t | � k r_ | | | | !V| | 7} q0 Wd S( s Iterate over slices of a string.i N( R? R: ( t stringt slice_lengtht pos( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt iter_slices� s c C s� t j d t � g } t | j � } | rc y t | j | � SWqc t k r_ | j | � qc Xn y t | j | d d �SWn t k r� | j SXd S( s� Returns the requested content back in unicode. :param r: Response object to get unicode content from. Tried: 1. charset from content-type 2. fall back and replace all unicode characters :rtype: str s� In requests 3.0, get_unicode_from_response will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)R� R+ N( RF RG R� R� R� R R� t UnicodeErrorRz t TypeError( R� t tried_encodingsR� ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt get_unicode_from_response� s t4 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzs 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 | � � n X| t k r� | | | d | | <q� d | | | | <q% d | | | | <q% Wd j | � S( s� Un-escape any percent-escape sequences in a URI that are unreserved characters. This leaves all reserved, illegal and non-ASCII bytes encoded. :rtype: str t %i i i i s% Invalid percent-escape sequence: '%s'R� ( R) t rangeR: t isalnumt chrRo Rp R t UNRESERVED_SETt join( t urit partst it ht c( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt unquote_unreserved� s c C sK d } d } y t t | � d | �SWn t k rF t | d | �SXd S( s� 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. :rtype: str s !#$%&'()*+,/:;=?@[]~s !#$&'()*+,/:;=?@[]~t safeN( R R� R ( R� t safe_with_percentt safe_without_percent( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt requote_uri s c 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( s� This function allows you to check if an 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 :rtype: bool s =Li t /( t structt unpackt sockett inet_atonR) t dotted_netmaskRo ( t ipt nett ipaddrt netaddrt bitst netmaskt network( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt address_in_network# s +#c C s/ d d d | >d A} t j t j d | � � S( s� Converts mask from /xx format to xxx.xxx.xxx.xxx Example: if mask is 24 function returns 255.255.255.0 :rtype: str I���� i i s >I( R� t inet_ntoaR� t pack( t maskR� ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyR� 2 s c C s- y t j | � Wn t j k r( t SXt S( s :rtype: bool ( R� R� t errorR( R* ( t string_ip( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt is_ipv4_address= s c C s� | j d � d k r� y t | j d � d � } Wn t k rF t SX| d k s_ | d k rc t Sy t j | j d � d � Wq� t j k r� t SXn t St S( sV Very simple check of the cidr format in no_proxy variable. :rtype: bool R� i i i ( t countRo R) Rp R( R� R� R� R* ( t string_networkR� ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt is_valid_cidrH s c c st | d k } | r4 t j j | � } | t j | <n z d VWd | ro | d k r_ t j | =qo | t j | <n Xd S( s� Set the environment variable 'env_name' to 'value' Save previous value, yield, and then restore the previous value stored in the environment variable 'env_name'. If 'value' is None, do nothingN( R? RB t environR� ( t env_nameRq t value_changedt old_value( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt set_environ` s c C sc d � } | } | d k r* | d � } n t | � j } | r d � | j d d � j d � D� } | j d � d } t | � r� x� | D]8 } t | � r� t | | � r� t Sq� | | k r� t Sq� Wq x@ | D]5 } | j | � s| j d � d j | � r� t Sq� Wn t d | � �8 y t | � } Wn t t j f k rNt } n XWd QX| r_t St S( sL Returns whether we should bypass proxies or not. :rtype: bool c S s( t j j | � p' t j j | j � � S( N( RB R� R� t upper( t k( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt <lambda>| R� t no_proxyc s s | ] } | r | Vq d S( N( ( t .0R/ ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pys <genexpr>� s t R� t ,RP i N( R? R RZ R+ R) R� R� R� R* t endswithR� R R� R� t gaierrorR( ( R^ R� t get_proxyt no_proxy_argRZ R� t proxy_ipR/ t bypass( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt should_bypass_proxiesv s4 % + c C s! t | d | �r i St � Sd S( sA Return a dict of environment proxies. :rtype: dict R� N( R� R ( R^ R� ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt get_environ_proxies� s c C s� | p i } t | � } | j d k rC | j | j | j d � � S| j d | j | j d | j d g } d } x( | D] } | | k rz | | } Pqz qz W| S( s� Select a proxy for the url, if applicable. :param url: The url being for the request :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs t alls ://s all://N( R t hostnameR? R� t scheme( R^ t proxiest urlpartst proxy_keyst proxyt proxy_key( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt select_proxy� s s python-requestsc C s d | t f S( sO Return a string representing the default user agent. :rtype: str s %s/%s( R ( Rg ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt default_user_agent� s c C s2 t i t � d 6d j d � d 6d d 6d d 6� S( s9 :rtype: requests.structures.CaseInsensitiveDict s User-Agents , t gzipt deflates Accept-Encodings */*t Accepts keep-alivet Connection( R� R� ( R R� R� ( ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt default_headers� s c C s� g } d } x� t j d | � D]� } y | j d d � \ } } Wn t k ra | d } } n Xi | j d � d 6} xa | j d � D]P } y | j d � \ } } Wn t k r� Pn X| j | � | | j | � <q� W| j | � q W| S( s� 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" :rtype: list s '"s , *<R i R� s <> '"R^ R~ ( R, R) Rp R� Rz ( Rq t linkst replace_charst valR^ R� t linkt paramt key( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt parse_header_links� s s RQ i i c C s | d } | t j t j f k r& d S| d t j k r= d S| d t j t j f k r] 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 t k r� d S| d t k r� d Sn d S( s :rtype: str i s utf-32i s utf-8-sigi s utf-16i s utf-8Ns utf-16-bei s utf-16-les utf-32-bes utf-32-le( R� t BOM_UTF32_LEt BOM_UTF32_BEt BOM_UTF8t BOM_UTF16_LEt BOM_UTF16_BER� t _nullt _null2t _null3R? ( t datat samplet nullcount( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt guess_json_utf s* c C sS t | | � \ } } } } } } | s7 | | } } n t | | | | | | f � S( s� 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. :rtype: str ( R R ( R^ t new_schemeR� RZ RS R� t queryt fragment( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt prepend_scheme_if_needed1 s !c C sR t | � } y" t | j � t | j � f } Wn t t f k rM d } n X| S( s{ Given a url with authentication components, extract them into a tuple of username,password. :rtype: (str,str) R� ( R� R� ( R R t usernamet passwordR] R� ( R^ t parsedt auth( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt get_auth_from_urlB s " s ^\S[^\r\n]*$|^$c C s� | \ } } t | t � r$ t } n t } y& | j | � sO t d | � � n Wn0 t k r� t d | | t | � f � � n Xd S( s� Verifies that header value is a string which doesn't contain leading whitespace or return characters. This prevents unintended header injection. :param header: tuple, in the format (name, value). s7 Invalid return character or leading space in header: %ss> Value for header {%s: %s} must be of type str or bytes, not %sN( RX R t _CLEAN_HEADER_REGEX_BYTEt _CLEAN_HEADER_REGEX_STRR- R R� t type( t headerRg Rq t pat( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt check_header_validityW s c C sf t | � \ } } } } } } | s4 | | } } n | j d d � d } t | | | | | d f � S( sW Given a url remove the fragment and the authentication part. :rtype: str t @i i����R� ( R t rsplitR ( R^ R� RZ RS R� R R ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt urldefragauthl s c C s} t | j d d � } | d k rm t | j t � rm y | | j � Wqy t t f k ri t d � � qy Xn t d � � d S( sf Move file pointer back to its recorded starting position so it can be read again on redirect. R> s; An error occurred when rewinding request body for redirect.s+ Unable to rewind request body for redirect.N( Rj t bodyR? RX t _body_positionR RH R' R ( t prepared_requestt body_seek( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt rewind_body} s ( s .netrcR (` t __doc__R� R� Rs t contextlibR@ RB t platformR, R� R� RF R R� R t _internal_utilsR t compatR Rx R R R R R R R R R R R R R R t cookiesR t structuresR t exceptionsR R R R RR t wheret DEFAULT_CA_BUNDLE_PATHt DEFAULT_PORTSt systemR4 R8 RM R( Rf Rm Rr Rv R} R Ry R� R� R� R� R� R� R� t frozensetR� R� R� R� R� R� R� t contextmanagerR� R� R? R� R� R� R� R� t encodeR R R R R R R� R R R R R! ( ( ( s> /usr/lib/python2.7/site-packages/pip/_vendor/requests/utils.pyt <module> s� ^" ! = 3 # % 9 "
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