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See the following document for more info on URLs:
"Names and Addresses, URIs, URLs, URNs, URCs", at
http://www.w3.org/pub/WWW/Addressing/Overview.html
See also the HTTP spec (from which the error codes are derived):
"HTTP - Hypertext Transfer Protocol", at
http://www.w3.org/pub/WWW/Protocols/
Related standards and specs:
- RFC1808: the "relative URL" spec. (authoritative status)
- RFC1738 - the "URL standard". (authoritative status)
- RFC1630 - the "URI spec". (informational status)
The object returned by URLopener().open(file) will differ per
protocol. All you know is that is has methods read(), readline(),
readlines(), fileno(), close() and info(). The read*(), fileno()
and close() methods work like those of open files.
The info() method returns a mimetools.Message object which can be
used to query various info about the object, if available.
(mimetools.Message objects are queried with the getheader() method.)
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c C si | j � } | d d k rB | d d k rB | d d !j � } n | d d k re | d j � } n | S( s8 unwrap('<URL:type://host/path>') --> 'type://host/path'.i t <i����t >i s URL:( R� ( R' ( ( s /usr/lib64/python2.7/urllib.pyR ! s c C sv t d k r* d d l } | j d � a n t j | � } | rl | j d � } | j � | t | � d f Sd | f S( s: splittype('type:opaquestring') --> 'type', 'opaquestring'.i����Ns
^([^/:]+):i ( t _typeprogR$ R� t compileR� t groupR� Rs ( R' R� R� R ( ( s /usr/lib64/python2.7/urllib.pyR * s c C s� t d k r$ t j d t j � a n t j | � } | r� | j d � } | j d � } | rz | j d � rz d | } n | | f Sd | f S( s; splithost('//host[:port]/path') --> 'host[:port]', '/path'.s //([^/#?]*)(.*)i i R� N( t _hostprogR$ R� RS t DOTALLR� RT R� ( R' R� t host_portRm ( ( s /usr/lib64/python2.7/urllib.pyR 8 s
c C sY t d k r* d d l } | j d � a n t j | � } | rO | j d d � Sd | f S( sJ splituser('user[:passwd]@host[:port]') --> 'user[:passwd]', 'host[:port]'.i����Ns ^(.*)@(.*)$i i ( t _userprogR$ R� RS R� RT ( Re R� R� ( ( s /usr/lib64/python2.7/urllib.pyR H s c C s_ t d k r0 d d l } | j d | j � a n t j | � } | rU | j d d � S| d f S( s/ splitpasswd('user:passwd') -> 'user', 'passwd'.i����Ns ^([^:]*):(.*)$i i ( t _passwdprogR$ R� RS t SR� RT ( R� R� R� ( ( s /usr/lib64/python2.7/urllib.pyR T s c C sY t d k r* d d l } | j d � a n t j | � } | rO | j d d � S| d f S( s* splitport('host:port') --> 'host', 'port'.i����Ns ^(.*):([0-9]+)$i i ( t _portprogR$ R� RS R� RT ( Re R� R� ( ( s /usr/lib64/python2.7/urllib.pyR a s c C s� t d k r* d d l } | j d � a n t j | � } | r� | j d d � \ } } y" | sl t d � n t | � } Wn t k
r� d } n X| | f S| | f S( s� Split host and port, returning numeric port.
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r=| d � | | � q� Xq� Wd j | � S( s" unquote('abc%20def') -> 'abc def'.t %i i i t latin1Rj ( RJ t _asciireR� RK t rangeRs R R� t decodeR� t _hextochrt KeyError( t st bitst resRK R� t item( ( s /usr/lib64/python2.7/urllib.pyR � s.
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t | | � � S( s quote('abc def') -> 'abc%20def'
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the following reserved characters.
reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" |
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but not necessarily in all of them.
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s None object cannot be quotedRj N( R$ t TypeErrort always_safeR. Rn t _safe_mapt copyt updatet __getitem__t rstripR� t map( Ro RN t cachekeyt quotert safe_mapt c( ( s /usr/lib64/python2.7/urllib.pyR � s
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t itemsi s1 not a valid non-string sequence or mapping objectR� RL RW t &( R< R� Rs R� t tupleRu R] R^ R R� RK RJ RM R� ( t queryt doseqt tyt vat tbt lR� R� t elt( ( s /usr/lib64/python2.7/urllib.pyR
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i����t _proxyt REQUEST_METHODR� N( RB t environR� R� t popR$ ( R" Rg R� ( ( s /usr/lib64/python2.7/urllib.pyt getproxies_environmentL s
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