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requests.utils
~~~~~~~~~~~~~~
This module provides utility functions that are used within Requests
that are also useful for external consumption.
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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 N( t getattrR( t
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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')])
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| S( sz 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.
s+ cannot encode objects that are not 2-tuplesN( R( RA R R RE RF RG t collectionst MappingR t list( RH ( ( s2 /usr/lib/python2.7/site-packages/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`
i it "( t _parse_list_headert unquote_header_valuet append( RH t resultt item( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt parse_list_header s $c C s i } x t | D]~ } d | k r5 d | | >> d = parse_dict_header('foo="is a fish", bar="as well"')
>>> type(d) is dict
True
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[('bar', 'as well'), ('foo', 'is a fish')]
If there is no value for a key it will be `None`:
>>> parse_dict_header('key_without_value')
{'key_without_value': None}
To create a header from the :class:`dict` again, use the
:func:`dump_header` function.
:param value: a string with a dict header.
:return: :class:`dict`
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$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`).
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c c s= d } x0 | t | k r8 | | | | !V| | 7} q Wd S( s Iterate over slices of a string.i N( R ( t stringt slice_lengtht pos( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt iter_slices\ s c C s t j d t g } t | j } | rc y t | j | SWqc t k
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:param r: Response object to get unicode content from.
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1. charset from content-type
2. fall back and replace all unicode characters
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Converts mask from /xx format to xxx.xxx.xxx.xxx
Example: if mask is 24 function returns 255.255.255.0
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Returns whether we should bypass proxies or not.
c S s( t j j | p' t j j | j S( N( R t environRo t upper( t k( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt s t no_proxyt Rx t ,R' i ( R R/ RW R0 R R R R~ t endswithR R R t gaierrorR ( R5 t get_proxyR R/ R t proxy_ipR: t bypass( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt should_bypass_proxies s*
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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.
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