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requests.utils
~~~~~~~~~~~~~~
This module provides utility functions that are used within Requests
that are also useful for external consumption.
N ) __version__)certs)to_native_string)parse_http_list)quoteurlparsebytesstr OrderedDictunquote
getproxies proxy_bypass
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integer_typesis_py3proxy_bypass_environmentgetproxies_environment)cookiejar_from_dict)CaseInsensitiveDict)
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|| t j r~d S q~W dS )Nr z;Software\Microsoft\Windows\CurrentVersion\Internet SettingsZ ProxyEnableZ
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r/ c C s t rt| S t| S dS )zReturn True, if the host should be bypassed.
Checks proxy settings gathered from the environment, if specified,
or the registry.
N)r r r/ )r, r- r- r. r O s r c C s t | dr| j } | S )z/Returns an internal sequence dictionary update.items)hasattrr0 )dr- r- r. dict_to_sequence[ s
r3 c C s2 d }d}t | dr t| }nbt | dr.| j}nPt | dr~y | j }W n tjk
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Nr __len__lenfilenoba% 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.tellseek )r1 r5 r6 ioUnsupportedOperationosfstatst_sizemodewarningswarnr r8 r& IOErrorr9 max)oZ total_lengthZcurrent_positionr6 r- r- r. super_lend s@
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r Y nX dS ) z;Returns the Requests tuple auth for a given url from netrc.r )netrcNetrcParseErrorNz~/{0} :asciir r: )rG rH NETRC_FILESr= path
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rY c C sB t | dd}|r>t|tr>|d dkr>|d dkr>tjj|S dS )z0Tries to guess the filename of the given object.nameNr <r >)getattrrQ r r= rL basename)objrZ r- r- r. guess_filename s ra c C s. | dkr dS t | ttttfr&tdt| S )a 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
Nz+cannot encode objects that are not 2-tuples)rQ r
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ValueErrorr )valuer- r- r. from_key_val_list s
rf c C sB | dkr dS t | ttttfr&tdt | tjr:| j } t | S )a 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
Nz+cannot encode objects that are not 2-tuples)
rQ r
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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
Nr "r] r] )_parse_list_headerunquote_header_valueappend)re resultitemr- r- r. parse_list_header s (rq c C s| i }xrt | D ]f}d|kr$d||< q|jdd\}} | dd | dd koVdkn rlt| dd } | ||< qW |S )a^ 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`
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rt td| Y nX |tkr||| dd ||< qd|| ||< qd|| ||< qW dj |S ) zUn-escape any percent-escape sequences in a URI that are unreserved
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r4 t | |dS X dS )zRe-quote the given URI.
This function passes the given URI through an unquote/quote cycle to
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z=Lr /)structunpacksocket inet_atonr' dotted_netmaskrc )ipZnetZipaddrZnetaddrbitsZnetmaskZnetworkr- r- r. address_in_network# s
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value_changedZ old_valuer- r- r. set_environ` s
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r P Y nX | j|||j|< qhW |j| qW |S ) zReturn 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"
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z '"z, *<r r r rV z<> '"rr )r) r' rd r rn ) re ZlinksZ
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S |d dd tkrd S |dkr|dd t krd
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N zutf-32r z utf-8-sigr: zutf-16r zutf-8z utf-16-ber z utf-16-lez utf-32-bez utf-32-le)
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r< d}Y nX |S )z{Given a url with authentication components, extract them into a tuple of
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r s ^\S[^\r\n]*$|^$z^\S[^\r\n]*$|^$c C sf | \}}t |trt}nt}y|j|s4td| W n* tk
r` td||t|f Y nX dS )zVerifies 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).
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@r r r] )r rsplitr )rV r rS rL r r r r- r- r.
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rP tdY q\X ntddS )zfMove file pointer back to its recorded starting position
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r9 Nz;An error occurred when rewinding request body for redirect.z+Unable to rewind request body for redirect.)r^ ZbodyrQ Z_body_positionr rC r& r )Zprepared_requestZ body_seekr- r- r. rewind_body} s r )r r )F)FzBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~)N)r )^__doc__r r rg
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