diff options
Diffstat (limited to 'Doc/library/urllib.request.rst')
| -rw-r--r-- | Doc/library/urllib.request.rst | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst index 4df0f56..d98f200 100644 --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -36,13 +36,8 @@ The :mod:`urllib.request` module defines the following functions: *data* should be a buffer in the standard :mimetype:`application/x-www-form-urlencoded` format. The :func:`urllib.parse.urlencode` function takes a mapping or sequence of - 2-tuples and returns a string in this format. It should be encoded to bytes - before being used as the *data* parameter. The charset parameter in - ``Content-Type`` header may be used to specify the encoding. If charset - parameter is not sent with the Content-Type header, the server following the - HTTP 1.1 recommendation may assume that the data is encoded in ISO-8859-1 - encoding. It is advisable to use charset parameter with encoding used in - ``Content-Type`` header with the :class:`Request`. + 2-tuples and returns an ASCII text string in this format. It should + be encoded to bytes before being used as the *data* parameter. urllib.request module uses HTTP/1.1 and includes ``Connection:close`` header in its HTTP requests. @@ -179,16 +174,9 @@ The following classes are provided: the only ones that use *data*; the HTTP request will be a POST instead of a GET when the *data* parameter is provided. *data* should be a buffer in the standard :mimetype:`application/x-www-form-urlencoded` format. - The :func:`urllib.parse.urlencode` function takes a mapping or sequence of - 2-tuples and returns a string in this format. It should be encoded to bytes - before being used as the *data* parameter. The charset parameter in - ``Content-Type`` header may be used to specify the encoding. If charset - parameter is not sent with the Content-Type header, the server following the - HTTP 1.1 recommendation may assume that the data is encoded in ISO-8859-1 - encoding. It is advisable to use charset parameter with encoding used in - ``Content-Type`` header with the :class:`Request`. - + 2-tuples and returns an ASCII string in this format. It should be + encoded to bytes before being used as the *data* parameter. *headers* should be a dictionary, and will be treated as if :meth:`add_header` was called with each key and value as arguments. @@ -201,7 +189,7 @@ The following classes are provided: ``"Python-urllib/2.6"`` (on Python 2.6). An example of using ``Content-Type`` header with *data* argument would be - sending a dictionary like ``{"Content-Type":" application/x-www-form-urlencoded;charset=utf-8"}``. + sending a dictionary like ``{"Content-Type": "application/x-www-form-urlencoded"}``. The final two arguments are only of interest for correct handling of third-party HTTP cookies: @@ -1169,7 +1157,7 @@ every :class:`Request`. To change this:: opener.open('http://www.example.com/') Also, remember that a few standard headers (:mailheader:`Content-Length`, -:mailheader:`Content-Type` without charset parameter and :mailheader:`Host`) +:mailheader:`Content-Type` and :mailheader:`Host`) are added when the :class:`Request` is passed to :func:`urlopen` (or :meth:`OpenerDirector.open`). @@ -1192,11 +1180,8 @@ from urlencode is encoded to bytes before it is sent to urlopen as data:: >>> import urllib.request >>> import urllib.parse >>> data = urllib.parse.urlencode({'spam': 1, 'eggs': 2, 'bacon': 0}) - >>> data = data.encode('utf-8') - >>> request = urllib.request.Request("http://requestb.in/xrbl82xr") - >>> # adding charset parameter to the Content-Type header. - >>> request.add_header("Content-Type","application/x-www-form-urlencoded;charset=utf-8") - >>> with urllib.request.urlopen(request, data) as f: + >>> data = data.encode('ascii') + >>> with urllib.request.urlopen("http://requestb.in/xrbl82xr", data) as f: ... print(f.read().decode('utf-8')) ... |