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-rw-r--r--Doc/library/urllib.request.rst38
1 files changed, 36 insertions, 2 deletions
diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst
index 21255e5..d5f3f2c 100644
--- a/Doc/library/urllib.request.rst
+++ b/Doc/library/urllib.request.rst
@@ -121,7 +121,7 @@ The :mod:`urllib.request` module defines the following functions:
instances of them or subclasses of them: :class:`ProxyHandler`,
:class:`UnknownHandler`, :class:`HTTPHandler`, :class:`HTTPDefaultErrorHandler`,
:class:`HTTPRedirectHandler`, :class:`FTPHandler`, :class:`FileHandler`,
- :class:`HTTPErrorProcessor`.
+ :class:`HTTPErrorProcessor`, :class:`DataHandler`.
If the Python installation has SSL support (i.e., if the :mod:`ssl` module
can be imported), :class:`HTTPSHandler` will also be added.
@@ -346,6 +346,11 @@ The following classes are provided:
Open local files.
+.. class:: DataHandler()
+
+ Open data URLs.
+
+ .. versionadded:: 3.4
.. class:: FTPHandler()
@@ -403,6 +408,10 @@ request.
The entity body for the request, or None if not specified.
+ .. versionchanged:: 3.4
+ Changing value of :attr:`Request.data` now deletes "Content-Length"
+ header if it was previously set or calculated.
+
.. attribute:: Request.unverifiable
boolean, indicates whether the request is unverifiable as defined
@@ -451,6 +460,14 @@ request.
unredirected).
+.. method:: Request.remove_header(header)
+
+ Remove named header from the request instance (both from regular and
+ unredirected headers).
+
+ .. versionadded:: 3.4
+
+
.. method:: Request.get_full_url()
Return the URL given in the constructor.
@@ -972,6 +989,21 @@ FileHandler Objects
hostname is given, an :exc:`URLError` is raised.
+.. _data-handler-objects:
+
+DataHandler Objects
+-------------------
+
+.. method:: DataHandler.data_open(req)
+
+ Read a data URL. This kind of URL contains the content encoded in the URL
+ itself. The data URL syntax is specified in :rfc:`2397`. This implementation
+ ignores white spaces in base64 encoded data URLs so the URL may be wrapped
+ in whatever source file it comes from. But even though some browsers don't
+ mind about a missing padding at the end of a base64 encoded data URL, this
+ implementation will raise an :exc:`ValueError` in that case.
+
+
.. _ftp-handler-objects:
FTPHandler Objects
@@ -1374,7 +1406,9 @@ some point in the future.
pair: FTP; protocol
* Currently, only the following protocols are supported: HTTP (versions 0.9 and
- 1.0), FTP, and local files.
+ 1.0), FTP, local files, and data URLs.
+
+ .. versionchanged:: 3.4 Added support for data URLs.
* The caching feature of :func:`urlretrieve` has been disabled until someone
finds the time to hack proper processing of Expiration time headers.