bpo-16285: Update urllib quoting to RFC 3986 (#173)

* bpo-16285: Update urllib quoting to RFC 3986

urllib.parse.quote is now based on RFC 3986, and hence
includes `'~'` in the set of characters that is not escaped
by default.

Patch by Christian Theune and Ratnadeep Debnath.

1 files changed, 5 insertions, 1 deletions

diff --git a/Doc/library/urllib.parse.rst b/Doc/library/urllib.parse.rst
index 676321b..7a5b56f 100644
--- a/Doc/library/urllib.parse.rst
+++ b/Doc/library/urllib.parse.rst
@@ -451,13 +451,17 @@ task isn't already covered by the URL parsing functions above.
 .. function:: quote(string, safe='/', encoding=None, errors=None)
 
    Replace special characters in *string* using the ``%xx`` escape. Letters,
-   digits, and the characters ``'_.-'`` are never quoted. By default, this
+   digits, and the characters ``'_.-~'`` are never quoted. By default, this
    function is intended for quoting the path section of URL. The optional *safe*
    parameter specifies additional ASCII characters that should not be quoted
    --- its default value is ``'/'``.
 
    *string* may be either a :class:`str` or a :class:`bytes`.
 
+   .. versionchanged:: 3.7
+      Moved from RFC 2396 to RFC 3986 for quoting URL strings. "~" is now
+      included in the set of reserved characters.
+
    The optional *encoding* and *errors* parameters specify how to deal with
    non-ASCII characters, as accepted by the :meth:`str.encode` method.
    *encoding* defaults to ``'utf-8'``.