Patch by Serhiy Storchaka.

* Mark up ``--help`` to avoid generating an en dash
* Use forward slash in Unix command line with a dollar sign ($) prompt

ctypes.CDLL instances.

Thanks Greg Bengeult for the patch.

Original patch by Chi Hsuan Yen.

Issue #29188: Support glibc 2.24 on Linux: don't use getentropy() function but
read from /dev/urandom to get random bytes, for example in os.urandom().  On
Linux, getentropy() is implemented which getrandom() is blocking mode, whereas
os.urandom() should not block.

In urllib, suffixes in no_proxy environment variable with
leading dots could match related hostnames again (e.g. .b.c matches a.b.c).
Patch by Milan Oberkirch.

Patch by jan matejek and Xiang Zhang.

"w" now are relative to the start of the file.

Based on patch by Tycho Andersen.

WeakValueDictionary when collecting from another thread.

Patch by Dhushyanth Ramasamy.

Based on patch by Patrila.

Based on suggestion from Fumihiro Bessho.