Patch by Tamás Bence Gedai.

Force clean externals on buildbots.

Force clean of externals on buildbots.

The bufsize parameter is now deprecated and ignored.

The bufsize parameter is no longer used.

On Windows a symlink can has the FILE_ATTRIBUTE_DIRECTORY flag.

On Windows a symlink can has the FILE_ATTRIBUTE_DIRECTORY flag.

On Windows a symlink can has the FILE_ATTRIBUTE_DIRECTORY flag.

gcc as the option does not work correctly in older versions of gcc
and has been silently removed as of gcc-4.5.

Patch by Alex Willmer.

Since Python 3.4, there is no need to install pip and setuptools
into a venv manually.

Since Python 3.4, there is no need to install pip and setuptools
into a venv manually.

Added an optional argument timespec to the datetime isoformat() method
to choose the precision of the time component.

Original patch by Alessandro Cucci.

Patch by Guo Ci Teo.

Patch by Guo Ci Teo.

Raise ValueError if algorithm is not MD5 or SHA.

Initial patch by Mathieu Dupuy.

Raise ValueError if algorithm is not MD5 or SHA.

Initial patch by Mathieu Dupuy.

Optimized copying and deepcopying bytearrays, NotImplemented, slices,
short lists, tuples, dicts, sets.