#5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds.

#12759: sre_parse now raises a proper error when the name of the group is missing.  Initial patch by Serhiy Storchaka.

#16152: fix tokenize to ignore whitespace at the end of the code when no newline is found.  Patch by Ned Batchelder.

 Patch by Todd Rovito.

Patch by Zachary Ware.

Patch by Serhiy Storchaka.

Patch by Serhiy Storchaka.

Patch by Yury Selivanov.

Thanks to George Yoshida.

Thanks to Daniel Müllner from docs@

Patch by Zachary Ware.

Patch by Matti Mäki.