the sentence referred to. Make other minor edits to improve flow.

caching of compiled regular expressions.

caching of compiled regular expressions.

Initial patch contributed by Edmond Burnett.

urllib.parse.unquote() and urllib.parse.unquote_to_bytes().

urllib.parse.unquote() and urllib.parse.unquote_to_bytes().

If PYTHON is undefined, this fails without the launcher (installed with 3.3 or
from PyPI), but this is better than always failing. Patch from Zachary Ware.

automatically used by import.

#17368: Fix an off-by-one error in the Python JSON decoder that caused a failure while decoding empty object literals when object_pairs_hook was specified.