create SSLContext objects in Python's stdlib module. It provides a single
configuration point and makes use of SSLContext.load_default_certs().

which anchor the pattern at both ends of the string to match.

Original patch by Matthew Barnett.

Based on patch by Hugo Lopes Tavares.

samples to little-endian and vice versa.

and warns about potential uninitialized use.
Silence that by initializing it to null.

CID 1131948:  Logically dead code  (DEADCODE)

CID 1131946:  Unchecked return value  (CHECKED_RETURN)

CID 1131949:  Dereference null return value  (NULL_RETURNS)

Most of the work is by Alexandre.

#13633: Added a new convert_charrefs keyword arg to HTMLParser that, when True, automatically converts all character references.