New submission from Martin Horcicka:
Many people expect the match object from the re module to always be
true. They use it this way:
if regexp.match(string): do_something()
Some people do not expect it and use it differently:
if regexp.match(string) is not None: do_something()
Even
New submission from Martin Horcicka:
This patch makes os.environ.clear() to have the same effect as:
for name in os.environ.keys():
del os.environ[name]
I believe that most people expect the effects to be the same anyway.
The practical benefit is a simpler redefinition of the whole
