Patch by Petri Lehtinen and Josh Triplett.

exceptions, when a document with timestamp earlier than 1980 is provided to
zipfile. Patch contributed by  Petri Lehtinen.

exceptions, when a document with timestamp earlier than 1980 is provided to
zipfile. Patch contributed by  Petri Lehtinen.

semicolons. Patch by Ben Darnell and Petri Lehtinen.

semicolons. Patch by Ben Darnell and Petri Lehtinen.

- Use os.makedirs (I had forgotten about it!)
- Let TempdirManager.write_file call os.path.join for us
- Remove custom command added by test_dist
- Use a skip instead of hiding a method with an underscore
- Address pyflakes warnings

I need this for some tests, and it makes code clearer.  This commit also
changes some assertEqual calls to use (actual, expected) order and fix
some pyflakes warnings.

The code is still ugly, but at least it works better now.  Patches to
make it easier to read are welcome, as well as support in #12915.

'nonnumeric port'. It parses to a host name of "http:" which is equivalent to
http:80.

Cool! Decoding b'\x81\x00abc' from cp932 with replace error handler is now
giving the same result on all Windows versions.

error handlers on all Windows versions. The MBCS codec is now supporting all
error handlers, instead of only replace to encode and ignore to decode.

when imported, instead doing it at build time.  This makes importing
sysconfig faster and reduces Python startup time by 20%.

generator.throw() now gets the traceback from the passed exception's
``__traceback__`` attribute.  Patch by Petri Lehtinen.

generator.throw() now gets the traceback from the passed exception's
`__traceback__` attribute.  Patch by Petri Lehtinen.