Get the explicit Python 2 version if there is one.

fixes #842

Laurent Bachelier authored Mar 27, 2012 and Romain Bignon committed Mar 27, 2012

Force using local modules / code.

I used autopep8 on some files and did carefully check the changes.
I ignored E501,E302,E231,E225,E222,E221,E241,E203 in my search, and at
least E501 on any autopep8 run.

Other style fixes not related to PEP8:
* Only use new-style classes. I don't think the usage of old-style
  classes was voluntary. Old-style classes are removed in Python 3.
* Convert an if/else to a one-liner in mediawiki, change docstring style
  change to a comment something that wasn't really appropriate for a
  docstring.
* Unneeded first if condition in meteofrance

Laurent Bachelier authored Mar 12, 2012 and Romain Bignon committed Mar 13, 2012

And fix some PEP8 style issues (mostly about spaces) while I was there.

refs #806

Tested with dash & bash.

Also minor improvements on style.

It will use a temporary directory.
It reads the WEBOOB_WORKDIR variable if you want a different backends
file.
It sets sources.list by itself.
The temporary directory is removed if possible.
It is still possible to test only one backend.

this is an ugly solution; backends should be simple enough to not need a
generator, and this is almost achieved with genericcomicreader except
for the necessity of two separate short files (__init__ and test)

Use stderr and return codes >0 when it makes sense.
Loose return code conventions:
* 1 for generic errors
* 2 for user input errors
* 3 for remote errors (not found, etc.)
* 4 for not implemented

display usage, description and commands list in a proper way, display copyright and files list (refs #427)

Far from enough to replace the current manpages as of now, so they are
put in the man2/ directory.