Python version issues in code requiring Python 2.7 or 3.2

[von]

The code uses several aspects of Python that are version dependent and require the latest major versions of Python (2.7 and 3.2 at this time). All these aspects should be supported by newer versions of Python, so will just cause problems with older versions (i.e. 2.6 and 3.0).

The particular issues are:

1) The use of argparse

2) Using format() with without argument names or positions, e.g. "{}".format(a) instead of "{0}.format(a)

Both of these are rather prevalent through the code and I'm not sure at this time if I'm going to fix this or just make 2.7/3.2+ a requirement.

[von]

argparse can be installed in Python 2.6, at least, from https://code.google.com/p/argparse/

[von]

Dan W. has a fix for the format() issue: 66e541c65910783bc91d6d6ef160254f852a829a

[von]

Looks like non-blocking recv() on ssl.socket are broken in Python prior to 2.6.6: http://bugs.python.org/issue3890

[von]

With installation of argparse, the branch python-2.6 is now working with Python 2.6