CRITICAL (python 2.7): eGFRD doesn't function without python hack

[Jintram]

eGFRD uses the logger function in Python, which has been updated from python 2.6 to python 2.7.

A check has been introduced which checks if the presented loglevel is a string or not. We however present an object, which leads to the following error:

jintram@jintram-Aspire-7745G:~/jul2012_gfrd_git/samples/simple$ ./simple.py 
Traceback (most recent call last):
  File "./simple.py", line 12, in <module>
    from egfrd import *
  File "/home/jintram/jul2012_gfrd_git/egfrd.py", line 31, in <module>
    from gfrdbase import *
  File "/home/jintram/jul2012_gfrd_git/gfrdbase.py", line 71, in <module>
    setup_logging()
  File "/home/jintram/jul2012_gfrd_git/gfrdbase.py", line 60, in setup_logging
    handler = _gfrd.CppLoggerHandler(_gfrd.Logger.get_logger("ecell"))
  File "/usr/lib/python2.7/logging/__init__.py", line 668, in __init__
    self.level = _checkLevel(level)
  File "/usr/lib/python2.7/logging/__init__.py", line 194, in _checkLevel
    raise TypeError("Level not an integer or a valid string: %r" % level)
TypeError: Level not an integer or a valid string: <_gfrd.Logger object at 0x996510c>

Only if we remove this check from the python code (!) eGFRD currently functions:

$ sudo vim /usr/lib/python2.7/logging/__init__.py

 182 def _checkLevel(level):
 183 
 184     # ugly hack :)
 185     return level
 186 
 187     if isinstance(level, int):
 188         rv = level
 189     elif str(level) == level:
 190         if level not in _levelNames:
 191             raise ValueError("Unknown level: %r" % level)
 192         rv = _levelNames[level]
 193     else:
 194         raise TypeError("Level not an integer or a valid string: %r" % level)
 195     return rv

We should thus use a string instead of an object to pass on loglevel information.