[Tutor] debugging problem

[Gregor Lingl]

You may get a simpler clue by looking at the attributes
of backbone, you may also put a print dir() or two into the code
to examine what happens when:

 >>> import backbone
 >>> import math
 >>> dir(backbone)
['__builtins__', '__doc__', '__file__', '__name__', 'cgi', 'cgiForm', 
'err', 'reqField', 'wrong']
 >>> backbone = math # ore some other weird action
 >>> dir(backbone)
['__doc__', '__name__', 'acos', 'asin', 'atan', 'atan2', 'ceil', 'cos', 
'cosh', 'e', 'exp', 'fabs', 'floor', 'fmod', 'frexp', 'hypot', 'ldexp', 
'log', 'log10', 'modf', 'pi', 'pow', 'sin', 'sinh', 'sqrt', 'tan', 'tanh']
 >>>