main.py

import module

def handle():
  ...

def main():
  try:
    module.test()
  except:
    handle()

if __name__ == '__main__':
  main()

module.py

def test():
  import third

output.txt

=== /Users/andreyvit/Projects/hellow/python/third.py(2) None::<module>
frame.f_locals.keys() == ['__builtins__', '__doc__', '__file__', '__name__']
frame.f_globals.keys() == ['__builtins__', '__doc__', '__file__', '__name__']
frame.f_globals['__name__'] == None
frame.f_globals['__file__'] == None
['co_argcount', 'co_cellvars', 'co_code', 'co_consts', 'co_filename', 'co_firstlineno', 'co_flags', 'co_freevars', 'co_lnotab', 'co_name', 'co_names', 'co_nlocals', 'co_stacksize', 'co_varnames']

=== /Users/andreyvit/Projects/hellow/python/module.py(3) None::test
frame.f_locals.keys() == []
frame.f_globals.keys() == ['__builtins__', '__doc__', '__file__', '__name__', 'test']
frame.f_globals['__name__'] == module
frame.f_globals['__file__'] == /Users/andreyvit/Projects/hellow/python/module.pyc
['co_argcount', 'co_cellvars', 'co_code', 'co_consts', 'co_filename', 'co_firstlineno', 'co_flags', 'co_freevars', 'co_lnotab', 'co_name', 'co_names', 'co_nlocals', 'co_stacksize', 'co_varnames']

=== /Users/andreyvit/Projects/hellow/python/main.py(69) None::main
frame.f_locals.keys() == []
frame.f_globals.keys() == ['__builtins__', '__doc__', '__file__', '__name__', 'encode_exception_name', 'extract_tb', 'get_class_name', 'get_traceback', 'handle', 'main', 'module', 'os', 'sys']
frame.f_globals['__name__'] == __main__
frame.f_globals['__file__'] == /Users/andreyvit/Projects/hellow/python/main.py
['co_argcount', 'co_cellvars', 'co_code', 'co_consts', 'co_filename', 'co_firstlineno', 'co_flags', 'co_freevars', 'co_lnotab', 'co_name', 'co_names', 'co_nlocals', 'co_stacksize', 'co_varnames']

third.py

print 2 / 0