python may define their own func in script to mimic __LINE__ in C language so as to grab the line make easier, it should be something like this:
"""This provides a lineno() function to make it easy to grab the line number that we‘re on. """ import inspect def lineno(): """Returns the current line number in our program.""" return inspect.currentframe().f_back.f_lineno if __name__ == ‘__main__‘: print "hello, this is line number", lineno() print print print "and this is line", lineno()
print "here is :",__file__, sys._getframe().f_lineno => this is dedicated for output with filename and line number. another way to represent line number instead of using function method.