traceback_practise.py

'''
To get caller info
'''
import traceback


def func(x):
    print "result: %s" % x
    stack = traceback.extract_stack()
    print "where i am"
    item = stack[-1]
    print "which file: %s" % item[0]
    print "line: %s" % item[1]
    print "function name: %s" % item[2]
    print "how call: %s" % item[3]
    print "\n"
    
    print "where call the function"
    item = stack[-2]
    print "which file: %s" % item[0]
    print "line: %s" % item[1]
    print "function name: %s" % item[2]
    print "how call: %s" % item[3]
    


def func1(x):
    func(x)


def func2(x):
    func1(x)


if __name__ == '__main__':
    func2(90)