Get full traceback

Question

How can i get full traceback in the following case, including the calls of func2 and func functions?

import traceback

def func():
         


        

Answer 1

There's some more information that could be extracted from the traceback, and I sometimes prefer a neater, more 'logical' information instead of multi-line blob with files, line numbers and code snippetsgiven by traceback. Preferably one line should say all the essentials.

To achieve this I use following function:

def raising_code_info():
    code_info = ''
    try:    
        frames = inspect.trace()
        if(len(frames)):
            full_method_name = frames[0][4][0].rstrip('\n\r').strip()
            line_number      = frames[1][2]
            module_name      = frames[0][0].f_globals['__name__']
            if(module_name == '__main__'):
                module_name = os.path.basename(sys.argv[0]).replace('.py','')
            class_name = ''
            obj_name_dot_method = full_method_name.split('.', 1)
            if len(obj_name_dot_method) > 1:
                obj_name, full_method_name = obj_name_dot_method
                try:
                    class_name = frames[0][0].f_locals[obj_name].__class__.__name__
                except:
                    pass
            method_name = module_name + '.'
            if len(class_name) > 0:
                method_name += class_name + '.'
            method_name += full_method_name
            code_info = '%s, line %d' % (method_name, line_number)
    finally:
        del frames
        sys.exc_clear()
    return code_info

It gives . and line number, e.g.:

(example module name: test.py):

(line 73:)
def function1():
    print 1/0

class AClass(object):    
    def method2(self):
        a = []
        a[3] = 1

def try_it_out():
    # try it with a function
    try:
        function1()
    except Exception, what:
        print '%s: \"%s\"' % (raising_code_info(), what)

    # try it with a method
    try:
        my_obj_name = AClass()
        my_obj_name.method2()       
    except Exception, what:
        print '%s: \"%s\"' % (raising_code_info(), what)

if __name__ == '__main__':
     try_it_out()


test.function1(), line 75: "integer division or modulo by zero"
test.AClass.method2(), line 80: "list assignment index out of range"

Which might be slightly neater in some use-cases.