NameError and ValueError in Python -

why python shell throwing nameerror windows console valueerror?

def printargs(*arg):     list = ['1','2']     in arg:         try:             print(list[int(i)])         except valueerror:             print('please enter integer value')         except nameerror:             print('name error')  if __name__ == '__main__':     printargs(*sys.argv[1:]) 

providing following arguments windows console gives output:

here how call code in windows console:

c:\>c:\python34\python c:\users\user\documents\pytest\test.py 0  1 please enter integer value 

providing following arguments python shell not display cusom error nameerror mentioned in code above, mentions following error:

printargs(0,a)  traceback (most recent call last): file "<pyshell#0>", line 1, in <module> printargs(0,a) nameerror: name 'a' not defined 

in code example you've provided define list i, iterate on collection called list never initiated, , assign values in list i, dropping original value. guess provided part of code, please provide minimum working example.

if try reproduce problem, type error, iterating on list not initialized.