NameError: name 'one' is not defined python 3.4 error - 


a=str(input("enter num start functionone")) if(a == '1'):     one()    elif (a == '2'):     tow()     def one():     print('good')  def tow():     print('very good')

error

enter numper start functionone1 traceback (most recent call last):   file "c:/users/hacker/desktop/complex program.py", line 3, in <module>     one() nameerror: name 'one' not defined

you need define functions before calling them:

def one():     print('good')  def tow():     print('very good')  a=str(input("enter num start functionone")) if(a == '1'):     one()    elif (a == '2'):     tow()

if call function function defined below won't work because python doesn't know yet function call supposed do.


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