How to overcome this issue: Function is not defined in python.? [duplicate]

Question

Good day I have the following snippet:

#! /usr/bin/python
#! /usr/bin/python3

from sys import version_info
import logging

py3 = version_info[0] > 2 

if py3:
    name = input('What is your name?: ')
    verify_user(name)
else:
    name = raw_input('What is your name?: ')
    verify_user(name)


def verify_user(name):
    if name is not 'My Admin':
        logging.warning('What the hell are you doing in here ???')
    else:
        logging.info('Welcome Dear Admin')

When I run it through the shell doing: ./log.py, I'm receiving the following error:

verify_user is not define.

Not sure what is going on. I have defined the verify_user(). Any help will be really appreciated.

Python is an interpreted, dynamic programming language. Define before calling a function. — SparkAndShine
– SparkAndShine, Commented May 16, 2016 at 10:32

Anthony E · Accepted Answer · 2016-05-16 10:29:32Z

4

You're calling verify_user before you define it. Move the verify_user function to the top of your file.

#! /usr/bin/python 
#! /usr/bin/python3

from sys import version_info
import logging

def verify_user(name):
    if name is not 'My Admin':
        logging.warning('What the hell are you doing in here ???')
    else:
        logging.info('Welcome Dear Admin')

py3 = version_info[0] > 2 

if py3:
    name = input('What is your name?: ')
    verify_user(name)
else:
    name = raw_input('What is your name?: ')
    verify_user(name)

answered May 16, 2016 at 10:29

Anthony E

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1 Comment

the phenom Over a year ago

when I run this snippet no matter what my keyboard input is, it's just showing the logging.warning(), while what I want is when the name input equals My Admin, to display the else part.

riteshtch · Accepted Answer · 2016-05-16 10:33:49Z

1

Python is a dynamic language, hence you need to 1st define the function and then use it.

Solution: Put the whole function definition before using it.

#! /usr/bin/python
#! /usr/bin/python3

from sys import version_info
import logging

def verify_user(name):
    if name is not 'My Admin':
        logging.warning('What the hell are you doing in here ???')
    else:
        logging.info('Welcome Dear Admin')

py3 = version_info[0] > 2 

if py3:
    name = input('What is your name?: ')
    verify_user(name)
else:
    name = raw_input('What is your name?: ')
    verify_user(name)

edited May 16, 2016 at 10:33

answered May 16, 2016 at 10:30

riteshtch

8,7894 gold badges28 silver badges39 bronze badges

2 Comments

the phenom Over a year ago

@ritesht93, when I run this snippet no matter what my keyboard input is, it's just showing the logging.warning(), while what I want is when the name input equals My Admin, to display the else part.

riteshtch Over a year ago

@thePhenom use != instead of is not

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