CODEWITHSUNDEEP
pythonscope
user5365246
user5365246

Reputation:

Import function variables from one python file to another

I wanted to import a variable defined in function to another python file

e1.py

 def abc():
     global a
     a=10

e2.py

import e1
def defi():
    c=e1.abc.a
    print(c)

defi()

I have searched but didn't get the right answer

Following is the error-

 Traceback (most recent call last):
 File "C:\Users\gkaur\Documents\MSO Editor Tool\e2.py", line 1, in <module>
 from e1 import abc
 File "C:\Users\gkaur\Documents\MSO Editor Tool\e1.py", line 2
 global a
 SyntaxError: name 'a' is parameter and global

Upvotes: 1

Views: 334

Answers (3)

user5416120
user5416120

Reputation:

You are not using the function in file 1 correctly it should be:

def abc():
    a = 10
    return a

You should be returning the value. for the second file it should be: 

import e1
def defi():
    c = e1.abc()
    print(c)

defi()

without the () at the end of e1.abc() it doesn't actually tell the function to perform it's specific task.

Upvotes: 1

Cyrbil
Cyrbil

Reputation: 6478

Your variable a is not defined until you call abc().

As you can see with dir(e1) or help(e1) in a repl, e1 does not have a variable a, only a function abc. Then after a call to abc(), a is here and set to 10.

>>> import e1
>>> dir(e1)
['__builtins__', '__doc__', '__file__', '__name__', '__package__', 'abc']
>>> e1.abc()
>>> dir(e1)
['__builtins__', '__doc__', '__file__', '__name__', '__package__', 'a', 'abc']
>>> e1.a
10

Upvotes: 1

chepner
chepner

Reputation: 531205

a is a module global variable in e1. Other than being set in abc, it is unrelated to that function; abc.a is an error.

import e1
def defi():
    c = e1.a
    print(c)

# This should produce an error
defi()

However, unless you give a a value in the global scope of e1, it does not exist until you call abc.

import e1
def defi():
    c = e1.a
    print c

e1.abc()
defi()

Upvotes: 1

Related Questions