How to return a value from one python script to another?

Question

file1.py

from processing file import sendfunction


class ban(): 
    def returnhello(): 
        x = "hello"
        return x #gives reply a value of "hello replied" in processingfile

print(sendfunction.reply()) #this should fetch the value of reply from processingfile,right?

processingfile.py

from file1 import ban
class sendfunction():
    def reply():
        reply = (ban.returnhello() + " replied")
        return reply

I can't really seem to get any results, any help would be appreciated.

oh sorry about that, will make that amendment, thank you @RahulChawla — belligerentbeagle
– belligerentbeagle, Commented Nov 29, 2018 at 7:36

Sven Hakvoort · Accepted Answer · 2018-11-29 09:43:17Z

3

You need to create object of class ban before calling his member function as follows

from file1 import ban
class sendfunction():
    def reply(self):   # Member methods must have `self` as first argument
        b = ban()      # <------- here creation of object
        reply = (b.returnhello() + " replied")
        return reply

OR, you make returnhello method as static method. Then you don't need to create an object of class beforehand to use.

class ban(): 
    @staticmethod       # <---- this is how you make static method
    def returnhello():  # Static methods don't require `self` as first arugment
        x = "hello"
        return x #gives reply a value of "hello replied" in processingfile

BTW: Good programming practice is that, you always start you class name with Capital Letter.
And function and variable names should be lowercase with underscores, so returnhello() should be return_hello(). As mentioned here.

edited Nov 29, 2018 at 9:43

Sven Hakvoort

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answered Nov 29, 2018 at 7:07

Oli

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Comments

Bilal Ali Jafri · Accepted Answer · 2018-11-29 07:18:12Z

0

Lets suppose we have two file A.py and B.py

A.py

a = 3
print('saying hi in A')

B.py

from A import a
print('The value of a is %s in B' % str(a))

On executing B.py you get the following output:

└> python B.py
saying hi in A
The value of a is 3 in B

answered Nov 29, 2018 at 7:18

Bilal Ali Jafri

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