CODEWITHSUNDEEP
pythonnamespacesglobal
user3015347
user3015347

Reputation: 513

python global namespace not accessible

I can run API.py, but not the APP.py in the same directory. The error is "NameError: name 'a' is not defined". Is global() really global?

API.py:

class Entity():
    def __init__(self,name,value):
        globals()[name]=value

if __name__ == '__main__':
    Entity('a',1)
    print(a)

APP.py

from API import Entity

if __name__ == '__main__':
    Entity('a',1)
    print(a)

Upvotes: 1

Views: 96

Answers (1)

SurpriseDog
SurpriseDog

Reputation: 484

Globals are only accessible by a every function in a module, but not by functions in other imported modules.

Instead of having Entity setting a global variable directly, perhaps you could have it return the value and then write code in APP.py to set the value globally.

The alternative is to have your global variable in a shared module that is imported by everyone else, and then every module will have read/write access to it.

Upvotes: 1

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