[FIXED] How to check variables in python module

Issue

I have a file with variables

//data.txt
M = 100
m = 1
E = 5
j = 1
s = 1

I use the following function to load the data into a python script

def load_file(path):
    if not os.path.isfile(path):
        print('Parameters file not found.')
        exit()

    module_name = os.path.basename(path).replace('-', '_')
    spec = importlib.util.spec_from_loader(
        module_name,
        importlib.machinery.SourceFileLoader(module_name, path)
    )
    module = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(module)
    sys.modules[module_name] = module
    return module

In the main script, the usage would be

import sys
import os
import importlib
data = load_file('data.txt')
print(data.M) 

I can access the variable names with data.Variable. The question I have is how do I check if data contains all the variables it should?

Solution

If you want to check if the variables are defined maybe you can use dir:

print(set(['E', 'M','j', 'm', 's']).issubset(dir(data))) # Prints True if all variable are defined

Answered By - Pedro Maia