[Python] How to create global variables dynamically from base class defined in a separate file?

My real scenario needs to create global variables dynamically from within a function defined in a library so it can be reused for many projects. The function can be either a method in a base class or a global function.

For the sake of simplicity, consider the following a trivial example. I know the global variables are in file or module scope.

# mylib.py
class Parent:
def __init__(self, var_name):
self.__var_name__ = var_name
def create_global_variable(self, var_value):
globals()[self.__var_name__] = var_value
def clear_global_variables(self):
globals().clear()


# test.py
from mylib import Parent
class Child(Parent): pass
child = Child('temperature')
child.create_global_variable(100)
print(temperature) # NameError: name 'temperature' is not defined
child.clear_global_variables()



Is there any trick to bypass the restriction?

Edit


job() will be reused in many projects.

def job(input, predicate, buffer_name):
globals()[buffer_name] = predicate(input)
return input


exp = fr"""
Squaring {job(2,lambda x: x*x, 'square')} equals to {square}
"""

print(exp)


Constraint: all buffering variables must be defined in f-string.

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