How can variables be imported dynamically from another file?

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One way to import variables dynamically from another file in Python is to use the built-in importlib module. Here's an example:

Suppose we have a file config.py that contains some variables we want to import dynamically:

my_var1 = "hello"
my_var2 = 42

To import these variables dynamically in another file, we can use the import_module and getattr functions from importlib. Here's an example:

import importlib

config = importlib.import_module("config")

my_var1 = getattr(config, "my_var1")
my_var2 = getattr(config, "my_var2")

print(my_var1)  # output: "hello"
print(my_var2)  # output: 42

In this example, import_module is used to load the config module dynamically. Then, getattr is used to retrieve the values of the individual variables my_var1 and my_var2 from the config module. Finally, we print the values of these variables to confirm that they were imported successfully.