How To Write Into A Single Variable From Different Modules In Python

The aim of this page📝 is to describe cross-module variable sharing. In the course of the runtime, I need to build an output variable that I print for the user at the very and of a larger script that I decomposed into multiple modules.

1. notes

• I guess this would be discouraged by gurus, but still…
• context: all is happening within a single folder — no packages at play here
• manually, create a file dedicated to holding a cross-module variable, e.g. config.py
• within the config.py, declare the variable that you will refer to from various modules, e.g. output={}
• in modules, where you need to write into the cross-module variable, import config module with import config at the top of the file
• then, write into the cross-module variable with <module>.<variable> = <value>, e.g.

config.output["current_change"] = "./cu_output.csv"

• read/access the contents from cross-module variable from a different module with the same <module>.<variable> syntax, e.g.

for (k, v) in config.output.items():
        print(k, "~~>", v)

2. links

• How do I share global variables across modules — python