ATS - Automated Testing System - is an open-source, Python-based tool for automating the running of tests of an application across a broad range of high performance computers.
Updated the docstring to use triple double-quotes for consistency with PEP 257.
Replaced if x in test_environment followed by del test_environment[x] with a single line using test_environment.pop(symbol, None). The pop method removes the item with the specified key if it exists, and does nothing if the key is not found, making the code more concise.
Why Pop over Del:
Using pop over the del method in this specific case offers a more concise and readable solution. The pop method with a default value of None allows you to remove an item with the specified key if it exists, and does nothing if the key is not found, effectively combining the if condition and the del statement into a single line.
Changes made: