food for thought
```Constants are usually defined on a module level and written in all capital letters with underscores separating words.``` [PEP8](http://legacy.python.org/dev/peps/pep-0008/#constants)

```pylint run.py```

```
C: 18, 0: Invalid constant name "parser" (invalid-name)
C: 48, 0: Invalid constant name "args" (invalid-name)
....
C: 96, 0: Invalid constant name "dir_storage" (invalid-name)
````