Folder creation fix

[flaviussn]

As long as cache_dir and output_dir can be configured, if the path doesn't exist, should be created.

mkdir() can create a single sub-directory and makedirs() creates all the intermediate directories

[ThilinaRajapakse]

I agree. It's better that we switch to makedirs.

I think it would be even better if we went with;

os.makedirs(self.args["cache_dir"], exist_ok=True)

So that we can drop the check for whether the directory exists altogether.

What do you think?

[flaviussn]

I agree. I would change it for every makedirs

[ThilinaRajapakse]

Great! Thank you!

[flaviussn]

Format and lint should be performed. There are a lot of code style inconsistencies in the master version.

[ThilinaRajapakse]

Looks good! Thank you!

[ThilinaRajapakse]

Yeah, I'll do the formatting stuff soon.