Fixing possible permissions error

[loodvn]

Fixes #299

[loodvn]

Oops wait let me add a test first

[thomashopf]

@loodvn I just had a look at the shutil docs:

dst must be the complete target file name; look at copy() for a copy that accepts a target directory path

Since fold_dir is a directory, I think copyfile is not applicable here unless one changes the destination handling

[loodvn]

Ah yes thanks, I see in my original issue I had actually meant to change a different line (

EVcouplings/evcouplings/align/protocol.py

Line 219 in af27842

copy(sequence_file, out_file)

).

But we've since figured out that these permissions errors are happening in many scripts on O2, so I don't think it's an EVcouplings issue, so happy to close the PR and associated issue.

Thanks for checking though!

[thomashopf]

Thanks @loodvn! Will close this PR then.