Quote unicode characters in URL path

[dmach]

Also throw URLError if illegal characters are found in URL path.

[pep8speaks]

Hello @dmach! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file osc/core.py:

Line 3337:5: E741 ambiguous variable name 'l'

[dmach]

Fixes #1018

I'd ignore the following pep8speaks warning in this case, because the l variable existed before submitting this pull request.

Line 3337:5: E741 ambiguous variable name 'l'

[lethliel]

LGTM. Thanks for the fix.

[marcus-h]

On 2022-03-30 01:23:50 -0700, Marco Strigl wrote: LGTM. Thanks for the fix.

Arghs... this will break several codepaths that already do the quoting on their own. Yes, this is a mess in osc. For instance, now something like "osc co openSUSE:Tools osc" should break because openSUSE:Tools is quoted twice...