bpo-35397: Remove deprecation and document urllib.parse.unwrap

[remilapeyre]

https://bugs.python.org/issue35397

[ghost]

Ok.Open trigger

[csabella]

@remilapeyre, please apply the change suggested by @merwok. Thanks!

[remilapeyre]

Thanks @csabella, it's done !

[csabella]

@remilapeyre, the builds are failing because of the new documentation you added to the .rst file for unwrap. It is seeing it as 'suspicious' markup. Here is the output of the failure:

Warning, treated as error:
[library/urllib.parse:379] ":scheme" found in "<URL:scheme://host/path>"
Makefile:44: recipe for target 'build' failed
make[1]: *** [build] Error 2
make[1]: Leaving directory '/home/travis/build/python/cpython/Doc'
Suspicious check complete; look for any errors in the above output or in build/suspicious/suspicious.csv.  If all issues are false positives, append that file to tools/susp-ignored.csv.
Makefile:105: recipe for target 'suspicious' failed

So, based on the suggestion there, you need to edit susp-ignored.csv in https://github.com/python/cpython/tree/master/Doc/tools. Here's a link to the checks, for more info.

[remilapeyre]

Thanks @csabella, this is now fixed.

[csabella]

@remilapeyre, thank you for the contribution! @merwok, thank you for the review! 🎉