- Sync with python-irclib package -> provides/obsoletes fun

- Add patch fix-lint.patch to fix lint error
- Update version to 17.0:
  * Support for py3.7
- Drop support for python2, dropped by upstream

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-irc?expand=0&rev=4

fix-lint.patch

@@ -0,0 +1,12 @@
+Index: irc-17.0/scripts/irccat2-aio.py
+===================================================================
+--- irc-17.0.orig/scripts/irccat2-aio.py
++++ irc-17.0/scripts/irccat2-aio.py
+@@ -70,6 +70,7 @@ def main():
+             args.server, args.port, args.nickname, password=args.password
+         )
+     except irc.client.ServerConnectionError as x:
++        print(x)
+         sys.exit(1)
+ 
+     try: