open: fix linter warnings.

git-open

@@ -40,13 +40,16 @@ def popen(str):
         sys.exit(1)
     return out
 
+
 def gitconf(field):
     return popen("git config " + field)
 
+
 def remote_url(remote_name):
     # return gitconf("remote.{}.url".format(remote_name))
     return popen(f'git remote get-url {remote_name}').strip()
 
+
 def to_http(url):
     for pattern in configuration['patterns']:
         if match := re.match(pattern['i'], url):
@@ -69,23 +72,29 @@ def to_http(url):
         return "https://" + base + "/" + path
     raise Exception("URL doesn't start with either 'http' or 'git@'")
 
+
 def xdg_open(item):
     subprocess.run(["xdg-open", item])
 
+
 def err(s):
     print("\x1b[0;31mError\x1b[m " + s)
 
+
 def warn(s):
     print("\x1b[0;33mWarn\x1b[m " + s)
 
+
 def info(s):
     print("\x1b[0;32mInfo\x1b[m " + s)
 
+
 def open_remote(remote):
     url = to_http(remote_url(remote))
     xdg_open(url)
     info(f'opening {url}')
 
+
 def main(args):
     out = popen("git remote")
     remotes = out.strip().split("\n")
@@ -94,7 +103,7 @@ def main(args):
 
     do = open_remote
     if args.dry_run:
-        do = lambda x: print(to_http(remote_url(x)))
+        do = lambda x: print(to_http(remote_url(x)))  # noqa: E731
 
     if not remotes:
         err("No remotes")
@@ -117,6 +126,7 @@ def main(args):
     else:
         err("All remotes failed")
 
+
 def load_configuration():
     global configuration
     # TODO possibly add ~/.config/git/open.yaml to list
@@ -129,10 +139,12 @@ def load_configuration():
         except FileNotFoundError:
             pass
 
+
 if __name__ == "__main__":
     # Note that argparse gives `--help' and `-h', but git "eats"
     # `--help'. `-h' does however work.
-    parser = argparse.ArgumentParser(description='open git remotes in web browser')
+    parser = argparse.ArgumentParser(
+            description='open git remotes in web browser')
     parser.add_argument('-n', '--dry-run', action='store_true', dest='dry_run')
     parser.add_argument('remote', action='store', nargs='?')
     args = parser.parse_args()
@@ -141,4 +153,3 @@ if __name__ == "__main__":
         load_configuration()
 
     main(args)
-