Prevent errors when checking for extensions if there is no extension directory

Former-commit-id: edb03fb89643e74d28bdbfa20bef5deb4da62e49
Former-commit-id: 306b9928f47d1fe6880ca30c91adbb001b4684f3

lib/sshyp.py

@@ -747,6 +747,7 @@ def remove_data():  # deletes an entry from the server and flags it for local de
 def extension_runner():  # checks extension config files for matches to argument, runs extensions
     from configparser import ConfigParser
     _output_com, _extension_dir = None, realpath(__file__).rsplit('/', 1)[0] + '/extensions/'
+    if isdir(_extension_dir):
         for _extension in listdir(_extension_dir):
             _extension_config = ConfigParser()
             _extension_config.read(_extension_dir + _extension)
@@ -757,9 +758,11 @@ def extension_runner():  # checks extension config files for matches to argument
                     _output_com.append(arguments[0])
         if _output_com is not None:
             run(_output_com)
-        s_exit()
         else:
             print_info()
+    else:
+        print_info()
+    s_exit()
 
 
 if __name__ == "__main__":