Improve load time for getting list of tickers for user interface

1 files changed, 8 insertions, 6 deletions

diff --git a/coinfetch b/coinfetch
index d1a3f0b..b3ded8e 100755
--- a/coinfetch
+++ b/coinfetch
@@ -50,6 +50,10 @@ else:
 
 default_api = config['coinfetch']['api']
 
+load_default_plugins()
+tickers = get_registered_tickers()
+tickers.sort()
+
 class DefaultApiAction(Action):
     def __call__(self, parser, values, namespace, option_string):
         config['coinfetch']['api'] = namespace
@@ -60,8 +64,6 @@ class DefaultApiAction(Action):
 
 class ListAction(Action):
     def __call__(self, parser, values, namespace, option_string):
-        tickers = get_registered_tickers()
-        tickers.sort()
         for api, desc in tickers:
             if api == default_api:
                 desc += ' (default)'
@@ -73,16 +75,16 @@ class VersionAction(Action):
         print(__version_info__)
         exit(0)
 
-load_default_plugins()
-
 cli = ArgumentParser(__title__)
 
-cli.add_argument('-a', '--api', default=default_api, help='uses an API by name')
+cli.add_argument('-a', '--api', default=default_api,
+                 choices=[api for api, desc in tickers],
+                 help='uses an API by name')
 cli.add_argument('-k', '--kind', help='specifies which kind of rate to get')
 cli.add_argument('-l', '--list-apis', action=ListAction,
                  help='list available APIs and exit', nargs=0)
 cli.add_argument('--set-default', action=DefaultApiAction,
-                 choices=[api for api, desc in get_registered_tickers()],
+                 choices=[api for api, desc in tickers],
                  help='sets the default API and exits')
 cli.add_argument('-v', '--version', action=VersionAction,
                  help='show version information and exit', nargs=0)