Fix __currency

bot/coins.py

@@ -6,21 +6,23 @@ from irc3.utils import IrcString
 
 from . import Plugin
 
-def __currency(name=None, prefix=None, suffix=None):
-    return lambda value:
+
+def __currency(name, prefix=None, suffix=None):
+    def str(value):
         return '{prefix}{value:,.2f}{suffix}'.format(
                 prefix=prefix or '',
-                suffix=suffix or (' ' + name if name else ''),
+                suffix=suffix or ('' if (prefix or suffix) else (' ' + name)),
                 value=value)
+    return str
 
 class Coins(Plugin):
     API_URL = 'https://api.cryptowat.ch/markets/{market}/{crypto}{currency}/summary'
     CURRENCIES = {
-        'usd': __currency(prefix='$'),
-        'eur': __currency(suffix='€'),
-        'eth': __currency(suffix='Ξ'),
-        'btc': __currency(suffix='฿'),
-        'xmr': __currency(name='xmr'),
+        'usd': __currency('usd', prefix='$'),
+        'eur': __currency('eur', suffix='€'),
+        'eth': __currency('eth', suffix='Ξ'),
+        'btc': __currency('btc', suffix='฿'),
+        'xmr': __currency('xmr'),
     }
 
     @command