feed: Remove the for loop variable `e` for a clean namespace

Otherwise:

  >>> import rss2email.feed
  >>> print([x for x in dir(rss2email) if not x.startswith('_')])
  ['Feed', 'e']

which might confuse people ;).

Signed-off-by: W. Trevor King <wking@tremily.us>

diff --git a/rss2email/feed.py b/rss2email/feed.py
index 73b182a3dcd26b3082f14044d5c2cba0494f1751..9a1c70974b0dfdf9cbaff647d8ac69de1fdf56cb 100644 (file)
--- a/rss2email/feed.py
+++ b/rss2email/feed.py
@@ -57,6 +57,7 @@ _SOCKET_ERRORS = []
 for e in ['error', 'gaierror']:
     if hasattr(_socket, e):
         _SOCKET_ERRORS.append(getattr(_socket, e))
+del e  # cleanup namespace
 _SOCKET_ERRORS = tuple(_SOCKET_ERRORS)