#8292: Fix three instances of truth tests on return values of filter() (which is always true in Python 3).
diff --git a/Lib/http/server.py b/Lib/http/server.py
index d2a685f..098ad25 100644
--- a/Lib/http/server.py
+++ b/Lib/http/server.py
@@ -1023,8 +1023,9 @@
if ua:
env['HTTP_USER_AGENT'] = ua
co = filter(None, self.headers.get_all('cookie', []))
- if co:
- env['HTTP_COOKIE'] = ', '.join(co)
+ cookie_str = ', '.join(co)
+ if cookie_str:
+ env['HTTP_COOKIE'] = cookie_str
# XXX Other HTTP_* headers
# Since we're setting the env in the parent, provide empty
# values to override previously set values