diff options
Diffstat (limited to 'Lib/email/headerregistry.py')
| -rw-r--r-- | Lib/email/headerregistry.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Lib/email/headerregistry.py b/Lib/email/headerregistry.py index 0fc2231..f5be87f 100644 --- a/Lib/email/headerregistry.py +++ b/Lib/email/headerregistry.py @@ -245,13 +245,16 @@ class BaseHeader(str): the header name and the ': ' separator. """ - # At some point we need to only put fws here if it was in the source. + # At some point we need to put fws here iif it was in the source. header = parser.Header([ parser.HeaderLabel([ parser.ValueTerminal(self.name, 'header-name'), parser.ValueTerminal(':', 'header-sep')]), - parser.CFWSList([parser.WhiteSpaceTerminal(' ', 'fws')]), - self._parse_tree]) + ]) + if self._parse_tree: + header.append( + parser.CFWSList([parser.WhiteSpaceTerminal(' ', 'fws')])) + header.append(self._parse_tree) return header.fold(policy=policy) |