diff options
Diffstat (limited to 'Lib/email/headerregistry.py')
| -rw-r--r-- | Lib/email/headerregistry.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/email/headerregistry.py b/Lib/email/headerregistry.py index 1fae950..911a2af 100644 --- a/Lib/email/headerregistry.py +++ b/Lib/email/headerregistry.py @@ -7,6 +7,7 @@ Eventually HeaderRegistry will be a public API, but it isn't yet, and will probably change some before that happens. """ +from types import MappingProxyType from email import utils from email import errors @@ -454,7 +455,7 @@ class ParameterizedMIMEHeader: @property def params(self): - return self._params.copy() + return MappingProxyType(self._params) class ContentTypeHeader(ParameterizedMIMEHeader): |