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| author | Nikita Sobolev <mail@sobolevn.me> | 2023-01-07 21:26:05 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-07 21:26:05 (GMT) |
| commit | 6746135b0722a5359ce6346554c847afba603b5a (patch) | |
| tree | 6e4951fd9124558afddd5f97f418121bd86f4743 /Lib/email | |
| parent | 47b9f83a83db288c652e43567c7b0f74d87a29be (diff) | |
| download | cpython-6746135b0722a5359ce6346554c847afba603b5a.zip cpython-6746135b0722a5359ce6346554c847afba603b5a.tar.gz cpython-6746135b0722a5359ce6346554c847afba603b5a.tar.bz2 | |
gh-100792: Make `email.message.Message.__contains__` twice as fast (#100793)
Diffstat (limited to 'Lib/email')
| -rw-r--r-- | Lib/email/message.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Lib/email/message.py b/Lib/email/message.py index 65fda50..b540c33 100644 --- a/Lib/email/message.py +++ b/Lib/email/message.py @@ -448,7 +448,11 @@ class Message: self._headers = newheaders def __contains__(self, name): - return name.lower() in [k.lower() for k, v in self._headers] + name_lower = name.lower() + for k, v in self._headers: + if name_lower == k.lower(): + return True + return False def __iter__(self): for field, value in self._headers: |