https://github.com/python/cpython/commit/303043f5062c1e7ffb7907abde61dbf13c98f8e9
commit: 303043f5062c1e7ffb7907abde61dbf13c98f8e9
branch: main
author: RUANG (James Roy) <[email protected]>
committer: zooba <[email protected]>
date: 2025-02-14T17:26:26Z
summary:
gh-128703: Fix mimetypes.guess_type for empty Content-Type in registry
(GH-128854)
files:
A Misc/NEWS.d/next/Library/2025-01-15-12-04-30.gh-issue-128703.6WPf38.rst
M Lib/mimetypes.py
diff --git a/Lib/mimetypes.py b/Lib/mimetypes.py
index 753238354f6d36..3e1c3cf25d8405 100644
--- a/Lib/mimetypes.py
+++ b/Lib/mimetypes.py
@@ -90,6 +90,8 @@ def add_type(self, type, ext, strict=True):
list of standard types, else to the list of non-standard
types.
"""
+ if not type:
+ return
self.types_map[strict][ext] = type
exts = self.types_map_inv[strict].setdefault(type, [])
if ext not in exts:
diff --git
a/Misc/NEWS.d/next/Library/2025-01-15-12-04-30.gh-issue-128703.6WPf38.rst
b/Misc/NEWS.d/next/Library/2025-01-15-12-04-30.gh-issue-128703.6WPf38.rst
new file mode 100644
index 00000000000000..1e6af90bc04b63
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-01-15-12-04-30.gh-issue-128703.6WPf38.rst
@@ -0,0 +1,2 @@
+Fix :func:`mimetypes.guess_type` to use default mapping for empty
+``Content-Type`` in registry.
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