From 2a2ce328fb32424e9ddef853211d5d877eb3d5b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20v=2E=20L=C3=B6wis?= <martin@v.loewis.de>
Date: Tue, 1 May 2012 08:44:08 +0200
Subject: Recognize unsupported feature "compressed patch data set" from zip
 2.7.

---
 Lib/zipfile.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index ff7f30f..fa6a433 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -1053,6 +1053,10 @@ class ZipFile:
         if fheader[_FH_EXTRA_FIELD_LENGTH]:
             zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
 
+        if zinfo.flag_bits & 0x20:
+            # Zip 2.7: compressed patched data
+            raise NotImplementedError("compressed patched data (flag bit 5)")
+
         if zinfo.flag_bits & 0x800:
             # UTF-8 filename
             fname_str = fname.decode("utf-8")
-- 
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