diff options
| -rw-r--r-- | Lib/test/test_zipfile.py | 10 | ||||
| -rw-r--r-- | Lib/zipfile.py | 5 | ||||
| -rw-r--r-- | Misc/NEWS | 3 |
3 files changed, 17 insertions, 1 deletions
diff --git a/Lib/test/test_zipfile.py b/Lib/test/test_zipfile.py index ed800c5..55cfaa9 100644 --- a/Lib/test/test_zipfile.py +++ b/Lib/test/test_zipfile.py @@ -688,6 +688,16 @@ class OtherTests(unittest.TestCase): # quickly. self.assertRaises(IOError, zipfile.ZipFile, TESTFN) + def test_empty_file_raises_BadZipFile(self): + f = open(TESTFN, 'w') + f.close() + self.assertRaises(zipfile.BadZipfile, zipfile.ZipFile, TESTFN) + + f = open(TESTFN, 'w') + f.write("short file") + f.close() + self.assertRaises(zipfile.BadZipfile, zipfile.ZipFile, TESTFN) + def testClosedZipRaisesRuntimeError(self): # Verify that testzip() doesn't swallow inappropriate exceptions. data = io.BytesIO() diff --git a/Lib/zipfile.py b/Lib/zipfile.py index 6357b94..79ca152 100644 --- a/Lib/zipfile.py +++ b/Lib/zipfile.py @@ -200,7 +200,10 @@ def _EndRecData(fpin): # Check to see if this is ZIP file with no archive comment (the # "end of central directory" structure should be the last item in the # file if this is the case). - fpin.seek(-sizeEndCentDir, 2) + try: + fpin.seek(-sizeEndCentDir, 2) + except IOError: + return None data = fpin.read() if data[0:4] == stringEndArchive and data[-2:] == b"\000\000": # the signature is correct and there's no comment, unpack structure @@ -61,6 +61,9 @@ Core and Builtins Library ------- +- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when + opening an empty or very small file. + - Issue #7556: Make sure Distutils' msvc9compile reads and writes the MSVC XML Manifest file in text mode so string patterns can be used in regular expressions. |