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| author | Łukasz Langa <lukasz@langa.pl> | 2016-06-11 23:42:36 (GMT) |
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| committer | Łukasz Langa <lukasz@langa.pl> | 2016-06-11 23:42:36 (GMT) |
| commit | e7f27481a895fb73408e523202345fcd9355b00c (patch) | |
| tree | e3c747f8584a0e188ead6556f0553ccb295f8164 /Lib/tarfile.py | |
| parent | b5ad54990fc74fe043c91d2a005c7c32c931bc5d (diff) | |
| download | cpython-e7f27481a895fb73408e523202345fcd9355b00c.zip cpython-e7f27481a895fb73408e523202345fcd9355b00c.tar.gz cpython-e7f27481a895fb73408e523202345fcd9355b00c.tar.bz2 | |
Issue #27194: superfluous truncate calls in tarfile.py slow down extraction
Patch by Jason Fried.
Diffstat (limited to 'Lib/tarfile.py')
| -rwxr-xr-x | Lib/tarfile.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Lib/tarfile.py b/Lib/tarfile.py index 86e1cf9..721f9d7 100755 --- a/Lib/tarfile.py +++ b/Lib/tarfile.py @@ -2150,10 +2150,10 @@ class TarFile(object): for offset, size in tarinfo.sparse: target.seek(offset) copyfileobj(source, target, size, ReadError) + target.seek(tarinfo.size) + target.truncate() else: copyfileobj(source, target, tarinfo.size, ReadError) - target.seek(tarinfo.size) - target.truncate() def makeunknown(self, tarinfo, targetpath): """Make a file from a TarInfo object with an unknown type |