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-rw-r--r--Lib/zipfile.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index 4e7ea10..c0a0fe5 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -354,7 +354,7 @@ class ZipFile:
def _writecheck(self, zinfo):
"""Check for errors before writing a file to the archive."""
- if self.NameToInfo.has_key(zinfo.filename):
+ if zinfo.filename in self.NameToInfo:
if self.debug: # Warning for duplicate names
print "Duplicate name:", zinfo.filename
if self.mode not in ("w", "a"):