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-rw-r--r--cffi/verifier.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/cffi/verifier.py b/cffi/verifier.py
index 59b78c2..a500c78 100644
--- a/cffi/verifier.py
+++ b/cffi/verifier.py
@@ -50,7 +50,8 @@ class Verifier(object):
if tag:
raise TypeError("can't specify both 'modulename' and 'tag'")
else:
- key = '\x00'.join([sys.version[:3], __version_verifier_modules__,
+ key = '\x00'.join(['%d.%d' % sys.version_info[:2],
+ __version_verifier_modules__,
preamble, flattened_kwds] +
ffi._cdefsources)
if sys.version_info >= (3,):