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-rw-r--r--Lib/copy_reg.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/copy_reg.py b/Lib/copy_reg.py
index e35d95e..c9c34c3 100644
--- a/Lib/copy_reg.py
+++ b/Lib/copy_reg.py
@@ -87,7 +87,7 @@ _extension_cache = {} # code -> object
def add_extension(module, name, code):
"""Register an extension code."""
code = int(code)
- if not 1 <= code < 0x7fffffff:
+ if not 1 <= code <= 0x7fffffff:
raise ValueError, "code out of range"
key = (module, name)
if (_extension_registry.get(key) == code and