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-rw-r--r--src/engine/SCons/Memoize.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/engine/SCons/Memoize.py b/src/engine/SCons/Memoize.py
index 55a10ba..afa77ee 100644
--- a/src/engine/SCons/Memoize.py
+++ b/src/engine/SCons/Memoize.py
@@ -796,7 +796,7 @@ else:
import inspect # It's OK, can't get here for Python < 2.1
superinitcode = compile(
"lambda self, *args, **kw: MPI(self, cls, args, kw)",
- inspect.getsourcefile(_MeMoIZeR_superinit),
+ inspect.getsourcefile(_MeMoIZeR_superinit) or '<unknown>',
"eval")
superinit = eval(superinitcode,
{'cls':cls,