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-rw-r--r--server/problems.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/server/problems.py b/server/problems.py
index 02f0307..1c87345 100644
--- a/server/problems.py
+++ b/server/problems.py
@@ -19,6 +19,9 @@ def load_module(fullname):
d = os.path.join(_path_prefix, *parts[:-1])
ff = importlib.machinery.FileFinder(d, (importlib.machinery.SourceFileLoader, ['.py']))
spec = ff.find_spec(fullname)
+ if spec is None:
+ print('ERROR: there is no problem module {0}'.format(fullname))
+ return None
mod = type(sys)(fullname)
mod.__loader__ = spec.loader
mod.__package__ = spec.parent