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-rw-r--r--coverage/collector.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/coverage/collector.py b/coverage/collector.py
index 2abec169..9a74700d 100644
--- a/coverage/collector.py
+++ b/coverage/collector.py
@@ -75,10 +75,11 @@ class PyTracer(object):
# in this file.
self.data_stack.append((self.cur_file_data, self.last_line))
filename = frame.f_code.co_filename
- tracename = self.should_trace_cache.get(filename)
- if tracename is None:
+ if filename not in self.should_trace_cache:
tracename = self.should_trace(filename, frame)
self.should_trace_cache[filename] = tracename
+ else:
+ tracename = self.should_trace_cache[filename]
#print("called, stack is %d deep, tracename is %r" % (
# len(self.data_stack), tracename))
if tracename: