fix: protect fullcoverage against lineno=None, bpo46911

https://bugs.python.org/issue46911

1 files changed, 4 insertions, 10 deletions

diff --git a/coverage/fullcoverage/encodings.py b/coverage/fullcoverage/encodings.py
index b248bdbc..b8841866 100644
--- a/coverage/fullcoverage/encodings.py
+++ b/coverage/fullcoverage/encodings.py
@@ -35,20 +35,14 @@ class FullCoverageTracer:
 
     def fullcoverage_trace(self, *args):
         frame, event, arg = args
-        self.traces.append((args, frame.f_lineno))
+        if frame.f_lineno is not None:
+            # https://bugs.python.org/issue46911
+            self.traces.append((args, frame.f_lineno))
         return self.fullcoverage_trace
 
 sys.settrace(FullCoverageTracer().fullcoverage_trace)
 
-# In coverage/files.py is actual_filename(), which uses glob.glob.  I don't
-# understand why, but that use of glob borks everything if fullcoverage is in
-# effect.  So here we make an ugly hail-mary pass to switch off glob.glob over
-# there.  This means when using fullcoverage, Windows path names will not be
-# their actual case.
-
-#sys.fullcoverage = True
-
-# Finally, remove our own directory from sys.path; remove ourselves from
+# Remove our own directory from sys.path; remove ourselves from
 # sys.modules; and re-import "encodings", which will be the real package
 # this time.  Note that the delete from sys.modules dictionary has to
 # happen last, since all of the symbols in this module will become None