When importing newly made files, we have to invalidate import caches

1 files changed, 6 insertions, 0 deletions

diff --git a/coverage/backward.py b/coverage/backward.py
index c7b607a9..8d2218d2 100644
--- a/coverage/backward.py
+++ b/coverage/backward.py
@@ -144,6 +144,12 @@ except AttributeError:
     PYC_MAGIC_NUMBER = imp.get_magic()
 
 
+def invalidate_import_caches():
+    """Invalidate any import caches that may or may not exist."""
+    if importlib and hasattr(importlib, "invalidate_caches"):
+        importlib.invalidate_caches()
+
+
 def import_local_file(modname, modfile=None):
     """Import a local file as a module.