ignore missing imports mypy

Author: stgm

tests/_extensions.py

@@ -9,7 +9,7 @@
 @t.test(1000)
 def mypy_ok(test):
     def testMethod():
-        p = subprocess.run(['mypy', '--strict', test.fileName], capture_output=True, universal_newlines=True)
+        p = subprocess.run(['mypy', '--strict', '--ignore-missing-imports', test.fileName], capture_output=True, universal_newlines=True)
         return p.returncode == 0, p.stdout
 
     def report(output):