Have mypy show error codes

PeterJCLaw · PeterJCLaw · commit 64b6d2ad78fd · 2021-12-01T18:59:01.000Z
diff --git a/setup.cfg b/setup.cfg
@@ -68,6 +68,7 @@ strict_optional = True
 
 warn_redundant_casts = True
 warn_unused_ignores = True
+show_error_codes = True
 # Should turn this on once we have our own annotations in place
 # warn_return_any = True
 warn_unreachable = True
