mypy: Move remaining exclusion list to config file.

This leaves the wrapper script with very little left to do!

The main thing left is finding scripts by searching for shebang lines;
mypy itself would happily do the search for importable Python files.

mypy.ini

@@ -19,6 +19,25 @@ no_implicit_optional = True
 # might ideally eliminate.
 follow_imports = silent
 
+
+#
+#
+# IGNORE ERRORS
+#
+#
+
+# We suppress all errors in a handful of files, all of them config files.
+
+[mypy-conf]  # For docs/conf.py.
+ignore_errors = True
+
+[mypy-zproject.settings]
+ignore_errors = True
+
+[mypy-zproject.test_settings]
+ignore_errors = True
+
+
 #
 #
 # IGNORE MISSING IMPORTS

tools/run-mypy

@@ -16,9 +16,6 @@ sys.path.append(os.path.dirname(TOOLS_DIR))
 from lib.test_script import get_provisioning_status
 
 exclude = """
-docs/conf.py
-zproject/settings.py
-zproject/test_settings.py
 """.split()
 
 parser = argparse.ArgumentParser(description="Run mypy on files tracked by git.")