main: add entrypoint

Signed-off-by: Filipe Laíns <[email protected]>

Author: FFY00

pyproject.toml

@@ -14,3 +14,6 @@ requires = [
   "configparser >= 3.5; python_version < '3'",
   "importlib-resources; python_version < '3.7'",
 ]
+
+[tool.flit.scripts]
+python-installer = "installer.__main__:entrypoint"

src/installer/__main__.py

@@ -85,5 +85,10 @@ def main(cli_args, program=None):
         installer.install(source, destination, {})
 
 
+def entrypoint():  # type: () -> None
+    """CLI entrypoint."""
+    main(sys.argv[1:])
+
+
 if __name__ == "__main__":
     main(sys.argv[1:], "python -m installer")