Add a working entrypoint again.

docker_rerun.py

@@ -317,5 +317,9 @@ def main(argv, out):
             subprocess.check_call(command)
 
 
-if __name__ == "__main__":
+def entrypoint():
+    """Entrypoint for script use."""
     main(sys.argv[1:], sys.stdout)
+
+if __name__ == "__main__":
+    entrypoint()

setup.py

@@ -55,7 +55,7 @@ setup(
 
     entry_points={
         'console_scripts': [
-            'docker-rerun=docker_rerun:main',
+            'docker-rerun=docker_rerun:entrypoint',
         ],
     },
 )