main.py -> __main__.py to allow python -m labelme

labelme.spec

@@ -6,7 +6,7 @@ block_cipher = None
 
 
 a = Analysis(
-    ['labelme/main.py'],
+    ['labelme/__main__.py'],
     pathex=['labelme'],
     binaries=[],
     datas=[

setup.py

@@ -135,7 +135,7 @@ setup(
     package_data={'labelme': ['icons/*', 'config/*.yaml']},
     entry_points={
         'console_scripts': [
-            'labelme=labelme.main:main',
+            'labelme=labelme.__main__:main',
             'labelme_draw_json=labelme.cli.draw_json:main',
             'labelme_draw_label_png=labelme.cli.draw_label_png:main',
             'labelme_json_to_dataset=labelme.cli.json_to_dataset:main',