Add console scripts (#3074)

Use entry_points instead of custom scripts (but custom scripts remain in case they are still useful).

Author: emmatyping

mypy/__main__.py

@@ -2,4 +2,10 @@
 
 from mypy.main import main
 
-main(None)
+
+def console_entry() -> None:
+    main(None)
+
+
+if __name__ == '__main__':
+    main(None)

scripts/stubgen

@@ -94,9 +94,6 @@ def run(self):
 
 package_dir = {'mypy': 'mypy'}
 
-scripts = ['scripts/mypy', 'scripts/stubgen']
-if os.name == 'nt':
-    scripts.append('scripts/mypy.bat')
 
 # These requirements are used when installing by other means than bdist_wheel.
 # E.g. "pip3 install ." or
@@ -119,7 +116,8 @@ def run(self):
       package_dir=package_dir,
       py_modules=[],
       packages=['mypy'],
-      scripts=scripts,
+      entry_points={'console_scripts': ['mypy=mypy.__main__:console_entry',
+                                        'stubgen=mypy.stubgen:main']},
       data_files=data_files,
       classifiers=classifiers,
       cmdclass={'build_py': CustomPythonBuild},