Add testpep561 test

Author: nipunn1313

test-data/packages/typedpkg_ns/setup.py renamed to test-data/packages/typedpkg_ns_a/setup.py

@@ -1,10 +1,10 @@
-from setuptools import setup, find_packages
+from setuptools import setup
 
 setup(
     name='typedpkg_namespace.alpha',
     version='1.0.0',
-    packages=find_packages(),
     namespace_packages=['typedpkg_ns'],
     zip_safe=False,
-    package_data={'typedpkg_ns.ns': ['py.typed']}
+    package_data={'typedpkg_ns.a': ['py.typed']},
+    packages=['typedpkg_ns.a'],
 )

test-data/packages/typedpkg_ns/typedpkg_ns/__init__.py renamed to test-data/packages/typedpkg_ns_a/typedpkg_ns/__init__.py

@@ -0,0 +1,14 @@
+"""
+This setup file installs packages to test mypy's PEP 561 implementation
+"""
+
+from distutils.core import setup
+
+setup(
+    name='typedpkg_ns_b-stubs',
+    author="The mypy team",
+    version='0.1',
+    namespace_packages=['typedpkg_ns-stubs'],
+    package_data={'typedpkg_ns-stubs.b': ['__init__.pyi', 'bbb.pyi']},
+    packages=['typedpkg_ns-stubs.b'],
+)

test-data/packages/typedpkg_ns/typedpkg_ns/ns/__init__.py renamed to test-data/packages/typedpkg_ns_a/typedpkg_ns/a/__init__.py

@@ -0,0 +1 @@
+def bf(a: bool) -> bool: ...

test-data/packages/typedpkg_ns/typedpkg_ns/ns/bbb.py renamed to test-data/packages/typedpkg_ns_a/typedpkg_ns/a/bbb.py

@@ -0,0 +1,10 @@
+from setuptools import setup
+
+setup(
+    name='typedpkg_namespace.beta',
+    version='1.0.0',
+    namespace_packages=['typedpkg_ns'],
+    zip_safe=False,
+    package_data={'typedpkg_ns.b': []},
+    packages=['typedpkg_ns.b'],
+)

test-data/packages/typedpkg_ns/typedpkg_ns/ns/py.typed renamed to test-data/packages/typedpkg_ns_a/typedpkg_ns/a/py.typed

@@ -0,0 +1,2 @@
+# namespace pkg
+__import__("pkg_resources").declare_namespace(__name__)