Move code from lib3 to lib

.gitignore

@@ -2,7 +2,6 @@
 /dist/*
 /build/*
 /lib/PyYAML.egg-info/*
-/lib3/PyYAML.egg-info/*
 /wheelhouse/*
 /yaml/_yaml.c
 MANIFEST

MANIFEST.in

@@ -1,10 +1,7 @@
 include CHANGES README LICENSE Makefile pyproject.toml setup.py
 recursive-include lib/yaml *.py
 recursive-include lib/_yaml *.py
-recursive-include lib3/yaml *.py
-recursive-include lib3/_yaml *.py
 recursive-include examples *.py *.cfg *.yaml
 recursive-include tests/data *
 recursive-include tests/lib *.py
-recursive-include tests/lib3 *.py
 recursive-include yaml *

setup.py

@@ -247,7 +247,7 @@ class test(Command):
         build_cmd = self.get_finalized_command('build')
         build_cmd.run()
         sys.path.insert(0, build_cmd.build_lib)
-        sys.path.insert(0, 'tests/lib3')
+        sys.path.insert(0, 'tests/lib')
         import test_all
         if not test_all.main([]):
             raise DistutilsError("Tests failed")
@@ -277,7 +277,7 @@ if __name__ == '__main__':
         classifiers=CLASSIFIERS,
         project_urls=PROJECT_URLS,
 
-        package_dir={'': 'lib3'},
+        package_dir={'': 'lib'},
         packages=['yaml', '_yaml'],
         ext_modules=[
             Extension('yaml._yaml', ['yaml/_yaml.pyx'],