adding feature of python setup.py clean where it will delete the desi…

…gnated build files stated in .clean which is Build/ build/ and others

.clean

@@ -0,0 +1,21 @@
+Build
+build
+Debug
+Release
+lib
+__pycache__
+.idea
+.*.sw[po]
+*~
+*.pyc
+*.pyd
+*.pyo
+*.egg-info
+dist
+setuptools*egg
+setuptools.pth
+distribute*egg
+distribute*tar.gz
+*.so
+*.o
+*.log

versioneer.py

@@ -1647,6 +1647,25 @@ def make_release_tree(self, base_dir, files):
                                   self._versioneer_generated_versions)
     cmds["sdist"] = cmd_sdist
 
+    import distutils.command.clean
+    import shutil
+
+    class cmd_clean(distutils.command.clean.clean):
+        def run(self):
+            import glob
+            with open('.clean', 'r') as f:
+                ignores = f.read()
+                for wildcard in filter(bool, ignores.split('\n')):
+                    for filename in glob.glob(wildcard):
+                        try:
+                            os.remove(filename)
+                        except OSError:
+                            shutil.rmtree(filename, ignore_errors=True)
+
+            # It's an old-style class in Python 2.7...
+            distutils.command.clean.clean.run(self)
+    cmds["clean"] = cmd_clean
+
     return cmds