Clean dist dir prior to new build

Author: awickert

build_check_pyPI.sh

@@ -1,3 +1,11 @@
 #! /bin/sh
-python setup.py sdist bdist_wheel
+
+# Clean old files in order to not get "400 Client Error: File already exists."
+rm dist/*.tar.gz
+rm dist/*.whl
+
+# Build the new distribution
+python3 setup.py sdist bdist_wheel
+
+# Check the new distribution for a successful build
 twine check dist/*