add some comments to the refactored scripts to explain technical details

python/makewheel.py

@@ -2,6 +2,7 @@
 
 import sys,os,shutil
 
+# find python script to activate the virtual environment and source it
 if sys.platform == 'win32':
   virtenv=os.path.join('buildwheel','Scripts','activate_this.py')
 else:
@@ -9,7 +10,9 @@ else:
 
 exec(open(virtenv).read(), {'__file__': virtenv})
 
+# update pip and install all requirements to build the wheel
 os.system('python -m pip install --upgrade pip')
 os.system('python -m pip install --upgrade -r wheel_requirements.txt')
+
 print("Building new binary wheel")
 os.system('python -m build -n --wheel -o .')