FIX: Replace internal comment character to " (from ').

This way strings in Python are like this: '.... "..." ...'.

Change-Id: Ic084a4480f5f1b83cec84904a3670318aa504945
Move VTK: Replace " with '

Change-Id: Ic3dcbb94520e6449f6b7e27f934095f9953db914
Merge topic 'python-calc-15125' into next

1cb14a1c Move VTK: Replace " with '
a5ccd947 FIX: Replace internal comment character to " (from ').