When making a python project python 3 only, I decided to delete the lines giving the encoding of the files. All files were in UTF-8 and it is the default encoding in python 3.
I wrote this little script to get the job done.
for file in $(find chsdi/ -name \*.py); do # Remove coding line sed -i '/^# *-\*- .*coding: utf-8 -\*-/d' $file # Remove whitespace line after it if it exists if head -n 1 $file | grep '^$'; then sed -i '1d' $file fi done