Simply copy your script and put under """ your entire code """ ...
specify this line in a variable.. like,
a = """ your entire code """
print a.replace(' ',' ') # first 4 spaces tab second four space from space bar
print a.replace('here please press tab button it will insert some space"," here simply press space bar four times")
# here we replacing tab space by four char space as per pep 8 style guide..
now execute this code, in sublime using ctrl+b, now it will print indented code in console. that's it