The Python Book
 
format string
20190731

Python string format

Following snap is taken from here: mkaz.blog/code/python-string-format-cookbook. Go there, there are more examples

reverse string
20151011

Reverse the words in a string

Tactic:

  1. reverse the whole string
  2. reverse every word on its own

Code:

s="The goal is to make a thin circle of dough, with a raised edge."

r=' '.join([ w[::-1] for w in s[::-1].split(' ')  ]) 

The notation s[::-1] is called extended slice syntax, and should be read as [start:end:step] with the start and end left off.

Note: you also have the reversed() function, which returns an iterator:

s='circumference'
''.join(reversed(s))

'ecnerefmucric'
 
Notes by Willem Moors. Generated on momo:/home/willem/sync/20151223_datamungingninja/pythonbook at 2019-07-31 19:22