Replace items in list, python
python, replace
Solution
You can do it without regular expressions by using `str.rsplit`:
yourlist = [s.rsplit('_', 2)[0] + '_' + x + '_' + y for s in yourlist]
See it working online: ideone
If you want to use formatting instead of string concatenation, try this:
yourlist = ['{}_{}_{}'.format(s.rsplit('_', 2)[0], x, y) for s in yourlist]
See it working online: ideone
Problem
I have a list of strings like this: ``` Item_has_was_updated_May_2010 Item_updated_Apr_2011 Item_got_updated_Sept_2011 ``` I want to iterate through the list of string and update the last 2 parts of the string. The month and the year. The rest of the string I want to remain the same. The month and year will be taken from variables I have set earlier in my script, so let's call the month x and the year y. My approach is to: - Iterate through the list of strings - Split each string by "_" - Replace the last 2 items - Join the items back together with the replaced items The month and year will be taken from variables I have set earlier in my script, so let's call the month x and the year y. If anyone can suggest a an approach, it is appreciated.