关于拆分（Python函数）

Question

My question is about split function

I have a tuple:

name = 'test_1_1', 'test_1_2', 'test_1_3-4-5'...

I want to get to something like this:

['test_1_1', 'test_1_2', 'test_1_3', 'test_1_4', 'test_1_5']

How could I do that?

Answer 1

Your question is pretty invalid but,

Does this work for you:

names = 'test_1_1', 'test_1_2', 'test_1_3-4-5'                                        

res = [] 
for name in names: 
    if '-' not in name: 
        res.append(name) 
        continue 
    parts = name.split('_') 
    for sub in parts[2].split('-'): 
        res.append(f'{parts[0]}_{parts[1]}_{sub}') # This is what makes sense to me but maybe you want the following: 
        # res.append(f'{parts[0]},{parts[1]},{sub}')



print(res)

output:

['test_1_1', 'test_1_2', 'test_1_3', 'test_1_4', 'test_1_5']

Answer 2

Assuming that your string is indeed a tuple , you can use:

import re

name = 'test_1_1', 'test_1_2', 'test_1_3-4-5'
new_name = [re.split(r"[_-]", x) for x in name]
# [['test', '1', '1'], ['test', '1', '2'], ['test', '1', '3', '4', '5']]

Or, and because I didn't fully understand your question, you may need:

new_name = [re.sub(r"[_-]", ",", x) for x in name ]
# ['test,1,1', 'test,1,2', 'test,1,3,4,5']

Demo