Sp magic

spm.py

import re

sample_str = "a%3,b%2,c:4,d:5"

def spit_sort(inp_str, delims = ['%',':']):
    base_list = inp_str.split(",")

    split_pattern = '|'.join(map(re.escape,delims))

    print(split_pattern)

    sorted_by_number = sorted(base_list, key= lambda x: int(re.split(split_pattern,x)[1]))

    min_num_alpha = [re.split(split_pattern,spnumber)[0] for spnumber in sorted_by_number][:2]
    print(min_num_alpha)




if __name__ == "__main__":
    spit_sort(sample_str)