PYTHON

Split a list based on a condition

good, bad = [], []
for x in mylist:
    (bad, good)[x in goodvals].append(x)
    
# good.append(x) if x in goodvals else bad.append(x)
# for x in mylist: (good if isgood(x) else bad).append(x)
# (good if x in goodvals else bad).append(x)

how to split string into list conditionally+python

import re
pattern = r'(?<!):'
s = 'I:would:like:to:find:out:how:this:works'
print(re.split(pattern, s))

Split a list based on a condition

good = [x for x in mylist if x in goodvals]
bad  = [x for x in mylist if x not in goodvals]