import re

pattern = re.compile(r"(-)")
pattern.split("hello-word")


ab0fdb11745a476e6918190f5947b2ac52b0a4cb
<mask token>

<mask token>
pattern.split('hello-word')

<mask token>
pattern = re.compile('(-)')
pattern.split('hello-word')

import re
pattern = re.compile('(-)')
pattern.split('hello-word')

import re

pattern = re.compile(r"(-)")
pattern.split("hello-word")

