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import re

l1 = ["abc", "abx", "bcd", "bcbdd", "f21fa", "f14"]
print("Origin:\n",l1)

l2 = list(filter(lambda x:re.match("ab|bc.*", x), l1))
print("Filtered:\n",l2)

> Origin:
> ['abc', 'abx', 'bcd', 'bcbdd', 'f21fa', 'f14']
> Filtered:
> ['abc', 'abx', 'bcd', 'bcbdd']