python，从列表中删除字符串中的单词

Question

I want to remove words in a string, which the words or 'seed' words in a list,

example:

query = "LK936033.1 Babesia assembly 454hybrid_PBjelly scaffold Contig1323  7"
seeds = ["assembly","454","scaffold","contig"]

expect result:

"LK936033.1 Babesia 7"

I found a way to do remove words like this:

' '.join([i for i in query.split() if i not in seeds])

but this method only removes the exact words from the seed list, but not the words containing the seeds.

Answer 1

You'll need to expand your test; use the any() function for efficiency:

' '.join([i for i in query.split() if not any(w in i.lower() for w in seeds)])

The any(w in i.lower() for w in seeds) test uses a generator expression to test if the current word contains any of the seed words, lowercased; it'll only evaluate the minimum number of tests to find a match.

Demo:

>>> query = "LK936033.1 Babesia assembly 454hybrid_PBjelly scaffold Contig1323  7"
>>> seeds = ["assembly","454","scaffold","contig"]
>>> ' '.join([i for i in query.split() if not any(w in i.lower() for w in seeds)])
'LK936033.1 Babesia 7'