检查字符串值的子字符串包括python中的任何字典单词

Question

I am wondering that there is any function in Python to check substrings of a string value including any dictionary words.

ex. check_str = "!$#apple!ed"

check_str includes "apple" which is a dictionary word, and I want to check if there is any way we can check that.

Answer 1

This is borderline natural language processing, but a naive solution is to load up a list of valid words from a text file, split the string into chunks of alphabetical characters and look each one up in the dictionary.

>>> import re
>>> import requests
>>> s = "!$#apple!ed"
>>> url = "https://raw.githubusercontent.com/dwyl/english-words/master/words_dictionary.json"
>>> words = requests.get(url).json()
>>> alpha_chunks = re.findall(r"[a-z]+", s, re.I)
>>> [x for x in alpha_chunks if x.lower() in words]
['apple', 'ed']

It turns out "ed" is a perfectly valid dictionary word in addition to "apple" , so if you intend to reject that, use a word list that suits your needs. Also, the dictionary requested above is 6 mb, so you'd likely want to cache it depending on what your use case is.