Popular Words

Popular Words

Elementary+
DE English RU UK

In this mission your task is to determine the popularity of certain words in the text.

At the input of your function are given 2 arguments: the text and the array of words the popularity of which you need to determine.

When solving this task pay attention to the following points:

  • The words should be sought in all registers. This means that if you need to find a word "one" then words like "one", "One", "oNe", "ONE" etc. will do.
  • The search words are always indicated in the lowercase.
  • If the word wasn’t found even once, it has to be returned in the dictionary with 0 (zero) value.

Input: The text and the search words array.

Output: The dictionary where the search words are the keys and values are the number of times when those words are occurring in a given text.

Example:

assert popular_words(
    "\nWhen I was One\nI had just begun\nWhen I was Two\nI was nearly new\n",
    ["i", "was", "three", "near"],
) == {"i": 4, "was": 3, "three": 0, "near": 0}

Precondition:
The input text will consists of English letters in uppercase and lowercase and whitespaces.

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