Printing a number before a word in regex

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Python

regular-expression

From resume text, I want to extract the number of years of experience of a candidate.

How I intended on obtaining this-->
Years of experience is usually mentioned as '4 Years' or '6+ years' or '4.8 year'.

What I have tried:

exp_p='[^\d]*(\d*\+? years|Years|year|Year)'

Expected Output-

'x years'

I'm getting the expected output only when the experience number is follwed by "years".


This expression works only for the first word in the series of 'or' conditions, i.e., "years" in this context. Why isn't the 'or' operator working as expecting?