RegEx VI: Positive lookbehind

Write a regular expression that will help us count how many tall people work in your company. You must use RegEx positive lookbehind.

Example

lst = ["tall height", "tall height", "short height", "medium height", "tall height"]
pattern = "yourregularexpressionhere"

len(re.findall(pattern, ", ".join(lst))) ➞ 3

Notes

• You don't need to write a function just the pattern.
• Do not remove import re from the code.
• You can find all the challenges of this series in my Basic RegEx collection.