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RT @reuvenmlerner@twitter.com

From today's class:

import re
s = 'abbcccddddeeeee'
re.findall('d{1, 4}', s)

produces

[ ]

Why? Because of the space before the 4!

I've been teaching for years, and never knew that {min,max} cared about whitespace before/after the comma.

🐦🔗: twitter.com/reuvenmlerner/stat

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