Hello, I do not understand why the assert is failing and why it return completely other words :

EXTRA/1 Your result:{"one":1,"two":1,"three":0,"it's":1,"ran":1,"i":0} Right result:{"it's":1,"ran":1,"i":2} Fail:popular_words("It's flying from somewhere\nAs fast as it can\nI couldn't keep up with it\nNot if I ran",["it's","ran","i"])

The same code "attached" is return the correct answer in my IDE but a different result on the website.

Any ideas ? Regards DaB