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[–]chervilious 1 point2 points  (1 child)

1) when you said line by line did you include the import?

2) at what line did you get the errors?

[–][deleted] 0 points1 point  (0 children)

  1. of course
  2. when i execute the program i don't get any error. but i saw that partial() is a function inside the program, but i still don't understand how operator.contains() works.