CAS CS 111 Lecture Notes - Lecture 9: 5,6,7,8, Boolean Expression, List Comprehension

• School: Boston University
• Department: Computer Science
• Course: CAS CS 111
• Professor: David Sullivan

Document Summary

He then tells the person behind him that he is the first, and then that person take the number and plus one then pass it back until it reaches you. >>> 30 map(function, sequence) take a list of values and apply them to the function. list(map(triple, python")) [ python", python", python"] list turn into a list for me. [ ppp", yyy" , , nnn"] list comprehension with boolean expressions. [expression for variable in sequence if boolean] boolean expression means something that gives you true or false. [1 for x in [4, 5, 6, 7, 8] if x % 4 == 0] 1, 1 sum([1 for x in [4, 5, 6, 7, 8] if x % 4 == 0]) 2 how many things in the list meet a certain criteria when combining sum and list comprehension using the expression of [1 for ]