List and Iterations Notes

Lists

  • Already took notes on this
  • List is one of the four collection data types in Python, other 3 are called:
    • Tuple
    • Set
    • Dictionary
  • List commands:
Method Definition Examples
append() adds element to the end of the list fruits.append("watermelon")
index() returns the index of the first element with the specified value fruits.index("apple")
insert() adds element at given position fruits.insert(1, "watermelon")
remove() removes the first item with the specified value fruits.remove("strawberry")
reverse() reverses the list order fruits.reverse()
sort() sorts the list fruits.sort()
count() returns the amount of elements with the specified value fruits.count("apple)
copy() returns a copy of the list fruits.copy()
clear() removes the elements from the list fruits.clear()