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Section 27.9 Chapter Concept Summary

This chapter included the following concepts from computing.
  • Append- To append means to add something to the end
  • List- A list holds items in order. An example of a list is [1, "hi", 3]. Lists in Python can hold any type of data.
  • Index- The index is the position of the item in a list or string. In Python the first item is at index 0.

Subsection 27.9.1 Summary of Python Keywords and Functions

  • len- The len (length) function returns the number of items in a collection (a string or a list). It is used like: len(list)
  • append- Adds an item to the end of a list: list.append(item)
  • insert- Adds an item to the specified position of a list: list.insert(0, item) adds the item at the start of the list.
  • pop- Removes an item from the specified position of a list: list.pop(1) removes the second item (index 1). When called without an index, list.pop(), it removes the last thing.
  • remove- Removes the first copy of the specified item from the list. list.remove("A") would remove the first “A” from the list.
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