Lists and Tuples Ali Taheri Sharif University of Technology Spring - - PowerPoint PPT Presentation

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Lists and Tuples Ali Taheri Sharif University of Technology Spring - - PowerPoint PPT Presentation

Apr 02, 2023 197 likes •375 views

Fu Fundamentals of Pr Programming (Py Python) Lists and Tuples Ali Taheri Sharif University of Technology Spring 2019 Outline 1. List Basics 2. List Operations 3. Lists are Mutable 4. Iterating over Lists 5. List Methods 6. Matrices

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Fu Fundamentals of Pr Programming (Py Python)

Lists and Tuples

Ali Taheri Sharif University of Technology

Spring 2019

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Outline

  • 1. List Basics
  • 2. List Operations
  • 3. Lists are Mutable
  • 4. Iterating over Lists
  • 5. List Methods
  • 6. Matrices
  • 7. Tuples

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ALI TAHERI - FUNDAMENTALS OF PROGRAMMING [PYTHON] Spring 2019

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List Basics

List is an ordered collection of values

  • Values are called elements or items

Defining Lists:

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List Basics

Accessing Elements:

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List Operations

Checking membership:

  • Using in operator

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List Operations

The + operator concatenates lists: The * operator repeats a list:

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List Operations

Slicing:

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List Operations

Deletion:

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Lists are Mutable

List items can be changed

  • We can change items using index operator
  • With the slice operator we can update a whole sub-list at once:

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  • We can also remove elements from a list by assigning an empty list:
  • And we can add elements to a list by squeezing them into an empty

slice at the desired location:

Lists are Mutable

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Just like strings:

Iteration over Lists

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Access built-in methods using dot operator:

List Methods

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Other useful methods:

List Methods

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Nested lists are often used to represent matrices

Matrices

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Tuples

Group any number of items into single values Very similar to lists

  • Except they are immutable!

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Tuples

Assignment

  • Packing:
  • Unpacking:

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