Input()
input() is a Python built-in function that optionally displays a prompt, reads a line from standard input, and returns it as a string.
A Pythonic Adventure: From Python basics to a working web app
The Python input function optionally displays a prompt, waits for user text, and returns the entered text.
- How it is used
- Collects user responses for interactive programs such as a coffee-shop order form.
- How deep it goes
- Explains prompting, keyboard entry, returned text, variable assignment, and dictionary storage without descending into implementation internals.
- Examples
- Uses name, drink, flavor, topping, coffee-shop prompts, and a get_order() function as concrete examples.
- What you can do after
- Build it from scratch by collecting user text, saving responses, and incorporating them into printed output or dictionaries.
Read how A Pythonic Adventure: From Python basics to a working web app explains input() →
Python Workout, Second Edition
The input function reads a line of text from standard input, optionally displaying a prompt, and returns it as a string.
- How it is used
- Deploys input() for interactive exercises that collect user responses and feed loops, comparisons, calculations, or dictionary updates.
- How deep it goes
- Explains prompting, string results, conversion, repeated input, empty responses, and validation, but does not descend into input internals.
- Examples
- Uses a number guessing game, a name greeting, a repeated-thoughts loop, and rainfall collection with numeric validation.
- What you can do after
- Build interactive Python programs that prompt users, convert responses, retry invalid input, and terminate after a successful condition.
Python Workout: 50 ten-minute exercises
input is a Python built-in function that displays a prompt and returns the user's response as a string.
- How it is used
- Collects user responses for interactive programs before subsequent comparison, calculation, or display.
- How deep it goes
- Defines prompting and string return behavior, then develops conversion, empty-input handling, and validation without covering implementation internals.
- Examples
- Uses a greeting, a number-guessing game, repeated thought prompts, and validated floating-point entry.
- What you can do after
- Apply it via Python prompts, convert responses for computation, and reject invalid numeric input.
Read how Python Workout: 50 ten-minute exercises explains input() →
Practices of the Python Pro
The input function is a Python built-in function that reads a line of text from standard input and returns it as a string.
- How it is used
- Captures menu selections and data needed to connect presentation-layer interaction with application commands.
- How deep it goes
- Demonstrates prompts, validation loops, case handling, and reusable field collection without examining input internals.
- Examples
- Uses menu choices, bookmark titles, URLs, notes, and deletion IDs as interactive input.
- What you can do after
- Build it from scratch to create validated command-line prompts and collect required or optional values.
Get Programming: Learn to code with Python
The input function is a Python built-in function that displays an optional prompt, waits for user text, and returns the entered text as a string.
- How it is used
- Collects user responses to guide calculations, computations, operations, and interactive program behavior.
- How deep it goes
- Explains prompts, waiting, assignment, and numeric conversion through short examples, without extending beyond basic input handling.
- Examples
- Uses prompts for names, secrets, colors, cities, numbers, and multiple-number multiplication.
- What you can do after
- Build interactive programs that collect responses, store them, transform text, convert numbers, and calculate results.
Read how Get Programming: Learn to code with Python explains input() →
Learn AI-Assisted Python Programming, Second Edition
The Python input function reads a line of text from an input stream, typically the user's keyboard, and returns it as a string.
- How it is used
- Uses input() to acquire user data before a program processes it and communicates results.
- How deep it goes
- Explains prompts, string returns, numeric conversion, and placement in input-process-output design, but not input-stream internals.
- Examples
- Demonstrates name collection, age classification, and user-provided words for spelling suggestions.
- What you can do after
- Apply it via Python to collect keyboard text and feed that value into later processing.
Read how Learn AI-Assisted Python Programming, Second Edition explains input() →
The Quick Python Book, Fourth Edition
input() is Python's built-in function for obtaining a line of text from the user through standard input.
- How it is used
- Collects command-line user input for simple utilities, interactive programs, testing, and selected redirection workflows.
- How deep it goes
- Explains prompts, line termination, string results, numeric conversion, and standard streams, while deferring lower-level access to sys.
- Examples
- Demonstrates name and age prompts, integer conversion, decimal conversion, invalid input, and reading through sys.stdin.readline().
- What you can do after
- Apply it via prompts, convert returned text to numeric types, and choose sys.stdin for lower-level or redirected input.
Read how The Quick Python Book, Fourth Edition explains input() →
Related concepts
- stringproduces · A string is a programming-language value representing an ordered sequence of characters or character units as text.
- standard inputuses · Standard input is the conventional input stream through which a process receives data from its execution environment or an attached source.
- string moduleproduces · The string module is a Python standard-library module providing constants and utilities for processing text and character classes.
- promptconfigured by · An input, typically containing instructions or context, supplied to an artificial-intelligence model to guide or elicit its output.
- variableproduces · A variable is a named program binding or entity associated with a value that can be accessed and, when permitted, changed during computation.
- command-line interfaceuses · A command-line interface is a text-based interface through which users or programs interact with software or a computer by entering commands and receiving output.
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