Python file handling

Code pattern

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Definition

open(filename, mode) with modes r (read), w (write, overwrites), a (append); use with to close the file automatically; read(), readline(), write().

Example

with open("data.txt") as f: lines = f.readlines()

Found in: course specifications, school notes.

Where you'll use it in the test

Syllabus area: Code patterns.

Question types it can appear in

Python: Write or complete it in the online Python tool.
Code reading: Code or algorithm reading: interpret a fragment and state its output or purpose.

How to use it

A model sentence

General advice, built from the definition and example above

Code pattern: “open(filename, mode) with modes r (read), w (write, overwrites), a (append); use with to close the file automatically; read(), readline(), write().” Then apply it: with open("data.txt") as f: lines = f.readlines()

In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.

Go deeper

Flashcard: Python file handling in Code Patterns: Pseudocode, Python, SQL, CSS (Years 11 and 12) · study that set
Memorise: Python basics: input, selection, loops, strings
Full term page: every question, note and marking comment for Python file handling

Check yourself

Write or say the “Python file handling” pattern from memory: the syntax and what it does.

Reveal the answer

open(filename, mode) with modes r (read), w (write, overwrites), a (append); use with to close the file automatically; read(), readline(), write().

Example: with open("data.txt") as f: lines = f.readlines()

Could be tested as: Python, Code reading.