What is the memory-friendly way to read a large text file?

Problem Statement

Explanation

Iterating over the file object streams one line at a time. Memory stays small even for gigabyte files. Calling read or readlines pulls the entire content or many lines into memory and can cause spikes.

Code Solution

SolutionRead Only

with open('big.log','r',encoding='utf-8') as f:
    for line in f:
        handle(line)

Practice Sets

This question appears in the following practice sets:

File Handling & Modules

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What is the memory-friendly way to read a large text file?

Problem Statement

Explanation

Code Solution

Practice Sets

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Master Interviews Anywhere, Anytime

What is the memory-friendly way to read a large text file?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Is Python compiled, interpreted, or both?

Which of these joins two lists to make one new list?

Which loop runs until a condition becomes false?

Which method gives the floor value of a float?

In Python, what is the difference between '/' and '//'?

More from Python

Master Interviews
Anywhere, Anytime