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PEP8 VS flake8

Compare PEP8 VS flake8 and see what are their differences

PEP8 logo PEP8

pep8 is a tool to check your Python code against some of the style conventions in PEP 8.

flake8 logo flake8

A wrapper around Python tools to check the style and quality of Python code.
Not present
  • flake8 Landing page
    Landing page //
    2022-12-20

PEP8 features and specs

  • Consistency
    PEP 8 provides a consistent style guide that helps maintain uniformity across Python codebases, which is particularly beneficial in collaborative environments. This makes it easier for developers to read and understand code written by others.
  • Readability
    By following PEP 8, code becomes more readable and understandable, with a clearer structure and better formatting. This reduces the cognitive load on developers, enabling them to focus on logic rather than syntax.
  • Improved Collaboration
    With a common style guide like PEP 8, teams can collaborate more effectively because everyone follows the same set of rules, reducing misunderstandings and the effort needed to adapt to different coding styles.
  • Tool Support
    Many development tools and linters automatically check for PEP 8 compliance, helping developers to quickly spot and fix deviations from the style guide, leading to more consistent code.
  • Community Consensus
    PEP 8 is widely accepted across the Python community, providing a community-endorsed standard that aligns with Python's philosophy, promoting code quality and best practices.

Possible disadvantages of PEP8

  • Flexibility Constraints
    While PEP 8 promotes consistency, it may sometimes limit flexibility and creativity in coding style, as developers have to adhere to specific formatting rules even when alternative styles may be more suitable for a particular project or context.
  • Learning Curve
    Developers new to PEP 8 standards must invest time to learn and internalize these guidelines, which can initially slow down coding and impact productivity until they become familiar with the style guide.
  • Overhead for Small Projects
    For small projects or scripts where rapid development is a priority over maintainability or collaboration, strictly adhering to PEP 8 can introduce unnecessary overhead.
  • Subjectivity and Disagreements
    Although PEP 8 aims to provide clarity, some guidelines can be subjective, leading to disagreements or confusion about the best way to implement specific rules, particularly in nuanced scenarios.

flake8 features and specs

  • Comprehensive Style Guide Enforcement
    Flake8 helps maintain code standards by checking for adherence to PEP 8, which is the official style guide for Python code. This ensures consistency and readability across large codebases.
  • Plugin Support
    Flake8's modular design allows for the addition of plugins, meaning you can customize and extend its functionality to enforce additional rules or standards specific to your project.
  • Ease of Use
    It's straightforward to install and use Flake8, which integrates easily into most workflows, whether it's via command line or integration with text editors and IDEs.
  • Error Detection
    Flake8 combines several tools into a single package to detect syntax errors, undefined names, and other issues in Python code, thus improving code quality.

Possible disadvantages of flake8

  • False Positives
    Flake8 might sometimes generate false positives, particularly when used in complex or non-standard code scenarios, which can lead to time spent verifying whether an issue is genuine.
  • Performance
    For very large projects, running Flake8 can be resource-intensive, potentially slowing down the development process as it parses large amounts of code.
  • Configuration Overhead
    While customizable, configuring Flake8 to fit the specific needs of a project may require significant initial effort, especially when tailoring the rules and integrating with various tools.
  • Not a Full Linter Replacement
    Flake8 is focused on style and simple static analysis; it doesn't cover deeper static analysis tasks, such as type checking or advanced linting, which might necessitate supplementary tools.

PEP8 videos

pep8.org — The Prettiest Way to View the PEP 8 Python Style Guide

flake8 videos

Linters and fixers: never worry about code formatting again (Vim + Ale + Flake8 & Black for Python)

More videos:

  • Review - flake8 на максималках: что, как и зачем / Илья Лебедев

Category Popularity

0-100% (relative to PEP8 and flake8)
Code Analysis
46 46%
54% 54
Code Coverage
42 42%
58% 58
Code Quality
48 48%
52% 52
Code Review
44 44%
56% 56

User comments

Share your experience with using PEP8 and flake8. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, flake8 seems to be more popular. It has been mentiond 5 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

PEP8 mentions (0)

We have not tracked any mentions of PEP8 yet. Tracking of PEP8 recommendations started around Mar 2021.

flake8 mentions (5)

  • How I start every new Python backend API project
    Repos: - repo: https://github.com/pre-commit/pre-commit-hooks rev: v4.3.0 hooks: - id: trailing-whitespace - id: check-merge-conflict - id: check-yaml args: [--unsafe] - id: check-json - id: detect-private-key - id: end-of-file-fixer - repo: https://github.com/timothycrosley/isort rev: 5.10.1 hooks: - id: isort - repo:... - Source: dev.to / over 2 years ago
  • Flake8 took down the gitlab repository in favor of github
    I just ran `pre-commit autoupdate`. It's asking for a username for https://gitlab.com/pycqa/flake8. :-(. Source: over 2 years ago
  • flake8-length: Flake8 plugin for a smart line length validation.
    Flake8 plugin for a smart line length validation. Source: over 2 years ago
  • Make your Django project newbie contributor friendly with pre-commit
    $ pre-commit install Pre-commit installed at .git/hooks/pre-commit $ git add .pre-commit-config.yaml $ git commit -m "Add pre-commit config" [INFO] Initializing environment for https://github.com/pre-commit/pre-commit-hooks. [INFO] Initializing environment for https://gitlab.com/pycqa/flake8. [INFO] Initializing environment for https://github.com/pycqa/isort. [INFO] Initializing environment for... - Source: dev.to / almost 4 years ago
  • On unit testing
    If you're looking for just good automated error checking, I personally use a bunch of flake8 plugins via pre-commit hooks: flake8-bugbear, flake8-builtins, flake8-bandit, etc. You can find a bunch of sites that give recommended plugins and you just need to pick which ones you care about :). Source: about 4 years ago

What are some alternatives?

When comparing PEP8 and flake8, you can also consider the following products

PyLint - Pylint is a Python source code analyzer which looks for programming errors.

SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.

PyFlakes - A simple program which checks Python source files for errors.

Pyright - Static type checker for Python. Contribute to microsoft/pyright development by creating an account on GitHub.

mypy - Mypy is an experimental optional static type checker for Python that aims to combine the benefits of dynamic (or "duck") typing and static typing.

PyChecker - Python source code checking tool.