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Available Layers » lang#python

Description

This layer is for Python development.

Features

Install

Layer

To use this configuration layer, add following snippet to your custom configuration file.

[[layers]]
  name = "lang#python"

Syntax Checking

checker layer provide syntax checking feature, and for python it uses flake8 package:

pip install --user flake8

Buffer formatting

The default key binding for formatting buffer is SPC b f, and you need to install yapf. To enable automatic buffer formatting on save, load this layer with setting format-on-save to 1.

[[layers]]
  name = "lang#python"
  format-on-save = 1
pip install --user yapf

Format imports

To be able to suppress unused imports easily, install autoflake:

pip install --user autoflake

To be able to sort your imports, install isort

pip install --user isort

Key bindings

Jump to definition

Mode Key Binding Description
normal g d Jump to the definition position of cursor symbol

Code generation

Mode Key Binding Description
normal SPC l g d Generate docstring

Inferior REPL process

Start a Python or iPython inferior REPL process with SPC l s i. If ipython is available in system executable search paths, ipython will be used to launch python shell; otherwise, default python interpreter will be used. You may change your system executable search path by activating a virtual environment.

Send code to inferior process commands:

Key Binding Description
SPC l s b send buffer and keep code buffer focused
SPC l s l send line and keep code buffer focused
SPC l s s send selection text and keep code buffer focused

Running current script

To running a python script, you can press SPC l r to run current file without loss focus, and the result will be shown in a runner buffer.

Testing

Refactoring

Key Binding Description
SPC l i r remove unused imports with autoflake
SPC l i s sort imports with isort

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