EMACS Configuration Python Programming environment

The Python programming environment setting involves: auto-completion, syntax checking, and virtual environments.

In order not to mess up the system, install the relevant plugin in Python's virtual environment.

First, install the Python virtual environment virtualenvwrapper

sudo apt-get virtualenvwrapper

Then create a virtual environment:

Test

Let's start with the test in this virtual environment:
First look at what packages are available:

$ pip listpip (1.5. 6 ) Setuptools (5.5. 1)

You can see only 2 packages.

The following is the beginning of installation in a virtual environment!

Second, in the virtual environment to install the relevant package Jedi, Pylint

Install

Description
Jedi---------Python auto-complete;
Pylint-------The grammar check of Python;

After installation, look at what's loaded:

$ pip Listastroid (1.3.6) Jedi (0.9.0) Logilab-common (0.63.2)Pip (  1.5. 6 )pylint (1.4.3)setuptools (5.5. 1 )Six (1.9.0)

Third, install the relevant plug-ins in Emacs Elpy, Flycheck,Company-jedi,virtualenvwrapper

M-x package-list-packages

Installation

1. Elpy
2. Flycheck
3. Company-jedi
4. Virtualenvwrapper

Iv. Modifying the Emacs configuration file

 ;; add a warehouse (Require'Package )(Setq package-archives'(("GNU"."http://elpa.gnu.org/packages/")             ("Melpa"."http://melpa.milkbox.net/packages/")) ) ( package-Initialize)
;; auto-complete : Company (Require'Company )(Add-hook'After-init-hook'global-company-mode); global Open(setq Company-show-numbers t); show serial number(setq Company-idle-delay0.2); menu Delay(setq Company-minimum-prefix-length1)start to complete the word count. ;; elpy---lead (Require'elpy)(elpy-enable) ;; Grammar check: Flycheck (Add-hook'After-init-hook #'global-flycheck-mode), Global open; close Flymake, using Flycheck (when (Require'flycheck Nil T)(Setq elpy-modules (DELQ'elpy-module-flymake elpy-modules))(Add-hook'Elpy-mode-hook'flycheck-mode)) ;; Virtual environment: Virtualenv Wrapper(Require'virtualenvwrapper)(venv-initialize-interactive-shells) (Venv-initialize-Eshell) (Setq venv-location"~/pyvirtualenv/"); Set the virtual environment directory;; If there are multiple directories:;; (Setq venv-location'("~/myvenv-1/";;"~/myvenv-2/"));; M-X Venv-workon Open Virtual Environment

This is the simplest Python programming environment to configure.

Note: Add the following 2 lines to the. bashrc file in your home directory

#tells Virtualenvwrapper where to store the Virtualenvs that would be created and used. Export Workon_home=~/p Yvirtualenv/usr/share/virtualenvwrapper/virtualenvwrapper. SH

pyvirtualenv is the directory where the virtual environment is placed and can be changed to the name you want. This makes the virtualenvwrapper more flexible to use.

RELATED Links: https://github.com/jorgenschaefer/elpyhttp://www.pylint.org/#myCarousel

EMACS Configuration Python Programming environment