How to build a new python virtual environment on Ubuntu

Purpose

When you start a new python project, organize the steps to prepare the virtual environment as a memorandum.

Execution environment

Host OS: Windows 10 pro Virtualization software: VirtualBox 6.0 Guest OS: Linux Ubuntu 18.04 Integrated development environment: VS Code 1.44.2

Virtual environment construction procedure

Using venv is convenient because the packages introduced by pip can be made independent for each project. However, the version of python itself cannot be managed, so use another tool such as pyenv if necessary. (Explanation is omitted here)

1. 1. Create a virtual environment

$ mkdir {new_project_name}
$ cd {new_project_name}
$ python3 -m venv {venv_name} //venv_The name can be anything, but in principle it is venv because it is easy to use.

If the following error message is displayed, the python3-venv package is not installed, so install it with the apt command.

The virtual environment was not created successfully because ensurepip is not
available.  On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.
apt-get install python3-venv

$ apt install python3-venv

2. Create a VS Code workspace

Follow the steps below to create a setting file and save it as a new workspace.

1. 1. Open VS Code with the following command

$ cd {Project_Directory}   // new_Move to the project directory
$ code .  //Open VS Code

2. Create a .gitignore file

$ echo "/venv" > .gitignore

3. 3. Save as workspace Select File >> Save Workspace As ... to open the save window. Enter the workspace name and save.

From now on, you can open the workspace with the following command

$ cd { Project_Directory }    // new_Move to the project directory
$ code {new_workspace_name}.code-workspace

3. 3. Create a repository on github

Create a new repository from the github website. Please refer to "4, Create a new repository on github" on the following site.

Add new repository to Github https://qiita.com/sodaihirai/items/caf8d39d314fa53db4db

Four. Link the local environment with the github repository (how to use the terminal)

Execute the following command from the terminal.

// 
cd { Project_Directory }    // new_Move to the project directory
git init
git add .
git commit -m "first commit"
git remote add origin https://github.com/{ User_Name }/{ Repository_Name }.git
git push -u origin master

You will be prompted to enter your github username and password, enter them and press enter. that's all.

Reference material

venv: Python virtual environment management https://qiita.com/fiftystorm36/items/b2fd47cf32c7694adc2e