What is the function or meaning for -m in the command of “python -m django --versin”?

The -m flag in the command python -m django --version is used to run a module as a script. It requires the user to add a module name as an argument right after it. After reading the argument, it checks the module in the sys.path and runs its content^{1 2}.

In this case, django is the module name that is being run as a script. The --version flag is used to display the version of Django installed on your system¹.

I hope that helps! Let me know if you have any other questions.

How to install the Django version 2.1.2

To install Django version 2.1.2, you can use pip, the Python package manager. Follow these steps:

1. Open a terminal or command prompt.
2. Type the following command and press Enter to ensure that pip is up-to-date:

python -m pip install --upgrade pip

3. Type the following command and press Enter to install Django version 2.1.2:

pip install Django==2.1.2

4. Wait for the installation to complete. Once it’s done, you can verify that Django is installed by running the following command:

python -m django --version

This should output the version number of Django that you just installed.

Note: It’s recommended to use a virtual environment when working with Django to avoid conflicts with other Python packages. You can create a virtual environment using the venv module in Python or use a third-party tool like virtualenv or conda.

How install the vue.js 2.0 to my mac M1 computer?

To install Vue.js 2.0 on a Mac with an M1 chip, you can follow these steps:

1. Install Homebrew if you haven’t already. Open a terminal and run the following command:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

2. Install Node.js using Homebrew. In the same terminal, run the following command:

brew install node

3. Verify that Node.js and npm (the Node.js package manager) are installed by running the following commands:

node -v
npm -v

4. Install Vue.js globally using npm by running the following command:

npm install -g vue@2.0

5. Verify that Vue.js is installed by running the following command:

vue --version

If everything is installed correctly, you should see the version number of Vue.js that you just installed.

Note: If you encounter any permission errors during the installation process, you may need to use sudo before the commands to run them with administrative privileges.

After I run the command of “npm install -g vue@2.0”, I got the following message “+ vue@2.0.8 updated 1 package in 1.611s”

Great! That means Vue.js 2.0 has been installed on your system. You can verify that it is properly installed by running the following command:

vue --version

This command will display the version of Vue.js installed on your system.

I hope that helps! Let me know if you have any other questions.

But when I just run the command of “vue --version” I got the error message “zsh: command not found: vue”

The error message “zsh: command not found: vue” means that the vue command is not installed on your system or it is not in your system’s PATH. You can try installing it globally using the following command:

npm install -g @vue/cli

If you have already installed it globally and still getting the same error message, you can try updating your PATH variable with this command:

export PATH=$PATH:/Users/ [username]/.npm-packages/bin

replacing [username] with your username.

After running these commands, you should be able to run the vue command without any issues. Let me know if this helps.

You are using Node v10.15.3, but this version of @vue/cli requires Node ^12.0.0 || >= 14.0.0. Please upgrade your Node version. But I need to install the Vue.js：2.0

I apologize for the confusion. To install Vue.js 2.0 specifically, you can follow these steps:

1. Install Node.js version 14 or higher on your system. You can download the latest version of Node.js from the official website (https://nodejs.org/en/download/).

2. Open a terminal window and run the following command to install Vue.js globally using npm:

npm install -g vue@2.0

3. Wait for the installation to complete. Once it’s done, you can verify that Vue.js is installed by running the following command:

vue --version

This should output the version number of Vue.js 2.0 you just installed.

If you encounter any permission errors during the installation process, you may need to use sudo before the npm command to run it with administrative privileges. For example:

sudo npm install -g vue@2.0

I hope this helps!