在 USB 上运行 Python

Question

I'm trying to set up a USB I have with a full Python suite. I want to be able to download modules and other useful libraries to the thumb drive, create scripts and modules of my own and even export programs, all from the USB. I want to do this so that I can work on projects from any computer without having to download any software to that particular PC.

I think I have to create a virtual environment on the USb first, but beyond that I'm not sure if its possible or feasible to accomplish this.

Any advice on how to proceed, if I can?

Answer 1

I assume you already installed python on windows and added it in your PATH . for making a python virtual environment do these steps:

Step 1: Change Directory

open cmd and write your UBS assigned letter + : to change the directory. assuming your USB is mounted as D volume.

C:\Users\Name>D:

D:\>

Step 2: Creating Virtual Environment

D:\>python -m venv otg

you can substitute otg with any name you want.

Step 3: Activating Virtual Environment

D:\>otg\Scripts\activate.bat

now you are in the created virtual environment. the CMD prompt must be sth like this

(otg) D:\>

install whatever you want. to confirm that everything is Ok, the where python command in cmd must return sth like this:

D:\otg\Scripts\python.exe

Step 4: Exiting From Environment

after you finished your work you can exit the virtual environment by issuing this command

(otg) D:\>deactivate

Now you can unplug your USB and attach it to any other system. to access the python environment you just need to repeat steps 1 , 3 and 4 . for more information about virtual environments Python Docs is a good source.