How do I update packages in my virtual environment?

How do I update packages in my virtual environment?

To update packages in your virtual environment, you can use the command pip install --upgrade package_name. Which package do you want to update?

I want to update Flask. What command should I use?

You can run pip install --upgrade Flask in your virtual environment to update Flask to the latest version.

Is there a way to update all packages at once?

Yes, you can use pip list --outdated to see which packages are outdated, and then run pip install --upgrade -r requirements.txt if you have a requirements file.

What if I don't have a requirements.txt file?

If you don't have a requirements.txt file, you can create one using pip freeze > requirements.txt to list all current packages, then update them as needed.