How do I create a requirements.txt file for my Python virtual environment?

How do I create a requirements.txt file for my Python virtual environment?

To create a requirements.txt file, first activate your virtual environment. Then, run the command pip freeze > requirements.txt.

What if I want to include only specific packages?

You can manually create the requirements.txt file and list the packages you want, like this:

package1==version
package2==version

Can I install packages from the requirements.txt file later?

Yes, you can install all the packages listed in requirements.txt by running pip install -r requirements.txt.

Is there a way to update the requirements.txt file automatically?

Yes, you can use pip freeze > requirements.txt again after installing new packages to update the file.