Import external packages or libraries : Seeing Installed Packages

The video tutorial covers methods to check installed Python packages, including using the 'pip freeze' command to list all packages. It explains how to identify package dependencies and their automatic installation when using pip. The tutorial also demonstrates using Unix commands to filter package lists and provides examples with packages like Django and requests.

What is a potential downside of trying to import a package to check if it's installed?

• It always returns false results.

• It deletes the package if not found.

• It can lead to errors if the package doesn't exist.

• It automatically installs the package.

What does the 'pip freeze' command do?

• It uninstalls unused packages.

• It lists all installed packages.

• It freezes the current state of your Python environment.

• It updates all packages to the latest version.

Which command can be used on Unix systems to filter the list of installed packages?

• pip freeze | grep

• pip show | grep

• pip install | grep

• pip list | grep

What is a dependency in the context of Python packages?

• A package that is installed but not listed.

• A package that is required by another package to function.

• A package that is outdated.

• A package that is not used by any other package.

If you install a package that requires Django, what will happen?

• Django will be updated to the latest version.

• Django will be uninstalled.

• Django will be ignored.

• Django will be automatically installed.