How can you view the modules that have already been installed in Spyder?

In Spyder, you can use the pip command in Python to view installed modules.

1. Open Spyder and create a new Python script.
2. Type the following code into the script:

import pip

def get_installed_packages():
    installed_packages = pip.get_installed_distributions()
    installed_packages_list = sorted(["%s==%s" % (i.key, i.version)
                                      for i in installed_packages])
    for package in installed_packages_list:
        print(package)

get_installed_packages()

1. When you run the script, you will see a list of installed modules printed in the terminal.

Please note that this requires pip to be already installed on your system. If you have not installed pip yet, you can follow these steps to do so:

1. Open the terminal (command prompt or PowerShell on Windows).
2. piping

python -m ensurepip --upgrade

1. install Python packages

pip install --upgrade pip

This way, you can use the code above in Spyder to view the installed modules.