[FEATURE] Support for package manager pipx

[jayvdb]

What is the name of the package manager you would like to see support for?
pipx. If not as a manager, it should be an alias for the pip3 manager

What operating systems or derivative does this package manager support?

• Windows
• Mac
• Linux
• BSD
• Redox
• iOS
• Android
• Other, namely:

If Linux, is it only for a specific distro?

• Yes, namely:
• No

What type of package manager is this?

• Programming language specific: Python
• General purpose (e.g. APT on Debian)
• Other, namely:

Are administrator priviliges required? (sudo, etc.)

• Yes
• No