"pip freeze" and "pip list" without dependencies of installed packages

[Mark-Joy]

What's the problem this feature will solve?

Is it possible for pip freeze and pip list to show packages that are not dependencies of other installed packages?
In other words, it is the most simplified requirements.txt

Describe the solution you'd like

pip-chill is a solution. However, it can only show package and package's version. pip freeze can show other information such as editable installed packages or locally installed packages, and supports many other options as well.

Alternative Solutions

It would be great if pip freeze supports this feature as an option, for example: --exclude-dependencies

Additional context

pip-chill can be found here

Code of Conduct

• I agree to follow the PSF Code of Conduct.

[uranusjr]

See #8981. Note also that we are currently exploring a new approach in #10636 to this problem with what's going to be called "locking". Instead of trying to figure out what packages in an existing environment are "dependencies" and what are not, we prefer pip to generate the "lock file" from user specification (i.e. the user tells pip directly what packages are expected to be included), without requiring the environment in between. The environment can also be optionally brought into play as a constraint file.