Reorder pip install to better prioritize

[mdellweg]

pipdeptree as a debugging tool should really go last.

[mdellweg]

pipdeptree as a debugging tool should really go last.

Does not seem to work.

[mdellweg]

Pip’s current implementation of the provider implements get_preference as follows:

Prefer if any of the known requirements is “direct”, e.g. points to an explicit URL.

If equal, prefer if any requirement is “pinned”, i.e. contains operator === or ==.

If equal, calculate an approximate “depth” and resolve requirements closer to the user-specified requirements first.

Order user-specified requirements by the order they are specified.

If equal, prefers “non-free” requirements, i.e. contains at least one operator, such as >= or <.

If equal, order alphabetically for consistency (helps debuggability).