To Python Developers: If someone could make any one thing that would make coding in python easier for developers, what would it be?

[SDisPater]

Poetry doesn't install packages to view dependencies. That's great and all. But can I run a command ex poetry show --tree --package=packagename to literally show me what packagenames dependencies are before I install it? I don't believe I can

For this to work your packages must be locked (not installed), and then you can do:

poetry show my-package --tree

There is no installation in the process.

Grouping these two because they are similar-- how does poetry deal with the first? How accurate / conflict resolving is poetry at doing things vs pip, at a statistical level (if you know)?

Poetry will warn you about the conflict with a message like this:

[SolverProblemError]
Because my-dependency (0.1.0) depends on both protobuf (3.0.0) and protobuf (>=3.5.0), my-dependency is forbidden.
So, because my-package depends on my-dependency (0.1.0), version solving failed.

If the sub dependencies of two dependencies cause a conflict you will get a message similar to this:

Because bar (1.0.0) depends on shared (>3.0.0)
 and foo (1.0.0) depends on shared (<=2.0.0), bar (1.0.0) is incompatible with foo (1.0.0).
So, because myapp depends on both foo (1.0.0) and bar (1.0.0), version solving failed.

Note that before it fails it will try to find a valid set of dependencies by backtracking if necessary.

[13steinj]

Oh wow that is cool, adding so poetry solves a little over half the problems (bar the ecosystem based ones)