Bug: Underscores not supported

[reneleonhardt]

Description

"typing_extensions>=4.0,<5.0",

leads to

Traceback (most recent call last)
  in sync:199
  in sync_dependencies:133
KeyError: 'typing_extensions'

https://github.com/kedvall/pysync/blob/main/pysync/__main__.py#L133

What are upgrades?

The concept of "upgrades" can be confusing when it comes to uv in my point of view 😅

"structlog>=24.0,<25.0",

leads to

Bumping structlog from >=24.0 to >=24.4.0

But the latest version is 25.2.0, I think what's missing from uv is that constraints should be upgraded as well.
My expectation would be to change pyproject.toml (if 25 is still compatible with Python and other dependencies):

"structlog>=24.0,<26.0",

No output expected if constraints still match

I would expect no upgrade messages if the latest version is still included in the constraints:

"click>=8.0,<9.0",

leads to

Bumping click from >=8.0 to >=8.1.8

Latest version is 8.1.8 (no 9 available).

[Alirex]

@reneleonhardt
About underscores.
If it is still actual for you, this tool uses "normalized names":
https://github.com/Alirex/uv_upgrade

---

About upgrades.

In my tool, for case

"structlog>=24.0,<25.0",

and new compatible version 24.4.0,
constraints will be changed to

"structlog>=24.4.0,<25.0",

It is because it is relatively safe and simple to change only the ">=" constraint.
And dependencies are resolved by the uv itself.
uv makes all the heavy lifting of resolving constraints automatically.

We (my and this tool) just substitute the results of the uv work in the good enough place.

---

No output expected if constraints still match

Hmm. So what output did you really expect?

Change upper bound "<9.0"?
Or have some special mode for the tool that checks the availability of upgrade for dependencies with constraints that are different from ">="? And, if something like that exists, tell about it to user? Because, upper bound is not added by default in uv. So, maybe someone had a reason to use this bound.

Anyway, I am interested in your cases and expectations.