feat/promote uv (#296)

* Promote uv above poetry

* Address comment

* Updating README

README.md

@@ -42,6 +42,7 @@ machine-parseable specfile and lockfile listing.
 
 |                       | core | index | guess |
 |-----------------------|------|-------|-------|
+| python-python3-uv     | yes  | yes   | yes   |
 | python-python3-pip    | yes  | yes   | yes   |
 | python-python3-poetry | yes  | yes   | yes   |
 | nodejs-yarn           | yes  | yes   | yes   |
@@ -350,8 +351,8 @@ Here are useful things to know that aren't obvious:
   the files in the current directory. This can be overridden either
   partially or completely by specifying a value for the `-l` option.
   You can see the available languages by running `upm list-languages`.
-  In addition to a full language (e.g. `python-python3-poetry`), you
-  can specify something simpler (e.g. `python`, `python3`, `python2`,
+  In addition to a full language (e.g. `python3-poetry`), you
+  can specify something simpler (e.g. `python`, `python3`,
   `poetry`, `python-poetry`). In that case, UPM will examine all of
   the matching languages and pick whichever one it thinks is best. You
   can experiment with this logic by providing the `-l` option to `upm

internal/backends/backends.go

@@ -27,9 +27,9 @@ import (
 // If more than one backend might match the same project, then one
 // that comes first in this list will be used.
 var languageBackends = []api.LanguageBackend{
+	python.PythonUvBackend,
 	python.PythonPoetryBackend,
 	python.PythonPipBackend,
-	python.PythonUvBackend,
 	nodejs.BunBackend,
 	nodejs.NodejsNPMBackend,
 	nodejs.NodejsPNPMBackend,

internal/backends/python/python.go

@@ -860,7 +860,7 @@ func makePythonUvBackend() api.LanguageBackend {
 	return b
 }
 
-// PythonPoetryBackend is a UPM backend for Python 3 that uses Poetry.
+// A collection of backends exported for consumption
 var PythonPoetryBackend = makePythonPoetryBackend()
 var PythonPipBackend = makePythonPipBackend()
 var PythonUvBackend = makePythonUvBackend()