[Question] uv build seems to be unable to find packages that poetry build finds

[goajos]

Question

I've been setting up a small example project for SQLAlchemy 2.0 and Android on request of Feodor:

I set everything up with poetry and a pyproject.toml initially:

[project]
name = "flet-todo-android"
version = "0.1.0"
description = "A basic Flet To-Do application for Android with SQLAlchemy2.0"
authors = [
    {name = "goajos",email = "jappecremers@gmail.com"}
]
readme = "README.md"
requires-python = ">=3.12"
dynamic = ["dependencies"]

[tool.flet]
product = "flet-todo-android"

[tool.flet.app]
path = "src"

[tool.poetry]
packages = [{include="todo_android", from="src"}]

[tool.poetry.dependencies]
flet = "0.26.0"
SQLAlchemy = "2.0.36"

This setup works with "poetry run flet build apk -v" and succesfully builds to have a simple todo app that utilizes an SQLite database on the emulator/phone for tasks.

But when switching to uv with "uv build flet build apk -v" and the following pyproject.toml:

[project]
name = "flet-todo-android"
version = "0.1.0"
description = "A basic Flet To-Do application for Android with SQLAlchemy2.0"
authors = [
    {name = "goajos",email = "jappecremers@gmail.com"}
]
readme = "README.md"
requires-python = ">=3.12"
dependencies = [
    "flet[all]==0.26.0",
    "SQLAlchemy==2.0.36"
]

[tool.flet]
product = "flet-todo-android"

[tool.flet.app]
path = "src" 

[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"

[tool.hatch.build.targets.wheel]
packages = ["src/todo_android"]

The build no longer works because of a missing dependency for flet-cli. I've tried 3 flet[all] versions as dependencies (0.25.0, 0.26.0 and 0.27.0.dev4122). Neither solve the build error. I also tried a different build system (setuptools) but that didn't solve it either.

Any idea what might be causing this issue with uv builds compared to poetry builds?

Code sample

No response

Error message

[14:26:27] Flutter 3.27.3 installed ✅
           Flutter executable:
           /home/jcremers/flutter/3.27.3/bin/flutter
           Dart executable:
           /home/jcremers/flutter/3.27.3/bin/dart
           JDK installed at /home/jcremers/java/17.0.13+11
           Configuring Flutter's path to JDK
           Run subprocess:
           ['/home/jcremers/flutter/3.27.3/bin/flutter',
           'config', '--suppress-analytics',
           '--jdk-dir=/home/jcremers/java/17.0.13+11']
[14:26:28] Setting "jdk-dir" value to
           "/home/jcremers/java/17.0.13+11".

           You may need to restart any open editors for them
           to read new settings.
           JDK installed ✅
           Android SDK installation found at
           /home/jcremers/Android/sdk
           Android SDK package "cmdline-tools;latest" is
           already installed
           Android SDK package "platform-tools" is already
           installed
           Android SDK package "platforms;android-35" is
           already installed
           Android SDK package "build-tools;34.0.0" is already
           installed
           Android SDK installed ✅
           Custom Flutter dependencies: {}
[14:26:30] Created Flutter bootstrap project from
           gh:flet-dev/flet-build-template with ref "0.26.0"
           ✅
           Run subprocess:
           ['/home/jcremers/flutter/3.27.3/bin/dart', 'run',
           '--suppress-analytics', 'serious_python:main',
           'package',
           '/home/jcremers/Repositories/flet-todo-android/src'
           , '--platform', 'Android', '--requirements',
           'SQLAlchemy==2.0.36,flet==0.26.0', '--exclude',
           'build', '--cleanup']
[14:26:31] Running package command
           Extra PyPi indexes:
           Created temp directory:
           /tmp/serious_python_tempRCPWJR
           Copying Python app from
           /home/jcremers/Repositories/flet-todo-android/src
           to a temp directory
           Cleanup app
           Configured Android/arm64-v8a platform with
           sitecustomize.py
           Installing [SQLAlchemy==2.0.36, flet==0.26.0] with
           pip command to
           /home/jcremers/Repositories/flet-todo-android/build
           /site-packages/arm64-v8a
[14:26:37] ERROR: Could not find a version that satisfies the
           requirement watchdog<5.0.0,>=4.0.0 (from flet-cli)
           (from versions: none)
           ERROR: No matching distribution found for
           watchdog<5.0.0,>=4.0.0
           <_io.TextIOWrapper name=5 encoding='utf8'>
           Run subprocess:
           ['/home/jcremers/flutter/3.27.3/bin/flutter',
           'doctor', '--no-version-check',
           '--suppress-analytics']
[14:26:42] Doctor summary (to see all details, run flutter
           doctor -v):
           [✓] Flutter (Channel stable, 3.27.3, on Debian
           GNU/Linux 12 (bookworm)
           5.15.167.4-microsoft-standard-WSL2, locale
           en_US.UTF-8)
           [✓] Android toolchain - develop for Android devices
           (Android SDK version 34.0.0)
           [✗] Chrome - develop for the web (Cannot find
           Chrome executable at google-chrome)
               ! Cannot find Chrome. Try setting
           CHROME_EXECUTABLE to a Chrome executable.
           [✗] Linux toolchain - develop for Linux desktop
               ✗ clang++ is required for Linux development.
                 It is likely available from your distribution
           (e.g.: apt install clang), or can be downloaded
           from https://releases.llvm.org/
               ✗ CMake is required for Linux development.
                 It is likely available from your distribution
           (e.g.: apt install cmake), or can be downloaded
           from https://cmake.org/download/
               ✗ ninja is required for Linux development.
                 It is likely available from your distribution
           (e.g.: apt install ninja-build), or can be
           downloaded from
           https://github.com/ninja-build/ninja/releases
               ✗ GTK 3.0 development libraries are required
           for Linux development.
                 They are likely available from your
           distribution (e.g.: apt install libgtk-3-dev)
           [!] Android Studio (not installed)
           [✓] Connected device (1 available)
           [✓] Network resources

           ! Doctor found issues in 3 categories.

╭────────────────────────────────────────────────────────────╮
│ Error building Flet app - see the log of failed command    │
│ above.                                                     │
╰────────────────────────────────────────────────────────────╯

------------------------------------------------------

• I have searched for answers to my question both in the issues and in previous discussions.

[goajos]

edit:
just to recap. this issue is not related solely on the flet[all] dependency. but how uv solves it dependencies. in a clean repo uv install + uv run flet build will still cause a ModuleNotFoundError with "flet == 0.26.0". it seems that there is something wrong with how uv solves the dependencies. switching to poetry instead of uv will solve the issue properly.

the issue is related to the dependencies = [
"flet[all]==0.26.0",
"SQLAlchemy==2.0.36"
]

flet[all], replacing this with only flet will solve the issue and enable uv build.