flet-dev
bug: Cannot build APK with `pyaes` dependency in Flet.
Duplicate Check
- [x] I have searched the opened issues and there are no duplicates
Describe the bug
When I try to build an APK using Flet 0.28.3 with pyaes as a dependency, the build fails:
(.venv) xin@flet-build-lab:~/flet-pyaes-issue$ flet build apk
[23:03:17] Flutter 3.29.2 installed ✅
JDK installed ✅
Android SDK installed ✅
[23:03:19] Running package command
Extra PyPi indexes:
Created temp directory: /tmp/serious_python_tempPRRUTP
Copying Python app from /home/xin/flet-pyaes-issue/src to a temp directory
Configured Android/arm64-v8a platform with sitecustomize.py
Installing with pip command to /home/xin/flet-pyaes-issue/build/site-packages/arm64-v8a
ERROR: Could not find a version that satisfies the requirement pyaes (from versions: none)
ERROR: No matching distribution found for pyaes
[23:03:21] Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.29.2, on Ubuntu 22.04.5 LTS 5.15.0-151-generic, 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
✗ pkg-config is required for Linux development.
It is likely available from your distribution (e.g.: apt install pkg-config), or can be downloaded from
https://www.freedesktop.org/wiki/Software/pkg-config/
[!] 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 can install pyaes manually with pip install pyaes, but it uses the legacy setup method:
(.venv) xin@flet-build-lab:~/flet-pyaes-issue$ pip install pyaes
Collecting pyaes
Using cached pyaes-1.6.1.tar.gz (28 kB)
Preparing metadata (setup.py) ... done
Using legacy 'setup.py install' for pyaes, since package 'wheel' is not installed.
Installing collected packages: pyaes
Running setup.py install for pyaes ... done
Successfully installed pyaes-1.6.1
It seems Flet cannot handle packages installed this way, even though pyaes is pure Python.
Code sample
# main.py
import flet as ft
import pyaes # or any package installed via setup.py install
def main(page: ft.Page):
page.add(ft.Text("Hello World"))
ft.app(target=main)
To reproduce
- Create a Flet project.
- Add
pyaestopyproject.tomldependencies:
dependencies = [
"flet==0.28.3",
"pyaes"
]
- Run
flet build apk. - See error: No matching distribution found for pyaes.
Expected behavior
Flet should detect and include packages installed via legacy setup.py install, allowing all pure Python packages to be built into APKs successfully.
Screenshots / Videos
No response
Operating System
Linux
Operating system details
Ubuntu 22.04.5 LTS
Flet version
0.28.3
Regression
I'm not sure / I don't know
Suggestions
No response
Logs
No response
Additional details
This affects all packages that don’t provide a wheel. It seems related to how Flet packages dependencies for Android. Installing wheel or building a wheel might be a temporary workaround, but the build system should ideally handle these packages automatically.
Yeah, the package is a pure python package, but because it ships source distribution (and not wheels, as common), you need to use an additional option when building: --source-packages.
I gave the latest pre-release a try and it worked. Please give it a try and let know how it works out.
src/main.py
import flet as ft
import pyaes
def main(page: ft.Page):
page.vertical_alignment = ft.MainAxisAlignment.CENTER
page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
page.add(ft.Text(f"Pyaes version: {pyaes.VERSION}", size=30))
ft.run(main)
pyproject.toml
dependencies = [
"flet >=0.70.0.dev0",
"pyaes",
]
[dependency-groups]
dev = [
"flet[all] >=0.70.0.dev0",
]
[tool.uv]
prerelease = "allow"
[tool.flet]
source_packages = ["pyaes"] # --source-packages in CLI
[tool.flet.app]
path = "src"
Screenshot
after running the app with flet debug
