plyer Works locally but fails when packaged

Hi I was hoping I could get some help

When testing my application it runs absolutely fine, but after packaging for windows, following the steps laid out in https://kivy.org/doc/stable/guide/packaging-windows.html to build an executable, plyer features no longer work.

The application closes with a Not Implemented error - I've included logs for opening a mail client but it happens for all plyer features I am using (email, filechooser and storagepath)

 Traceback (most recent call last):
   File "plyer\utils.py", line 93, in _ensure_obj
 ModuleNotFoundError: No module named 'plyer.platforms'
[INFO   ] [Base        ] Leaving application in progress...
 Traceback (most recent call last):
   File "main.py", line 89, in <module>
....
 File "Services\MailService.py", line 53, in open_blank_email
   File "plyer\facades\email.py", line 52, in send
   File "plyer\facades\email.py", line 58, in _send
 NotImplementedError
[24156] Failed to execute script main

I'm assuming I'm missing something in the build process but I'm not sure what it could be

Apr 05 '21 13:04 eperegrine

Hi, I was also struggling with a similar issue, using the plyer filechooser. On windows, the solution was to simply add plyer.platforms.win.filechooser in the hiddenimports in your spec file:

a = Analysis(
             ...
             datas=[],
             hiddenimports=["plyer.platforms.win.filechooser"],
             hookspath=[],
             ...
)

You can then add all the different plyer features your app is using in the hiddenimports list.

Since I had to solve this also for MacOSX, I'm going to also throw my solution here.

from kivy.tools.packaging.pyinstaller_hooks import get_deps_all, hookspath, runtime_hooks

dependencies = get_deps_all()
dependencies['hiddenimports'] += ["plyer.platforms.macosx.filechooser"]

a = Analysis(['/path/to/your/folder/containing/examples/demo/touchtracer/main.py],
             pathex=['/path/to/yout/folder/containing/testpackaging'],
             cipher=block_cipher,
             win_no_prefer_redirects=False,
             win_private_assemblies=False,
             hookspath=hookspath(),
             runtime_hooks=runtime_hooks(),
             **dependencies)

Hope it helps !

Apr 24 '21 18:04 florian-rieder

Any update on this? Having to manually add these dependencies is annoying, but also confusing for a first-time user.

Here's my solution in the .spec file, so that I can build for different OSes:

import platform

hiddenimports = []
if platform.system() == "Linux":
    hiddenimports = ["plyer.platforms.linux.notification"]
elif platform.system() == "Windows":
    hiddenimports = ["plyer.platforms.win.notification"]

And then later, in Analysis, I do hiddenimport=hiddenimports.