I'm packaging a Kivy Application using pyinstaller. The original application works fine, but when running from the dist folder, it fails due to a key error. Specifically, it starts the Kivy application, but then immediately closes due to the key error.
Error Message:
Traceback (most recent call last):
File "kivy\properties.pyx", line 861, in kivy.properties.ObservableDict.__getattr__
KeyError: 'screen_login'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "cli.py", line 5, in <module>
File "kivy\app.py", line 949, in run
File "kivy\app.py", line 919, in _run_prepare
File "src\__main__.py", line 26, in build
File "src\__main__.py", line 20, in __init__
File "kivy\properties.pyx", line 864, in kivy.properties.ObservableDict.__getattr__
AttributeError: 'super' object has no attribute '__getattr__'
The main.py with the resource_path function added.
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
import os
import sys
from kivy.resources import resource_add_path, resource_find
# Import files like
from CheckIn_Application.src.screens.login.login import LoginScreen
from CheckIn_Application.src.screens.checkin.checkin import CheckInScreen
def resource_path(relative_path):
""" Get absolute path to resource, works for dev and for PyInstaller """
try:
# PyInstaller creates a temp folder and stores path in _MEIPASS
base_path = sys._MEIPASS
except Exception:
base_path = os.path.abspath(".")
return os.path.join(base_path, relative_path)
# Make all stuff modular
class WindowManager(BoxLayout):
# Class Widgets
login_widget = LoginScreen()
check_in_widget = CheckInScreen()
print(resource_path('maincheckin.kv'))
def __init__(self, **kwargs):
super().__init__(**kwargs)
# super(WindowManager, self).__init__(**kwargs)
# Add Widget
self.ids.screen_login.add_widget(self.login_widget)
self.ids.screen_checkin.add_widget(self.check_in_widget)
class MainCheckin(App):
def build(self):
return WindowManager()
if __name__ == "__main__":
# Main().run()
if hasattr(sys, '_MEIPASS'):
resource_add_path(os.path.join(sys._MEIPASS))
MainCheckin().run()
And the associated.kv file
<WindowManager>:
id: main_window
ScreenManager:
id: scrn_mngr_main
Screen:
id: screen_login
name:'screen_login'
Screen:
id: screen_checkin
name:'screen_checkin'
I think it has something to do with how pyinstaller interacts with the.kv file. I can replicate this error when I change the Screen's id to a string (ie. id: "screen_login versus id: screen_login) in the original code. I think Kivy makes it a point to not have their element id's identified as strings.
EDIT: Spec File:
# -*- mode: python ; coding: utf-8 -*-
import os
import sys
from pathlib import Path
from pylibdmtx import pylibdmtx
from pyzbar import pyzbar
from kivy_deps import sdl2, glew
block_cipher = None
a = Analysis(
['cli.py'],
pathex=['C:/Users/username/PycharmProjects/DBlytics/CheckIn_Application'],
binaries=[],
datas=[('C:/Users/username/PycharmProjects/DBlytics/CheckIn_Application/src/maincheckin.kv','.')],
hiddenimports=[],
hookspath=[],
runtime_hooks=[],
excludes=[],
win_no_prefer_redirects=False,
win_private_assemblies=False,
cipher=block_cipher,
noarchive=False)
# dylibs are not detected because loaded by ctypes.
# binaries accept the TOC format. Use list comprehension.
a.binaries += TOC([
(Path(dep._name).name, dep._name, 'BINARY')
for dep in pylibdmtx.EXTERNAL_DEPENDENCIES + pyzbar.EXTERNAL_DEPENDENCIES
])
# A dependency of libzbar.dylib that PyInstaller does not detect
MISSING_DYLIBS = (
Path('/usr/local/lib/libjpeg.8.dylib'),
)
a.binaries += TOC([
(lib.name, str(lib.resolve()), 'BINARY') for lib in MISSING_DYLIBS
])
pyz = PYZ(a.pure, a.zipped_data,
cipher=block_cipher)
a.datas += [('maincheckin.kv', 'C:/Users/username/PycharmProjects/DBlytics/CheckIn_Application/src/maincheckin.kv', 'DATA')]
exe = EXE(
pyz,
a.scripts,
# *[Tree(p) for p in (sdl2.dep_bins + glew.dep_bins)],
[],
exclude_binaries=True,
name='cli',
debug=False,
bootloader_ignore_signals=False,
strip=False,
upx=True,
console=True )
coll = COLLECT(exe,
a.binaries,
a.zipfiles,
a.datas,
*[Tree(p) for p in (sdl2.dep_bins + glew.dep_bins)],
strip=False,
upx=True,
upx_exclude=[],
name='cli')
When adding the.kv file to the spec in this method, I notice that pyinstaller adds the.kv file to dist\cli\ folder and not to to the _MEIPASS temp folder.
The issue is that I have the code correct in the original, but somehow after I package it, this error gets thrown.
Can u share your.spec file with me? I had the same problem a couple of weeks ago. I think that you didn't specify your data source.
My.spec file is located in: ../denul2/ My code files (.py/.kv) are located in: ../denul2/project/
Look at this: https://imgur.com/a/pWCKPQ1
edit: Try to also add this: https://imgur.com/a/rGFOMw5
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