Buildozer Python 3 Compatability Issues

[FeralBytes]

I will be posting any bugs I come across and their associated patches. Once I have buildozer working all of the way I will make a pull request.

Here is the first traceback I recieved using Buildozer with Python3.

buildozer android debug
# Check configuration tokens
# Ensure build layout
# Check configuration tokens
# Preparing build
# Check requirements for android
# Install platform
# Apache ANT found at /home/wolfrage/.buildozer/android/platform/apache-ant-1.9.4
# Android SDK found at /home/wolfrage/.buildozer/android/platform/android-sdk-21
# Android NDK found at /home/wolfrage/.buildozer/android/platform/android-ndk-r9c
# Check application requirements
# Check garden requirements
# Compile platform
# Distribution already compiled, pass.
# Build the application #1
# Package the application
Traceback (most recent call last):
  File "/usr/local/bin/buildozer", line 9, in <module>
    load_entry_point('buildozer==0.26', 'console_scripts', 'buildozer')()
  File "/usr/local/lib/python3.4/dist-packages/buildozer/scripts/client.py", line 13, in main
    Buildozer().run_command(sys.argv[1:])
  File "/usr/local/lib/python3.4/dist-packages/buildozer/__init__.py", line 967, in run_command
    self.target.run_commands(args)
  File "/usr/local/lib/python3.4/dist-packages/buildozer/target.py", line 85, in run_commands
    func(args)
  File "/usr/local/lib/python3.4/dist-packages/buildozer/target.py", line 97, in cmd_debug
    self.buildozer.build()
  File "/usr/local/lib/python3.4/dist-packages/buildozer/__init__.py", line 194, in build
    self.target.build_package()
  File "/usr/local/lib/python3.4/dist-packages/buildozer/targets/android.py", line 529, in build_package
    self._update_libraries_references(dist_dir)
  File "/usr/local/lib/python3.4/dist-packages/buildozer/targets/android.py", line 690, in _update_libraries_references
    fd.write(line.decode('utf-8'))
AttributeError: 'str' object has no attribute 'decode'

[FeralBytes]

Kivy developers, please tell me if you want this patch implemented in a different way before I make a pull request.
Patch:
Line 690 of android.py is

                fd.write(line.decode('utf-8'))

Becomes:

                if sys.hexversion < 0x03000000:
                    fd.write(line)

Or:

                if 'python3' not in sys.executable:
                    fd.write(line)

[FeralBytes]

New Traceback, this one was caused by adding a service to my kivy app.

Traceback (most recent call last):
  File "/usr/local/bin/buildozer", line 9, in <module>
    load_entry_point('buildozer==0.26', 'console_scripts', 'buildozer')()
  File "/usr/local/lib/python3.4/dist-packages/buildozer/scripts/client.py", line 13, in main
    Buildozer().run_command(sys.argv[1:])
  File "/usr/local/lib/python3.4/dist-packages/buildozer/__init__.py", line 967, in run_command
    self.target.run_commands(args)
  File "/usr/local/lib/python3.4/dist-packages/buildozer/target.py", line 85, in run_commands
    func(args)
  File "/usr/local/lib/python3.4/dist-packages/buildozer/target.py", line 97, in cmd_debug
    self.buildozer.build()
  File "/usr/local/lib/python3.4/dist-packages/buildozer/__init__.py", line 191, in build
    self.build_application()
  File "/usr/local/lib/python3.4/dist-packages/buildozer/__init__.py", line 672, in build_application
    self._add_sitecustomize()
  File "/usr/local/lib/python3.4/dist-packages/buildozer/__init__.py", line 778, in _add_sitecustomize
    data = header + data
TypeError: Can't convert 'bytes' object to str implicitly

[FeralBytes]

One way to patch this is that
Line 778-780

        data = header + data
        with open(main_py, 'wb') as fd:
            fd.write(data)

Becomes:

        data = header + str(data, 'utf8')
        with open(main_py, 'wb') as fd:
            fd.write(bytes(data, 'utf8'))

But I am not sure if that will be Python 2 compatable. Probably not given the use of bytes().

[tito]

In the buildozer.init, you have IS_PY3 available that you can use for having a different behavior :)

[FeralBytes]

OK I will adjust the code to use IS_PY3.

[FeralBytes]

@tito I applied the patches as requested but Buildozer still fails full log attached. Same patches worked on 0.26, so must be something relatively recent.

[dvenkatsagar]

There is also another bug where it fails the application build step with python3, but python-for-android doesnt support python3 yet.

Error given:
build.py: error: unrecognized arguments: debug

/usr/bin/python3.4 build.py --name 'My Application' --version 0.0.1 --package org.test.myapp --private /home/sagar/Repositories/Scripts/Projects/contributions/Test App/.buildozer/android/app --sdk 24 --minsdk 14 --orientation landscape debug

[wannaphong]

Now , Buildozer Python 3 Compatability 100% ?

[kived]

WIth #321 merged, I can successfully build an APK with Python 3.4.3 on OS X. With my unmerged PRs #323 and kivy/python-for-android#720, I can also build an APK with the android_new (p4a revamp) target.

This issue references multiple different problems, and it looks like they have either been fixed or I cannot duplicate them with the current code. I'm going to close this issue; if any of these problems persist please open a separate issue for each problem.