p4a Doesn't Pick Up Latest Installed Java Command Line Tools, Resulting in avdmanager exception

[cedarbob]

Versions

• Python: 3.9.7
• OS: Ubuntu 20.04
• Kivy: 2.0
• Cython: 0.29.25
• OpenJDK: 11.0.13

Description

I'm trying to build an apk with p4a for the first time. Using IntellijIdea, I installed the latest sdk command line tools. But p4a used the avdmanager in ../Sdk/tools/bin, instead of the new one which was installed in the default location .../Sdk/cmdline-tools/latest/bin. The avdmanager then threw a ClassNotFoundException for javax.xml.bind.annotation.XmlSchema.

Logs

$ p4a apk --private $HOME/Test/Python/kivydemo-for-android/showcase --package=com.rhrapps.showcase --name "Kivy Showcase" --version 0.1 --bootstrap=sdl2 --requirements=Python,kivy
[WARNING]: $ANDROIDNDKVER is deprecated and no longer necessary, the value you set is ignored
[INFO]:    Will compile for the following archs: armeabi-v7a
[INFO]:    Found Android API target in $ANDROIDAPI: 32
Traceback (most recent call last):
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/bin/p4a", line 8, in <module>
    sys.exit(main())
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/pythonforandroid/entrypoints.py", line 18, in main
    ToolchainCL()
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/pythonforandroid/toolchain.py", line 725, in __init__
    getattr(self, command)(args)
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/pythonforandroid/toolchain.py", line 143, in wrapper_func
    ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/pythonforandroid/build.py", line 300, in prepare_build_environment
    apis = get_available_apis(self.sdk_dir)
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/pythonforandroid/build.py", line 74, in get_available_apis
    targets = get_targets(sdk_dir)
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/pythonforandroid/build.py", line 62, in get_targets
    targets = avdmanager('list', 'target').stdout.decode('utf-8').split('\n')
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/sh.py", line 1566, in __call__
    return RunningCommand(cmd, call_args, stdin, stdout, stderr)
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/sh.py", line 822, in __init__
    self.wait()
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/sh.py", line 879, in wait
    self.handle_command_exit_code(exit_code)
  File "/home/rhr/Tools/miniconda3/envs/kivy_env/lib/python3.9/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /home/rhr/Android/Sdk/tools/bin/avdmanager list target

  STDOUT:


  STDERR:
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
	at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
	at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
	at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
	at com.android.sdklib.tool.AvdManagerCli.run(AvdManagerCli.java:213)
	at com.android.sdklib.tool.AvdManagerCli.main(AvdManagerCli.java:200)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
	... 5 more

[misl6]

Yeah, recently tools became cmdline-tools.

In buildozer we're still relying on an old version of the cmdline tools, which are located at tools, but I agree that should be updated to support the newest ones (or at least we should support both locations)

[mavavilj]

I have this same problem, I've followed instructions at:

https://stackoverflow.com/a/67413427
and
https://python-for-android.readthedocs.io/en/latest/quickstart/#installing-android-sdk

Then when building I get:

~/Documents/codings/kivy> p4a apk --private $HOME/Documents/codings/kivy/ --package=org.example.myapp --name "My application" --version 0.1 --requirements=python3,kivy --arch=armeabi-v7a
[WARNING]: $ANDROIDNDKVER is deprecated and no longer necessary, the value you set is ignored
[INFO]:    Will compile for the following archs: armeabi-v7a
[INFO]:    Found Android API target in $ANDROIDAPI: 27
Traceback (most recent call last):
  File "/usr/bin/p4a", line 8, in <module>
    sys.exit(main())
  File "/usr/lib/python3.10/site-packages/pythonforandroid/entrypoints.py", line 18, in main
    ToolchainCL()
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 728, in __init__
    getattr(self, command)(args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 141, in wrapper_func
    ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 358, in prepare_build_environment
    apis = get_available_apis(self.sdk_dir)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 130, in get_available_apis
    targets = get_targets(sdk_dir)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 118, in get_targets
    targets = avdmanager('list', 'target').stdout.decode('utf-8').split('\n')
  File "/usr/lib/python3.10/site-packages/sh.py", line 1566, in __call__
    return RunningCommand(cmd, call_args, stdin, stdout, stderr)
  File "/usr/lib/python3.10/site-packages/sh.py", line 822, in __init__
    self.wait()
  File "/usr/lib/python3.10/site-packages/sh.py", line 879, in wait
    self.handle_command_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /opt/android-sdk/tools/bin/avdmanager list target

  STDOUT:


  STDERR:
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
	at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
	at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
	at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
	at com.android.sdklib.tool.AvdManagerCli.run(AvdManagerCli.java:213)
	at com.android.sdklib.tool.AvdManagerCli.main(AvdManagerCli.java:200)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
	... 5 more

I don't know about you, but to me this sounds very acute, because I don't understand any way around.

[mavavilj]

I can proceed by editing /usr/lib/python3.10/site-packages/pythonforandroid/build.py lines 116 and 117 to:

    if exists(join(sdk_dir, 'cmdline-tools', 'bin', 'avdmanager')):
        avdmanager = sh.Command(join(sdk_dir, 'cmdline-tools', 'bin', 'avdmanager'))

But now the error becomes:

p4a apk --private $HOME/Documents/codings/kivy/ --package=org.example.myapp --name "My application" --version 0.1 --requirements=python3,kivy --arch=armeabi-v7a
[WARNING]: $ANDROIDNDKVER is deprecated and no longer necessary, the value you set is ignored
[INFO]:    Will compile for the following archs: armeabi-v7a
[INFO]:    Found Android API target in $ANDROIDAPI: 27
Traceback (most recent call last):
  File "/usr/bin/p4a", line 8, in <module>
    sys.exit(main())
  File "/usr/lib/python3.10/site-packages/pythonforandroid/entrypoints.py", line 18, in main
    ToolchainCL()
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 728, in __init__
    getattr(self, command)(args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 141, in wrapper_func
    ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 358, in prepare_build_environment
    apis = get_available_apis(self.sdk_dir)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 130, in get_available_apis
    targets = get_targets(sdk_dir)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 121, in get_targets
    targets = android('list').stdout.decode('utf-8').split('\n')
  File "/usr/lib/python3.10/site-packages/sh.py", line 1566, in __call__
    return RunningCommand(cmd, call_args, stdin, stdout, stderr)
  File "/usr/lib/python3.10/site-packages/sh.py", line 822, in __init__
    self.wait()
  File "/usr/lib/python3.10/site-packages/sh.py", line 879, in wait
    self.handle_command_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_2: 

  RAN: /opt/android-sdk/tools/android list

  STDOUT:
*************************************************************************
The "android" command is deprecated.
For manual SDK, AVD, and project management, please use Android Studio.
For command-line tools, use tools/bin/sdkmanager and tools/bin/avdmanager
*************************************************************************
Invalid or unsupported command "list"

Supported commands are:
android list target
android list avd
android list device
android create avd
android move avd
android delete avd
android list sdk
android update sdk


  STDERR:

[misl6]

As a workaround, until we update python-for-android to support the latest Android command-line-tools version, please rely on the following links:

macOS: https://dl.google.com/android/repository/commandlinetools-mac-6514223_latest.zip
Linux: https://dl.google.com/android/repository/commandlinetools-linux-6514223_latest.zip

[mavavilj]

I can also proceed from the previous edit of /usr/lib/python3.10/site-packages/pythonforandroid/build.py lines 116 and 117 to:

    if exists(join(sdk_dir, 'cmdline-tools', 'bin', 'avdmanager')):
        avdmanager = sh.Command(join(sdk_dir, 'cmdline-tools', 'bin', 'avdmanager'))
        targets = avdmanager('list', 'target').stdout.decode('utf-8').split('\n')
    elif exists(join(sdk_dir, 'cmdline-tools/latest/bin', 'sdkmanager')):
        android = sh.Command(join(sdk_dir, 'cmdline-tools/latest/bin', 'sdkmanager'))
        targets = android('--list').stdout.decode('utf-8').split('\n')

Then the error becomes:

p4a apk --private $HOME/Documents/codings/kivy/ --package=org.example.myapp --name "My application" --version 0.1 --requirements=python3,kivy --arch=arm64-v8a
[WARNING]: $ANDROIDNDKVER is deprecated and no longer necessary, the value you set is ignored
[INFO]:    Will compile for the following archs: arm64-v8a
[INFO]:    Found Android API target in $ANDROIDAPI: 27
[INFO]:    Available Android APIs are ()
[ERROR]:   Build failed: Requested API target 27 is not available, install it with the SDK android tool.

[misl6]

Did you installed the requested API?
See: https://python-for-android.readthedocs.io/en/latest/quickstart/#platform-and-build-tools

[mavavilj]

Yes, but by using /opt/android-sdk/cmdline-tools/latest/bin/sdkmanager as given in:

https://stackoverflow.com/questions/65262340/cmdline-tools-could-not-determine-sdk-root/67413427#67413427

my ~/.bashrc:

# Adjust the paths!
export ANDROIDSDK="/opt/android-sdk"
export ANDROIDNDK="$HOME/Developer/android-ndk-r23b"
export ANDROIDAPI="27"  # Target API version of your application
export NDKAPI="21"  # Minimum supported API version of your application
export ANDROIDNDKVER="r23b"  # Version of the NDK you installed

The installation created a new /tools/ for example, but:

/opt/android-sdk/tools/bin/sdkmanager
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
	at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
	at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
	at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
	at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
	at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
	... 5 more

At line 358 of /usr/lib/python3.10/site-packages/pythonforandroid/build.py we find:

apis = get_available_apis(self.sdk_dir)

The self.sdk_dir prints to /opt/android-sdk, which indeed should be the sdk_root.

[mavavilj]

The reason it doesn't return any available APIs is caused by:

apis = [s for s in targets if re.match(r'^ *API level: ', s)]

at line 131

resulting to apis = [].

Even when the line before it

targets = get_targets(sdk_dir)

has the full output of /opt/android-sdk/cmdline-tools/latest/bin/sdkmanager --list. This list actually does contain:

system-images;android-27;default;arm64-v8a | 1 | ARM 64 v8a System Image

[mavavilj]

I can proceed by commenting out the lines that check for the API (358-367):

        """
        apis = get_available_apis(self.sdk_dir)
        info('Available Android APIs are ({})'.format(
            ', '.join(map(str, apis))))
        if android_api in apis:
            info(('Requested API target {} is available, '
                  'continuing.').format(android_api))
        else:
            raise BuildInterruptingException(
                ('Requested API target {} is not available, install '
                 'it with the SDK android tool.').format(android_api))
        """

Now the error becomes:

p4a apk --private $HOME/Documents/codings/kivy/ --package=org.example.myapp --name "My application" --version 0.1 --requirements=python3,kivy --arch=arm64-v8a
[INFO]:    Will compile for the following archs: arm64-v8a
[INFO]:    Found Android API target in $ANDROIDAPI: 27
[INFO]:    Found NDK dir in $ANDROIDNDK: /home/myuser/Developer/android-ndk-r23b
[INFO]:    Found NDK version 23b
[WARNING]: Maximum recommended NDK version is 19c, but newer versions may work.
[WARNING]: Newer NDKs may not be fully supported by p4a.
[INFO]:    Found Android API target in $NDKAPI
[INFO]:    ccache is missing, the build will not be optimized in the future.
/usr/bin/python3: No module named cython
[WARNING]: Cython for python3 missing. If you are building for  a python 3 target (which is the default) then THINGS WILL BREAK.
[WARNING]: Could not find any toolchain for aarch64-linux-android!
Traceback (most recent call last):
  File "/usr/bin/p4a", line 8, in <module>
    sys.exit(main())
  File "/usr/lib/python3.10/site-packages/pythonforandroid/entrypoints.py", line 18, in main
    ToolchainCL()
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 728, in __init__
    getattr(self, command)(args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 141, in wrapper_func
    ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 447, in prepare_build_environment
    self.toolchain_version = select_and_check_toolchain_version(
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 90, in select_and_check_toolchain_version
    toolchain_version=toolchain_version,
UnboundLocalError: local variable 'toolchain_version' referenced before assignment

[mavavilj]

I can proceed by modifying line 430 to use the python3 that I really use:

"python3.10", "-m", "cython", "--help",

Now error becomes:

p4a apk --private $HOME/Documents/codings/kivy/ --package=org.example.myapp --name "My application" --version 0.1 --requirements=python3,kivy --arch=arm64-v8a
[INFO]:    Will compile for the following archs: arm64-v8a
[INFO]:    Found Android API target in $ANDROIDAPI: 27
[INFO]:    Found NDK dir in $ANDROIDNDK: /home/myuser/Developer/android-ndk-r23b
[INFO]:    Found NDK version 23b
[WARNING]: Maximum recommended NDK version is 19c, but newer versions may work.
[WARNING]: Newer NDKs may not be fully supported by p4a.
[INFO]:    Found Android API target in $NDKAPI
[INFO]:    ccache is missing, the build will not be optimized in the future.
[WARNING]: Could not find any toolchain for aarch64-linux-android!
Traceback (most recent call last):
  File "/usr/bin/p4a", line 8, in <module>
    sys.exit(main())
  File "/usr/lib/python3.10/site-packages/pythonforandroid/entrypoints.py", line 18, in main
    ToolchainCL()
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 728, in __init__
    getattr(self, command)(args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 141, in wrapper_func
    ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 447, in prepare_build_environment
    self.toolchain_version = select_and_check_toolchain_version(
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 90, in select_and_check_toolchain_version
    toolchain_version=toolchain_version,
UnboundLocalError: local variable 'toolchain_version' referenced before assignment

[mavavilj]

Finally,

changing to android-ndk-r19c, rather than android-ndk-r23b, the build starts and goes on for quite a long time until I hit something which looks like a python3 name mismatch again:

[INFO]:    Building pyjnius for arm64-v8a
[INFO]:    jnius apparently isn't already in site-packages
[INFO]:    Cythonizing anything necessary in pyjnius
[INFO]:    -> directory context /home/myuser/.local/share/python-for-android/build/other_builds/pyjnius-sdl2/arm64-v8a__ndk_target_21/pyjnius
[INFO]:    -> running python3 -c import sys; print(sys.path)
[INFO]:    Trying first build of pyjnius to get cython files: this is expected to fail                                       
[INFO]:    -> running python3 setup.py build_ext -v
           working: subprocess.CalledProcessError: Command '['which', 'javac']' returned non-zero exit status 1.             Exception in thread background thread for pid 10702:
Traceback (most recent call last):
  File "/usr/lib64/python3.10/threading.py", line 1009, in _bootstrap_inner
    self.run()
  File "/usr/lib64/python3.10/threading.py", line 946, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3.10/site-packages/sh.py", line 1683, in wrap
    fn(*rgs, **kwargs)
  File "/usr/lib/python3.10/site-packages/sh.py", line 2662, in background_thread
    handle_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 2349, in fn
    return self.command.handle_command_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /home/myuser/.local/share/python-for-android/build/other_builds/hostpython3/desktop/hostpython3/native-build/python3 setup.py build_ext -v

  STDOUT:
which: no javac in (/home/myuser/Developer/android-ndk-r19c/toolchains/llvm/prebuilt/linux-x86_64/bin:/home/myuser/Developer/android-ndk-r19c/toolchains/llvm/prebuilt/linux-x86_64/bin:/home/myuser/Developer/android-ndk-r19c/toolchains/llvm/prebuilt/linux-x86_64/bin:/home/myuser/Developer/android-ndk-r19c/toolchains/llvm/prebuilt/linux-x86_64/bin:/home/myuser/Developer/android-ndk-r19c/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86/bin/:/home/myuser/Developer/android-ndk-r19c/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/:/home/myuser/Developer/android-ndk-r19c:/opt/android-sdk/tools:/home/myuser/.local/bin:/home/myuser/bin:/usr/local/bin:/usr/bin:/bin:/snap/bin)
Traceback (most recent call last):
  File "setup.py", line 95, in <module>
    compile_native_invocation_handler(*get_possible_homes(PLATFORM))
  File "jnius/env.py", line 172, in get_possible_homes
    get_jdk_home(platform),
  File "jnius/env.py", line 136, in get_jdk_home
    check_output(
  File "/home/myuser/.local/share/python-for-android/build/other_builds/hostpython3/desktop/hostpython3/Lib/subprocess.py", line 415, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/home/myuser/.local/share/python-for-android/build/other_builds/hostpython3/desktop/hostpython3/Lib/subprocess.py", line 516, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['which', 'javac']' returned non-zero exit status 1.


  STDERR:

                                                                                                                             
[INFO]:    pyjnius first build failed (as expected)
[INFO]:    Running cython where appropriate
[INFO]:    Cythonize jnius/jnius.pyx
[INFO]:    -> running python3 -cimport sys; from Cython.Compiler.Main import setuptools_main; sys....(and 42 more)
           working: ModuleNotFoundError: No module named 'Cython'                                                            Exception in thread background thread for pid 10710:
Traceback (most recent call last):
  File "/usr/lib64/python3.10/threading.py", line 1009, in _bootstrap_inner
    self.run()
  File "/usr/lib64/python3.10/threading.py", line 946, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3.10/site-packages/sh.py", line 1683, in wrap
    fn(*rgs, **kwargs)
  File "/usr/lib/python3.10/site-packages/sh.py", line 2662, in background_thread
    handle_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 2349, in fn
    return self.command.handle_command_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /usr/bin/python3 '-cimport sys; from Cython.Compiler.Main import setuptools_main; sys.exit(setuptools_main());' ./jnius/jnius.pyx

  STDOUT:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'Cython'


  STDERR:

Traceback (most recent call last):                                                                                           
  File "/usr/bin/p4a", line 8, in <module>
    sys.exit(main())
  File "/usr/lib/python3.10/site-packages/pythonforandroid/entrypoints.py", line 18, in main
    ToolchainCL()
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 728, in __init__
    getattr(self, command)(args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 151, in wrapper_func
    build_dist_from_args(ctx, dist, args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 210, in build_dist_from_args
    build_recipes(build_order, python_modules, ctx,
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 597, in build_recipes
    recipe.build_arch(arch)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1059, in build_arch
    self.build_cython_components(arch)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1084, in build_cython_components
    self.cythonize_build(env=env)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1132, in cythonize_build
    self.cythonize_file(env, build_dir, join(root, filename))
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1121, in cythonize_file
    shprint(python_command, "-c"
  File "/usr/lib/python3.10/site-packages/pythonforandroid/logger.py", line 167, in shprint
    for line in output:
  File "/usr/lib/python3.10/site-packages/sh.py", line 953, in next
    self.wait()
  File "/usr/lib/python3.10/site-packages/sh.py", line 879, in wait
    self.handle_command_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /usr/bin/python3 '-cimport sys; from Cython.Compiler.Main import setuptools_main; sys.exit(setuptools_main());' ./jnius/jnius.pyx

  STDOUT:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'Cython'


  STDERR:

[mavavilj]

Modifying line 1118 of recipe.py to:

python_command = sh.Command("python3.10")

ends up to:

[INFO]:    pyjnius first build failed (as expected)
[INFO]:    Running cython where appropriate
[INFO]:    Cythonize jnius/jnius.pyx
[INFO]:    -> running python3.10 -cimport sys; from ...(and 91 more)
           working: jnius/jnius.pyx:113:3: Compile-time name '...(and 26 more) Exception in thread background thread for pid 15352:
Traceback (most recent call last):
  File "/usr/lib64/python3.10/threading.py", line 1009, in _bootstrap_inner
    self.run()
  File "/usr/lib64/python3.10/threading.py", line 946, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3.10/site-packages/sh.py", line 1683, in wrap
    fn(*rgs, **kwargs)
  File "/usr/lib/python3.10/site-packages/sh.py", line 2662, in background_thread
    handle_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 2349, in fn
    return self.command.handle_command_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /usr/bin/python3.10 '-cimport sys; from Cython.Compiler.Main import setuptools_main; sys.exit(setuptools_main());' ./jnius/jnius.pyx

  STDOUT:
/home/myuser/.local/lib/python3.10/site-packages/Cython/Compiler/Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: /home/myuser/.local/share/python-for-android/build/other_builds/pyjnius-sdl2/arm64-v8a__ndk_target_21/pyjnius/jnius/jnius.pyx
  tree = Parsing.p_module(s, pxd, full_module_name)

Error compiling Cython file:
------------------------------------------------------------
...
import sys
import traceback

include "jnius_compat.pxi"
include "jni.pxi"
include "config.pxi"
^
------------------------------------------------------------

jnius/jnius.pyx:100:0: 'config.pxi' not found

Error compiling Cython file:
------------------------------------------------------------
...

include "jnius_compat.pxi"
include "jni.pxi"
include "config.pxi"

IF JNIUS_PLATFORM == "android":
  ^
------------------------------------------------------------

jnius/jnius.pyx:102:3: Compile-time name 'JNIUS_PLATFORM' not defined

Error compiling Cython file:
------------------------------------------------------------
...
include "jni.pxi"
include "config.pxi"

IF JNIUS_PLATFORM == "android":
    include "jnius_jvm_android.pxi"
ELIF JNIUS_PLATFORM == "win32":
    ^
------------------------------------------------------------

jnius/jnius.pyx:104:5: Compile-time name 'JNIUS_PLATFORM' not defined

Error compiling Cython file:
------------------------------------------------------------
...
include "config.pxi"
^
------------------------------------------------------------

jnius/jnius_jvm_dlopen.pxi:1:0: 'config.pxi' not found

Error compiling Cython file:
------------------------------------------------------------
...
    JAVA_HOME = os.getenv('JAVA_HOME') or find_java_home()
    if JAVA_HOME is None or JAVA_HOME == '':
        raise SystemError("JAVA_HOME is not set, and unable to guess JAVA_HOME")
    cdef str JNIUS_LIB_SUFFIX = get_jnius_lib_location(JNIUS_PLATFORM)

    IF JNIUS_PYTHON3:
      ^
------------------------------------------------------------

jnius/jnius_jvm_dlopen.pxi:89:7: Compile-time name 'JNIUS_PYTHON3' not defined

Error compiling Cython file:
------------------------------------------------------------
...

include "jnius_env.pxi"
include "jnius_utils.pxi"
include "jnius_conversion.pxi"
include "jnius_localref.pxi"
IF JNIUS_PYTHON3:
  ^
------------------------------------------------------------

jnius/jnius.pyx:113:3: Compile-time name 'JNIUS_PYTHON3' not defined



  STDERR:

Traceback (most recent call last):                                             
  File "/usr/bin/p4a", line 8, in <module>
    sys.exit(main())
  File "/usr/lib/python3.10/site-packages/pythonforandroid/entrypoints.py", line 18, in main
    ToolchainCL()
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 728, in __init__
    getattr(self, command)(args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 151, in wrapper_func
    build_dist_from_args(ctx, dist, args)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/toolchain.py", line 210, in build_dist_from_args
    build_recipes(build_order, python_modules, ctx,
  File "/usr/lib/python3.10/site-packages/pythonforandroid/build.py", line 597, in build_recipes
    recipe.build_arch(arch)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1059, in build_arch
    self.build_cython_components(arch)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1084, in build_cython_components
    self.cythonize_build(env=env)
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1130, in cythonize_build
    self.cythonize_file(env, build_dir, join(root, filename))
  File "/usr/lib/python3.10/site-packages/pythonforandroid/recipe.py", line 1119, in cythonize_file
    shprint(python_command, "-c"
  File "/usr/lib/python3.10/site-packages/pythonforandroid/logger.py", line 167, in shprint
    for line in output:
  File "/usr/lib/python3.10/site-packages/sh.py", line 953, in next
    self.wait()
  File "/usr/lib/python3.10/site-packages/sh.py", line 879, in wait
    self.handle_command_exit_code(exit_code)
  File "/usr/lib/python3.10/site-packages/sh.py", line 905, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /usr/bin/python3.10 '-cimport sys; from Cython.Compiler.Main import setuptools_main; sys.exit(setuptools_main());' ./jnius/jnius.pyx

  STDOUT:
/home/myuser/.local/lib/python3.10/site-packages/Cython/Compiler/Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: /home/myuser/.local/share/python-for-android/build/other_builds/pyjnius-sdl2/arm64-v8a__ndk_target_21/pyjnius/jnius/jnius.pyx
  tree = Parsing.p_module(s, pxd, full_module_name)

Error compiling Cython file:
------------------------------------------------------------
...
import sys
import traceback

include "jnius_compat.pxi"
include "jni.pxi"
include "config.pxi"
^
------------------------------------------------------------

jnius/jnius.pyx:100:0: 'config.pxi' not found

Error compiling Cython file:
------------------------------------------------------------
...

include "jnius_compat.pxi"
include "jni.pxi"
include "config.pxi"

IF JNIUS_PLATFORM == "android":
  ^
------------------------------------------------------------

jnius/jnius.pyx:102:3: Compile-time name 'JNIUS_PLATFORM' not defined

Error compiling Cython file:
------------------------------------------------------------
...
include "jni.pxi"
include "config.pxi"

IF JNIUS_PLATFORM == "android":
    include "jnius_jvm_android.pxi"
ELIF JNIUS_PLATFORM == "win32":
    ^
------------------------------------------------------------

jnius/jnius.pyx:104:5: Compile-time name 'JNIUS_PLATFORM' not defined

Error compiling Cython file:
------------------------------------------------------------
...
include "config.pxi"
^
------------------------------------------------------------

jnius/jnius_jvm_dlopen.pxi:1:0: 'config.pxi' not found

Error compiling Cython file:
------------------------------------------------------------
...
    JAVA_HOME = os.getenv('JAVA_HOME') or find_java_home()
    if JAVA_HOME is None or JAVA_HOME == '':
        raise SystemError("JAVA_HOME is not set, and unable to guess JAVA_HOME")
    cdef str JNIUS_LIB_SUFFIX = get_jnius_lib_location(JNIUS_PLATFORM)

    IF JNIUS_PYTHON3:
      ^
------------------------------------------------------------

jnius/jnius_jvm_dlopen.pxi:89:7: Compile-time name 'JNIUS_PYTHON3' not defined

Error compiling Cython file:
------------------------------------------------------------
...

include "jnius_env.pxi"
include "jnius_utils.pxi"
include "jnius_conversion.pxi"
include "jnius_localref.pxi"
IF JNIUS_PYTHON3:
  ^
------------------------------------------------------------

jnius/jnius.pyx:113:3: Compile-time name 'JNIUS_PYTHON3' not defined



  STDERR:

Which may suggest that altering "python3" is not robust.

Also:

kivy/buildozer#1422

[dbnicholson]

In #2593 I changed p4a to prefer the newer avdmanager in cmdline-tools/latest/bin. I don't know if that fixes buildozer, though.