AttributeError: 'LogOutputStream' object has no attribute 'line_buffering'

[sheeyang]

Chaquopy version

12.0.0

Devices or emulators where the issue happens

Emulator (Pixel 3a in android studio)

Relevant parts of your code

main.py:

from gallery_dl import job
import os


def main():

    os.chdir("/sdcard")
    return job.DownloadJob("https://www.instagram.com/instagram/").run()

the error:

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.sheeyang.gallerydownloader, PID: 8150
    com.chaquo.python.PyException: AttributeError: 'LogOutputStream' object has no attribute 'line_buffering'
        at <python>.gallery_dl.output.<module>(output.py:225)
        at <python>.java.chaquopy.import_override(import.pxi:26)
        at <python>.gallery_dl.job.<module>(job.py:17)
        at <python>.java.chaquopy.import_override(import.pxi:26)
        at <python>.gallery_dl.option.<module>(option.py:15)
        at <python>.java.chaquopy.import_override(import.pxi:26)
        at <python>.gallery_dl.<module>(__init__.py:12)
        at <python>.java.chaquopy.import_override(import.pxi:26)
        at <python>.main.<module>(main.py:12)
        at <python>.importlib._bootstrap._call_with_frames_removed(<frozen importlib._bootstrap>:219)
        at <python>.importlib._bootstrap_external.exec_module(<frozen importlib._bootstrap_external>:843)
        at <python>.java.android.importer.exec_module(importer.py:532)
        at <python>.java.android.importer.exec_module(importer.py:581)
        at <python>.importlib._bootstrap._load_unlocked(<frozen importlib._bootstrap>:671)
        at <python>.importlib._bootstrap._find_and_load_unlocked(<frozen importlib._bootstrap>:975)
        at <python>.importlib._bootstrap._find_and_load(<frozen importlib._bootstrap>:991)
        at <python>.importlib._bootstrap._gcd_import(<frozen importlib._bootstrap>:1014)
        at <python>.importlib.import_module(__init__.py:127)
        at <python>.chaquopy_java.Java_com_chaquo_python_Python_getModuleNative(chaquopy_java.pyx:155)
        at com.chaquo.python.Python.getModuleNative(Native Method)
        at com.chaquo.python.Python.getModule(Python.java:84)
        at com.sheeyang.gallerydownloader.ui.download.DownloadFragment.onCreateView(DownloadFragment.kt:35)
        at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2995)
        at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:523)
        at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:261)
        at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1840)
        at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1764)
        at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1701)
        at androidx.fragment.app.FragmentManager$4.run(FragmentManager.java:488)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7656)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

Describe your issue

When I run main.callAttrThrows("main") it throws the error
I think it might have something to do with line(241) gallery-dl/gallery_dl/output.py

[mhsmith]

Thanks for the report: we'll fix this in the next version of Chaquopy. Meanwhile, you can work around it by running the following code before importing gallery_dl:

import sys
sys.stdout.line_buffering = sys.stderr.line_buffering = True

[mhsmith]

This is caused by gallery_dl assuming that stdout and stderr are instances of TextIOWrapper, which I guess is implied by their documentation:

These streams are regular text files like those returned by the open() function.

But they're currently implemented by inheriting the superclass, TextIOBase.

Related: #746.

[mhsmith]

This issue was fixed in Chaquopy 14.0.2. To upgrade, edit your app's top-level build.gradle file and change the version number of com.chaquo.python.