python: command not found

[bummoblizard]

Hi holzschu :)
It's my first time trying out ios_system and everything seems to be working fine except python.

I linked python3_ios framework obtained from here to the project and transferred the python scripts to the library. For some reason ios_system is not recognising it and always show command not found. What am I missing?

[holzschu]

Hi,
python3_ios has been replaced by cpython: https://github.com/holzschu/cpython/
The latter is easier to update (for the maintainer), has Python 3.9, and provides all packages in a single compilation step.

[bummoblizard]

Thanks for the reply! Though I do realise that and is using the xcframework here: https://github.com/holzschu/cpython/releases

There's no error message from Xcode what so ever. Is there anything I need to modify in CommandsDictionary.plist?

[bummoblizard]

There is indeed. I copied the configuration from a-shell's commandDectionary.plist. Everything works great now!

Thanks for the reply! Though I do realise that and is using the xcframework here: https://github.com/holzschu/cpython/releases

There's no error message from Xcode what so ever. Is there anything I need to modify in CommandsDictionary.plist?

[holzschu]

Yes (I thought they were in, but apparently not). Also, the releases are outdated (I'm going to remove them). cpython generates 1000+ frameworks, so it is difficult to make them available as a github release. I suggest cloning the cpython repository as a submodule and compiling locally.

        <key>python3</key>
        <array>
                <string>python3_ios.framework/python3_ios</string>
                <string>Py_BytesMain</string>
                <string>3bBc:dEhiJm:OQ:RsStuUvVW:xX?</string>
                <string>file</string>
        </array>
        <key>python</key>
        <array>
                <string>python3_ios.framework/python3_ios</string>
                <string>Py_BytesMain</string>
                <string>3bBc:dEhiJm:OQ:RsStuUvVW:xX?</string>
                <string>file</string>
        </array>
        <key>pythonA</key>
        <array>
                <string>pythonA.framework/pythonA</string>
                <string>Py_BytesMain</string>
                <string>3bBc:dEhiJm:OQ:RsStuUvVW:xX?</string>
                <string>no</string>
        </array>

[bummoblizard]

Hello, I have successfully compiled cpython and Python works as intended. However, I couldn't get the submodules, for example math, to work. It gives me an ImportError of image not found. Is there a proper way to embed these modules into my Xcode project?

[holzschu]

Hi, you need to add the frameworks requried by the modules you want (so python*-math.xcframework, for the math module) to the list of embedded frameworks (see "Build phases" -> "Embed Frameworks"). No need to link with them, but they must be embedded.

[bummoblizard]

I tried that and it's still not working. Any idea?

[holzschu]

I have no idea. Here's what it looks like on my side:

I could maybe understand more with the actual error message.

[bummoblizard]

Here's the screenshot and the error message from stderr:

[holzschu]

Hi,
OK, I see things better now. First, you don't need to link with the python frameworks, only with ios_system.framework (you do need to embed them, but apparently you did). Here's what it looks like for me:

Second, it's worth checking if the framework you embedded is actually complete. With ios_system, you can issue commands like ls $APPDIR/Frameworks/python3_ios-math.framework/ and check whether python3_ios-math is present.