Can't add image to clipboard from share sheet extension?

felciano

Hi --

I'm trying to use Pythonista 3.4 to push some data to the clipboard, and am running into an error. The code below reproduces the problem: if I am in an app that allows you to share an image (e.g. for a social media post or similar) and I share that image with this Pythonista code, I get the following output:

Starting test
Setting clipboard image
Traceback (most recent call last):
  File "/private/var/mobile/Library/Mobile Documents/iCloud~com~omz-software~Pythonista3/Documents//pythonista-scripts/clipboard-image-test.py", line 24, in <module>
    main()
  File "/private/var/mobile/Library/Mobile Documents/iCloud~com~omz-software~Pythonista3/Documents//pythonista-scripts/clipboard-image-test.py", line 17, in main
    r1 = clipboard.set_image(my_image, format="png", jpeg_quality=1.0)
  File "/var/containers/Bundle/Application/B859D305-94CD-48F6-8589-AE439D2CCB7E/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/pythonista/clipboard.py", line 55, in set_image
    image_data = rgba_image.tostring()
  File "/var/containers/Bundle/Application/B859D305-94CD-48F6-8589-AE439D2CCB7E/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/PIL/Image.py", line 520, in __getattr__
    raise AttributeError(name)
AttributeError: tostring

It looks like Pythonista's clipboard.py is calling a rgba_image.tostring() method which no longer exists in the version of PIL shipping with Pythonista 3.4.

Has anyone else seen this? Any suggestions to work around it?

Thanks!

Sample code is below.

import importlib
import importlib.util

def main():
    print("Starting test")
    # check to see if appex library is available
    appex_spec = importlib.util.find_spec("appex")
    FOUND_APPEX_LIBRARY = appex_spec is not None
    if FOUND_APPEX_LIBRARY:
        import appex
        import clipboard
        import shortcuts

        if appex.is_running_extension():
            my_image = appex.get_image()
            print("Setting clipboard image")
            r1 = clipboard.set_image(my_image, format="png", jpeg_quality=1.0)
            print("Finished setting clipboard image")
            
        else:
            print("This demo is for Pythonista running in an extension")

if __name__ == "__main__":
    main()

ccc

try:
    import appex
    import clipboard
    import shortcuts
except ImportError:
    raise Exception("This code only runs on Pythonista on iOS.")

cvp

@felciano try this workaround

            my_image = appex.get_image(image_type='ui')
            print("Setting clipboard image")
            r1 = clipboard.set_image(my_image, format="png", jpeg_quality=1.0)
            print("Finished setting clipboard image")

But, you are right, with image_type = 'pil', the default, the clipboard.set_image crashes with error as you described (thus problem for @omz)

felciano

Thanks @cvp. That workaround addresses the immediate issue, however now it looks like the Image object returned by

my_image = appex.get_image(image_type="ui")

is missing methods as well (e.g. my_image.format fails).

Submitted https://github.com/omz/Pythonista-Issues/issues/702 and https://github.com/omz/Pythonista-Issues/issues/703 for these.

cvp

@felciano sure that an ui.Image does not have the methods of a PIL image but the clipboard.set_image allows to save an ui.Image as a format=png

felciano

@cvp I need to do other things with the image besides push it to the clipboard. Is there a way to convert it from a "ui" image to a regular "pil" image once, and then use the "pil" version going forward?

felciano

OK I think I found a workaround. Ugly, but servicable until this gets fixed in the mainline: I retrieve the share sheet image in PIL format as desired, but then convert it to to "ui" format before pushing to the clipboard. For all other uses, I have a PIL object with all the right methods.

In case anyone else runs into this, this code shows the workaround:

import importlib
import importlib.util
import io
import ui
from PIL import Image

def pil2ui(pil_img):
    with io.BytesIO() as buffer:
        pil_img.save(buffer, format='PNG')
        return ui.Image.from_data(buffer.getvalue())

def main():
    print("Starting test")
    # check to see if appex library is available
    appex_spec = importlib.util.find_spec("appex")
    FOUND_APPEX_LIBRARY = appex_spec is not None
    if FOUND_APPEX_LIBRARY:
        import appex
        import clipboard
        import shortcuts

        if appex.is_running_extension():
            my_image = appex.get_image(image_type="pil")
            # workaround: force to 'ui' format
            my_new_image = pil2ui(my_image)
            print("Setting clipboard image")
            r1 = clipboard.set_image(my_new_image, format="png", jpeg_quality=1.0)
            print("Finished setting clipboard image")
            
        else:
            print("This demo is for Pythonista running in an extension")

if __name__ == "__main__":
    main()