Crashes with PIL.Image issues when trying to capture text

[knochenhans]

Hi, I’m running into the following issue when I try to capture text with the current build (0.3.9, also happens in 0.3.8). I guess this is some kind of version mismatch regarding PIL? I’m using python-pillow 9.2.0.

23:16:50 - INFO    - normcap:36 - Start NormCap v0.3.9
23:16:50 - DEBUG   - normcap:57 - System info:
{'cli_args': '/usr/bin/normcap', 'is_prebuild_package': None, 'platform': 'linux', 'pyside6_version': '6.3.1', 'qt_version': '6.3.1', 'qt_library_path': '/home/andre/.local/lib/python3.10/site-packages/PySide6/Qt/plugins, /usr/bin', 'config_directory': PosixPath('/home/andre/.config/normcap'), 'normcap_version': '0.3.9', 'tessdata_path': '', 'envs': {'TESSERACT_CMD': None, 'TESSERACT_VERSION': None, 'TESSDATA_PREFIX': None, 'LD_LIBRARY_PATH': None}, 'desktop_environment': <DesktopEnvironment.OTHER: 0>, 'display_manager_is_wayland': False, 'gnome_version': None, 'screens': {0: Screen(is_primary=True, device_pixel_ratio=1.0, geometry=Rect(left=0, top=0, right=1920, bottom=1080), index=0, screenshot=None)}}
23:16:50 - DEBUG   - normcap.gui.tray:51 - Set up tray icon
23:16:50 - DEBUG   - normcap.clipboard.linux:42 - Use Qt to copy to clipboard.
23:16:50 - DEBUG   - normcap.screengrab.qt:15 - Use capture method: QT
23:16:50 - DEBUG   - normcap.gui.utils:44 - Store debug image in: /tmp/normcap/2022-09-01_23-16-50_663605_raw_screen0.png
23:16:50 - DEBUG   - normcap.gui.window:51 - Create window for screen 0
23:16:50 - DEBUG   - normcap.gui.window:199 - Set window for screen 0 to fullscreen
23:16:54 - DEBUG   - normcap.gui.tray:257 - Hide 1 window(s)
23:16:54 - INFO    - normcap.gui.tray:182 - Crop image to selected region (1226, 389, 1692, 414)
23:16:54 - DEBUG   - normcap.gui.utils:44 - Store debug image in: /tmp/normcap/2022-09-01_23-16-54_169208_cropped.png
23:16:54 - DEBUG   - normcap.gui.tray:214 - Start OCR
23:16:54 - DEBUG   - normcap.ocr.enhance:54 - Resize screenshot by factor 3.2
23:16:54 - CRITICAL - normcap.gui.utils:160 - Uncaught exception! Quitting NormCap!

System:

{  'cli_args': '/usr/bin/normcap',
   'config_directory': PosixPath('/home/REDACTED/.config/normcap'),
   'desktop_environment': <DesktopEnvironment.OTHER: 0>,
   'display_manager_is_wayland': False,
   'envs': {  'LD_LIBRARY_PATH': None,
              'TESSDATA_PREFIX': None,
              'TESSERACT_CMD': None,
              'TESSERACT_VERSION': None},
   'gnome_version': None,
   'is_prebuild_package': None,
   'normcap_version': '0.3.9',
   'platform': 'linux',
   'pyside6_version': '6.3.1',
   'qt_library_path': '/home/REDACTED/.local/lib/python3.10/site-packages/PySide6/Qt/plugins, '
                      '/usr/bin',
   'qt_version': '6.3.1',
   'screens': {  0: Screen(is_primary=True,
                           device_pixel_ratio=1.0,
                           geometry=Rect(left=0,
                                         top=0,
                                         right=1920,
                                         bottom=1080),
                           index=0,
                           screenshot=None)},
   'tessdata_path': ''}

Variables:

   '_capture_to_ocr': {'self': 'REDACTED'},
   'preprocess': {  'image': <PIL.Image.Image image mode=RGB size=466x25 at 0x7FBEDCE89B40>,
                    'padding': 80,
                    'resize_factor': 3.2},
   'recognize': {  'image': <PIL.PngImagePlugin.PngImageFile image mode=RGB size=466x25 at 0x7FBEDD0DE5F0>,
                   'languages': (...,),
                   'padding_size': 80,
                   'parse': True,
                   'resize_factor': 3.2,
                   'tessdata_path': ''},
   'resize_image': {  'factor': 3.2,
                      'image': <PIL.Image.Image image mode=RGB size=466x25 at 0x7FBEDCE89B40>}}

Exception:

  AttributeError: module 'PIL.Image' has no attribute 'Resampling'

Traceback:

  File "/usr/lib/python3.10/site-packages/normcap/gui/tray.py", line 215, in _capture_to_ocr
    ocr_result = ocr.recognize(
  File "/usr/lib/python3.10/site-packages/normcap/ocr/recognize.py", line 28, in recognize
    image = enhance.preprocess(image, resize_factor=resize_factor, padding=padding_size)
  File "/usr/lib/python3.10/site-packages/normcap/ocr/enhance.py", line 82, in preprocess
    image = resize_image(image, factor=resize_factor)
  File "/usr/lib/python3.10/site-packages/normcap/ocr/enhance.py", line 57, in resize_image
    resample=Image.Resampling.LANCZOS,  # type: ignore
  File "/home/REDACTED/.local/lib/python3.10/site-packages/PIL/Image.py", line 62, in __getattr__
    raise AttributeError("module '{}' has no attribute '{}'".format(__name__, name))

[dynobo]

Thanks for reporting, @knochenhans !

Indeed, there was recently a hidden and somewhat debatable breaking API change in Pillow.

I'm working on fixing that for NormCap.