from PIL import ImageFile, Image

ImageFile.LOAD_TRUNCATED_IMAGES = True

with Image.open("/Users/kp/dev/pil_psd_test/struct_error_file.psd") as img:
    print(img.format, img.size, img.mode)

Traceback (most recent call last):
  File "/Users/kp/dev/sandbox/pil_psd_test.py", line 48, in <module>
    with Image.open("/Users/kp/dev/pil_psd_test/struct_error_file.psd") as img:
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/Image.py", line 3309, in open
    raise UnidentifiedImageError(msg)
PIL.UnidentifiedImageError: cannot identify image file '/Users/kp/dev/pil_psd_test/struct_error_file.psd'

...
DEBUG:PIL.Image:
Traceback (most recent call last):
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/ImageFile.py", line 137, in __init__
    self._open()
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/PsdImagePlugin.py", line 132, in _open
    self.layers = _layerinfo(_layer_data, size)
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/PsdImagePlugin.py", line 249, in _layerinfo
    t = _maketile(fp, m, bbox, 1)
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/PsdImagePlugin.py", line 261, in _maketile
    compression = i16(read(2))
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/_binary.py", line 81, in i16be
    return unpack_from(">H", c, o)[0]
struct.error: unpack_from requires a buffer of at least 2 bytes for unpacking 2 bytes at offset 0 (actual buffer size is 0)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/Image.py", line 3276, in _open_core
    im = factory(fp, filename)
  File "/Users/kp/dev/sandbox/.venv/lib/python3.9/site-packages/PIL/ImageFile.py", line 145, in __init__
    raise SyntaxError(v) from v
SyntaxError: unpack_from requires a buffer of at least 2 bytes for unpacking 2 bytes at offset 0 (actual buffer size is 0)
...

see above