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jcupitt avatar jcupitt commented on July 19, 2024

Hello @geniass,

If you know the filetype, I would use the format-specific loader. Your IDE should be able to tell you what args it supports:

>>> help(pyvips.Image.svgload)
Help on function call_function in module pyvips.vimage:

call_function(*args, **kwargs)
    Load SVG with rsvg.
    
    Example:
       out = pyvips.Image.svgload(filename, memory = bool, access = str, dpi = float, fail = bool, scale = float)
    
    Returns:
        out (Image): Output image
    
    Args:
        filename (str): Filename to load from
    
    Keyword args:
        memory (bool): Force open via memory
        access (str): Required access pattern for this file
        dpi (float): Render at this DPI
        fail (bool): Fail on first error
        scale (float): Scale output by this factor
    
    Other Parameters:
...

I agree the error message could be better. How about:

>>> import pyvips
>>> x = pyvips.Image.new_from_file("/home/john/pics/wtc.tif", dpi=200)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pyvips/vimage.py", line 216, in new_from_file
    ), **kwargs)
  File "pyvips/voperation.py", line 181, in call
    '{1}'.format(operation_name, name))
pyvips.error.Error: VipsForeignLoadTiffFile does not support argument dpi

from pyvips.

jcupitt avatar jcupitt commented on July 19, 2024

OK, the new message is in. Thanks!

from pyvips.

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