23 lines
810 B
Diff
23 lines
810 B
Diff
diff --git a/sympy/printing/preview.py b/sympy/printing/preview.py
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index 52085e5e19..f9b1d2dd5c 100644
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--- a/sympy/printing/preview.py
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+++ b/sympy/printing/preview.py
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@@ -27,12 +27,12 @@ def _check_output_no_window(*args, **kwargs):
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def _run_pyglet(fname, fmt):
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from pyglet import window, image, gl
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from pyglet.window import key
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+ from pyglet.image.codecs import ImageDecodeException
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- if fmt == "png":
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- from pyglet.image.codecs.png import PNGImageDecoder
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- img = image.load(fname, decoder=PNGImageDecoder())
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- else:
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- raise ValueError("pyglet preview works only for 'png' files.")
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+ try:
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+ img = image.load(fname)
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+ except ImageDecodeException:
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+ raise ValueError("pyglet preview does not work for '{}' files.".format(fmt))
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offset = 25
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