28 lines
778 B
Python
28 lines
778 B
Python
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from tempfile import NamedTemporaryFile
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from contextlib import contextmanager
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import os
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@contextmanager
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def temporary_file(suffix=''):
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"""Yield a writeable temporary filename that is deleted on context exit.
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Parameters
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----------
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suffix : string, optional
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The suffix for the file.
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Examples
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--------
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>>> import numpy as np
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>>> from skimage import io
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>>> with temporary_file('.tif') as tempfile:
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... im = np.arange(25, dtype=np.uint8).reshape((5, 5))
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... io.imsave(tempfile, im)
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... assert np.all(io.imread(tempfile) == im)
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"""
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tempfile_stream = NamedTemporaryFile(suffix=suffix, delete=False)
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tempfile = tempfile_stream.name
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tempfile_stream.close()
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yield tempfile
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os.remove(tempfile)
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