#-----------------------------------------------------------------------------
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# Copyright (c) 2013-2023, PyInstaller Development Team.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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#
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# The full license is in the file COPYING.txt, distributed with this software.
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#
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# SPDX-License-Identifier: Apache-2.0
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#-----------------------------------------------------------------------------
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# matplotlib will create $HOME/.matplotlib folder in user's home directory. In this directory there is fontList.cache
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# file which lists paths to matplotlib fonts.
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#
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# When you run your onefile exe for the first time it's extracted to for example "_MEIxxxxx" temp directory and
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# fontList.cache file is created with fonts paths pointing to this directory.
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#
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# Second time you run your exe new directory is created "_MEIyyyyy" but fontList.cache file still points to previous
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# directory which was deleted. And then you will get error like:
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#
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# RuntimeError: Could not open facefile
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#
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# We need to force matplotlib to recreate config directory every time you run your app.
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import atexit
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import os
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import shutil
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import tempfile
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# Put matplot config dir to temp directory.
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configdir = tempfile.mkdtemp()
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os.environ['MPLCONFIGDIR'] = configdir
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try:
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# Remove temp directory at application exit and ignore any errors.
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atexit.register(shutil.rmtree, configdir, ignore_errors=True)
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except OSError:
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pass
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