48 lines
1.2 KiB
Python
48 lines
1.2 KiB
Python
# Copyright 2019 Red Hat
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from __future__ import absolute_import
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import sys
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import tobiko
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def import_lzma():
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try:
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import lzma
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except ImportError:
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from backports import lzma
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return lzma
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def has_lzma():
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try:
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return import_lzma()
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except ImportError:
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return None
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def open_file(filename, mode):
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try:
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lzma = import_lzma()
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except ImportError:
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tobiko.skip_test(
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"Package lzma or backports.lzma is required to decompress "
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f"{filename!r} (mode={mode!r}) XZ image file "
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f"({sys.version!r}).")
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return lzma.LZMAFile(filename=filename, mode=mode)
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