lib/py/src/compat.py

#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
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# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
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import sys

if sys.version_info[0] == 2:

    from cStringIO import StringIO as BufferIO

    def binary_to_str(bin_val):
        return bin_val

    def str_to_binary(str_val):
        return str_val

else:

    from io import BytesIO as BufferIO

    def binary_to_str(bin_val):
        try:
            return bin_val.decode('utf8')
        except:
            return bin_val

    def str_to_binary(str_val):
        try:
            return bytes(str_val, 'utf8')
        except:
            return str_val