#

# 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 "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

# Important: the MIME library in the Python 3.x standard library used by

# apitools causes uploads containing '\r\n' to be corrupted, unless we

# patch the BytesGenerator class to write contents verbatim.

try:

# pylint: disable=wrong-import-order, wrong-import-position

# pylint: disable=ungrouped-imports

import email.generator as email_generator

from apitools.base.py import transfer

class _WrapperNamespace(object):

class BytesGenerator(email_generator.BytesGenerator):

def _write_lines(self, lines):

self.write(lines)

transfer.email_generator = _WrapperNamespace

except ImportError:

# We may not have the GCP dependencies installed, so we pass in this case.

pass