github.com/apache/beam/sdks/v2@v2.48.2/python/apache_beam/io/gcp/__init__.py (about)

     1  #
     2  # Licensed to the Apache Software Foundation (ASF) under one or more
     3  # contributor license agreements.  See the NOTICE file distributed with
     4  # this work for additional information regarding copyright ownership.
     5  # The ASF licenses this file to You under the Apache License, Version 2.0
     6  # (the "License"); you may not use this file except in compliance with
     7  # the License.  You may obtain a copy of the License at
     8  #
     9  #    http://www.apache.org/licenses/LICENSE-2.0
    10  #
    11  # Unless required by applicable law or agreed to in writing, software
    12  # distributed under the License is distributed on an "AS IS" BASIS,
    13  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  # See the License for the specific language governing permissions and
    15  # limitations under the License.
    16  #
    17  
    18  # Important: the MIME library in the Python 3.x standard library used by
    19  # apitools causes uploads containing '\r\n' to be corrupted, unless we
    20  # patch the BytesGenerator class to write contents verbatim.
    21  try:
    22    # pylint: disable=wrong-import-order, wrong-import-position
    23    # pylint: disable=ungrouped-imports
    24    import email.generator as email_generator
    25    from apitools.base.py import transfer
    26  
    27    class _WrapperNamespace(object):
    28      class BytesGenerator(email_generator.BytesGenerator):
    29        def _write_lines(self, lines):
    30          self.write(lines)
    31  
    32    transfer.email_generator = _WrapperNamespace
    33  except ImportError:
    34    # We may not have the GCP dependencies installed, so we pass in this case.
    35    pass