|  | @@ -26,7 +26,7 @@ ulimit -a
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				|  |  |  # - only add stuff that you absolutely need for your builds to work (add comment to explain why its needed)
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				|  |  |  
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				|  |  |  # Add GCP credentials for BQ access
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				|  |  | -pip install --user google-api-python-client oauth2client
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				|  |  | +pip install --user google-api-python-client oauth2client six==1.15.0
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				|  |  |  export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_GFILE_DIR}/GrpcTesting-d0eeee2db331.json
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				|  |  |  
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				|  |  |  # If this is a PR using RUN_TESTS_FLAGS var, then add flags to filter tests
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				|  | @@ -88,7 +88,7 @@ if [ "${PREPARE_BUILD_INSTALL_DEPS_PYTHON}" == "true" ]
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				|  |  |  then
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				|  |  |    # python
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				|  |  |    time pip install --user virtualenv
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				|  |  | -  time pip install --user --upgrade Mako six tox setuptools==44.1.1 twisted pyyaml pyjwt cryptography requests
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				|  |  | +  time pip install --user --upgrade Mako tox setuptools==44.1.1 twisted pyyaml pyjwt cryptography requests
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				|  |  |  
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				|  |  |    # make sure md5sum is available (requires coreutils 8.31+)
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				|  |  |    brew update-reset
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