master seems to fail recently: https://travis-ci.org/pandas-dev/pandas/jobs/367585545

on pandas/tests/iotest_parquet.py -k s3.

works locally for me. very odd as this is mocked and shouldn't ever have a connection error.

In particular xfailing: 336fba7

• test_read_csv_chunked_download in pandas.tests.io.test_network.py
• test_s3_roundtrip for fp & pyarrow in pandas.testsio.test_parquet.py