from io import BytesIO import pytest from pandas import read_csv def test_streaming_s3_objects(): # GH17135 # botocore gained iteration support in 1.10.47, can now be used in read_* pytest.importorskip("botocore", minversion="1.10.47") from botocore.response import StreamingBody data = [b"foo,bar,baz\n1,2,3\n4,5,6\n", b"just,the,header\n"] for el in data: body = StreamingBody(BytesIO(el), content_length=len(el)) read_csv(body) @pytest.mark.single_cpu def test_read_without_creds_from_pub_bucket(s3_public_bucket_with_data, s3so): # GH 34626 pytest.importorskip("s3fs") result = read_csv( f"s3://{s3_public_bucket_with_data.name}/tips.csv", nrows=3, storage_options=s3so, ) assert len(result) == 3 @pytest.mark.single_cpu def test_read_with_creds_from_pub_bucket(s3_public_bucket_with_data, monkeypatch, s3so): # Ensure we can read from a public bucket with credentials # GH 34626 # temporary workaround as moto fails for botocore >= 1.11 otherwise, # see https://github.com/spulec/moto/issues/1924 & 1952 pytest.importorskip("s3fs") monkeypatch.setenv("AWS_ACCESS_KEY_ID", "foobar_key") monkeypatch.setenv("AWS_SECRET_ACCESS_KEY", "foobar_secret") df = read_csv( f"s3://{s3_public_bucket_with_data.name}/tips.csv", nrows=5, header=None, storage_options=s3so, ) assert len(df) == 5