VER: Release databento-python 0.8.1

Author: cjdsellers

CHANGELOG.md

@@ -1,7 +1,11 @@
 # Changelog
 
+## 0.8.1 - 2023-03-05
+- Fixed bug in `Bento` iteration where multiple readers were created
+- Added `from_dbn` convenience alias for loading DBN files
+
 ## 0.8.0 - 2023-03-03
-- Integrate DBN encoding `0.3.2`
+- Integrated DBN encoding `0.3.2`
 - Renamed `timeseries.stream` to `timeseries.get_range`
 - Renamed `timeseries.stream_async` to `timeseries.get_range_async`
 - Deprecated `timeseries.stream(...)` method

databento/version.py

@@ -1 +1 @@
-__version__ = "0.8.0"
+__version__ = "0.8.1"

requirements_dev.txt

@@ -1,4 +1,4 @@
-mypy>=0.991
+mypy>=1.0.1
 pytest>=7.2.0
 pytest-mock>=3.10.0
 types-requests

tests/test_historical_bento.py

@@ -1,8 +1,10 @@
+import collections
 import datetime as dt
 import sys
 from pathlib import Path
 from typing import List, Tuple, Union
 
+import databento
 import numpy as np
 import pandas as pd
 import pytest
@@ -184,6 +186,18 @@ def test_to_ndarray_with_stub_data_returns_expected_array() -> None:
     )
 
 
+def test_iterator_produces_expected_data() -> None:
+    # Arrange
+    stub_data = get_test_data(schema=Schema.MBO)
+    data = Bento.from_bytes(data=stub_data)
+
+    # Act (consume iterator)
+    handler = collections.deque(data)
+
+    # Assert
+    assert len(handler) == 2
+
+
 def test_replay_with_stub_data_record_passes_to_callback() -> None:
     # Arrange
     stub_data = get_test_data(schema=Schema.MBO)
@@ -372,14 +386,28 @@ def test_to_df_with_pretty_px_with_various_schemas_converts_prices_as_expected(
 def test_from_file_given_various_paths_returns_expected_metadata(
     expected_schema: Schema,
 ) -> None:
-    # Arrange, Act
+    # Arrange
     path = get_test_data_path(schema=expected_schema)
+
+    # Act
     data = Bento.from_file(path=path)
 
     # Assert
     assert data.schema == expected_schema
 
 
+def test_from_dbn_alias() -> None:
+    # Arrange
+    path = get_test_data_path(schema=Schema.MBO)
+
+    # Act
+    data = databento.from_dbn(path=path)
+
+    # Assert
+    assert data.schema == Schema.MBO
+    assert data.record_count == 2
+
+
 def test_mbo_to_csv_writes_expected_file_to_disk(tmp_path: Path) -> None:
     # Arrange
     test_data_path = get_test_data_path(schema=Schema.MBO)