[AVRO-3252] datafile reader fails with BytesIO stream on version 1.11

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.11.1
• Component/s: python
• Labels: pull-request-available

Environment

Windows and Linux
Python 3.6 to 3.9
avro==1.11.0

• Assignee: Unassigned
• Reporter: faph
• Created: 15/Nov/21 12:59
• Updated: 29/Apr/22 05:27
• Resolved: 20/Dec/21 18:00

Description

>>> import io
>>> import avro.datafile
>>> import avro.io
>>> data = io.BytesIO()
>>> datum_reader = avro.io.DatumReader()
>>> avro.datafile.DataFileReader(data, datum_reader)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "I:\tmpenv\lib\site-packages\avro\datafile.py", line 318, in __init__
    if "b" not in reader.mode:
AttributeError: '_io.BytesIO' object has no attribute 'mode'

Issue Links

• links to: GitHub Pull Request #1406