Python 3 - undefined symbol: PyString_AsStringAndSize

[dondrake]

Description

I built librdkafka and confluent-kafka-python from source to get Kerberos support in Python 3.6.4 both from the trunk in github.

When I attempt to run my simple producer script, I get the following error:

python /home/drake/kafka_web/producer_confluent.py
   Traceback (most recent call last):
     File "/home/drake/kafka_web/producer_confluent.py", line 2, in <module>
       from confluent_kafka import Producer
     File "/home/drake/anaconda3/lib/python3.6/site-packages/confluent_kafka-0.11.4-py3.6-linux-x86_64.egg/confluent_kafka/__init__.py", line 2, in <module>
       from .cimpl import (Consumer,  # noqa
   ImportError: /home/drake/anaconda3/lib/python3.6/site-packages/confluent_kafka-0.11.4-py3.6-linux-x86_64.egg/confluent_kafka/cimpl.cpython-36m-x86_64-linux-gnu.so: undefined symbol: python /home/drake/kafka_web/producer_confluent.py
   Traceback (most recent call last):
     File "/home/drake/kafka_web/producer_confluent.py", line 2, in <module>
       from confluent_kafka import Producer
     File "/home/drake/anaconda3/lib/python3.6/site-packages/confluent_kafka-0.11.4-py3.6-linux-x86_64.egg/confluent_kafka/__init__.py", line 2, in <module>
       from .cimpl import (Consumer,  # noqa
   ImportError: /home/drake/anaconda3/lib/python3.6/site-packages/confluent_kafka-0.11.4-py3.6-linux-x86_64.egg/confluent_kafka/cimpl.cpython-36m-x86_64-linux-gnu.so: undefined symbol: PyString_AsStringAndSize 

The function PyString_AsStringAndSize appears to be a Python2 API call, when this is running in a Python 3 environment.

How to reproduce

Install Anaconda Python 3.6
git clone confluent-kafka-python
setup.py build
setup.py install

Checklist

Please provide the following information:

• confluent-kafka-python and librdkafka version (confluent_kafka.version() and confluent_kafka.libversion()):
• Apache Kafka broker version:
• Client configuration: {...}
• Operating system: Ubuntu 4.15.0
• Provide client logs (with 'debug': '..' as necessary)
• Provide broker log excerpts
• Critical issue

[edenhill]

I stumbled on this myself the other day, it is fixed on the adminapi branch and there will be a fix on master end of this week.

If you want to fix it in your own checkout before that you can change these two lines:
f6cda94#diff-7f37a18128203131290cbd7cf43cd1e4L1015

[dondrake]

Yes, that two line change worked!

Thanks.

[rnpridgeon]

Fixed with #382