Thrift2 DemoClient.py

hbase-examples/py

I tried to connect to hbase thrift2 server with python with given demo file DemoClient.py.  Issue is the DemoClient.py is not updated for python 3.X.  Python 2.X support has ended. Even the github vesrion is not updated, happy to update it. 

I'm using python 3.8. Attached file for DemoClient.py for python 3.X. I'm new to Jira and hbase.  __ 

hbase.thrift file that was used to generate gen-py in 2.2.22 release examples does seem like this file hbase-src-2.2.2/hbase-thrift/src/main/resources/org/apache/hadoop/hbase/thrift2/hbase.thrift. I'm looking for hbase.thrift that was used to get gen-py in py examples. If you can point me to that, that will be great.

If you generate gen-py using thrift compiler 0.13, this is error that I'm getting when running DemoClient.py, 

Traceback (most recent call last):
File "DemoClient.py", line 68, in <module>
client.put(table, put)
File "/Users/madhuseshadri/Projects/hbase-pyclient-thrift2/gen-py/hbase/THBaseService.py", line 813, in put
self.send_put(table, tput)
File "/Users/madhuseshadri/Projects/hbase-pyclient-thrift2/gen-py/hbase/THBaseService.py", line 821, in send_put
args.write(self._oprot)
File "/Users/madhuseshadri/Projects/hbase-pyclient-thrift2/gen-py/hbase/THBaseService.py", line 4461, in write
oprot.writeBinary(self.table)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/thrift-0.13.0-py3.8-macosx-10.9-x86_64.egg/thrift/protocol/TBinaryProtocol.py", line 131, in writeBinary
self.trans.write(str)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/thrift-0.13.0-py3.8-macosx-10.9-x86_64.egg/thrift/transport/TTransport.py", line 174, in write
raise e
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/thrift-0.13.0-py3.8-macosx-10.9-x86_64.egg/thrift/transport/TTransport.py", line 170, in write
self.__wbuf.write(buf)
TypeError: a bytes-like object is required, not 'str'

Please note that I'm using 0.13 py client package for thrift. It does not work with thrift==0.9.3 as well.

Out of the box gen-py that came with 2.2.2 source examples has the following issues working with thrift 0.13 py packages and it is also not code generated for python 3.0 but 2.0.

• ttypes.py > self._dict._iteritems() does not work in python 3.0, so it need to be items 
• xrange does not work in python 3.0 so all that need to be range 

thrift compiler 0.13 was available at this point from apache/thrift. It generates the files for python 2.0 it seems because of above two issues because hbase.thrift that is src (link given above), not sure what can be done about this. 

So, I have 0.13 python thrift package which works with python 3.0. DemoClient.py updated to 3.0 but issue is gen-py generation. I don't want to edit these generated py files, so if right hbase.thrift file that works with thrift 0.13.0 compiler, that will be great. Thanks.