Change client network from one to another doesn't seem to work on Python

[BritikovKI]

Steps to reproduce

1. Followed the steps of the tutorial here: https://in3.readthedocs.io/en/develop/api-python.html
2. Pasted connect_to_ethereum code.
3. Received an error, while trying to connect to the Kovan network and reasssign client variable.(it crashes not on the reassignment, but on the call of block_number method)

Expected behavior

Successful connection to another network, and work with it.

Actual behavior

Error:

Traceback (most recent call last):
File "test.py", line 15, in
latest_block = client.eth.block_number()
File "/home/konst/PycharmProjects/registrar/venv/lib/python3.7/site-packages/in3/eth/api.py", line 47, in block_number
return self._factory.get_integer(self._runtime.call(EthMethods.BLOCK_NUMBER))
File "/home/konst/PycharmProjects/registrar/venv/lib/python3.7/site-packages/in3/libin3/runtime.py", line 63, in call
raise ClientException(str(error))
in3.exception.ClientException: b"argument should be integer or bytes-like object, not 'str'"

System configuration

LinuxMint 19.3 (tricia). Kernel 5.3.0-62.
Python: 3.7

Incubed version

Latest version for pip

Request

eth.block_number()

Incubed Configuration

default

Chain

it is not important, it crashes on all transitions from one chain to another

[simon-jentzsch]

Thanks for reporting. I tested the example on mac and on ubuntu with the latest in3 version (3.0.1) and it worked. Maybe you can retest it after pip3 install -U in3.

[cerealkill]

I could reproduce on in3==2.5.4 but not on 3.0.1. Upgrading should remove the issue.

[cerealkill]

@BritikovKI Investigating the issue further, it is a bug in Python's http.client.HTTPConnection Sockets handling. We moved away from it in the 3.0.1 to use urllib.

[BritikovKI]

Thanks for responses, I will update incubed then.