Fix support for Python 3.8

[fkromer]

Description

Installing kedro-viz under Python 3.8 is not possible.

Context

Python 3.8 support of kedro has been added recently. kedro-viz does not support Python 3.8 yet: python_requires=">=3.6, <3.8",

Steps to Reproduce

1. Install Python 3.8
2. Install kedro
3. Try to install kedro-viz

Expected Result

Successful installation of kedro-viz.

Actual Result

Installation aborts.

$ kedro --version
kedro, version 0.16.1
$ pip3 install --user kedro-viz
ERROR: Could not find a version that satisfies the requirement kedro-viz (from versions: none)
ERROR: No matching distribution found for kedro-viz

Your Environment

Include as many relevant details as possible about the environment you experienced the bug in:

• Operating system and version: Ubuntu 20.04
• Kedro version used (if relevant): 0.16.1
• Python version used (if relevant): 3.8.2

[richardwestenra]

Thanks for raising this @fkromer! This will be resolved in #173 :)

We are hoping to merge this PR today, and to release the new version of Kedro-Viz with 3.8 support, ideally within the next 24 hours or so. Watch this space ;)

[921kiyo]

Hi @fkromer I've just merged #173, so I'm closing this issue and the new Kedro-Viz release is on the way :)

[fkromer]

@richardwestenra @921kiyo Thanks a lot!