Installation fails due to conflicting python-dateutil version

[NeolithEra]

Hi, users are unable to run scriptax-jupyter-kernel due to dependency conflict with python-dateutil package. As shown in the following full dependency graph of scriptax-jupyter-kernel, jupyter-client requires python-dateutil >=2.1，while apitaxcore requires python-dateutil ==2.6.0.

According to pip’s “first found wins” installation strategy, python-dateutil 2.8.1 is the actually installed version. However, python-dateutil 2.8.1 does not satisfy ==2.6.0.

Dependency tree-----------

scriptax-jupyter-kernel - 0.1.3
| +- ipykernel(install version:5.1.3 version range:*)
| +- ipython(install version:7.10.2 version range:*)
| +- jupyter-client(install version:5.3.4 version range:*)
| | +- python-dateutil(install version:2.8.1 version range:>=2.1）
| +- pytest(install version:5.3.2 version range:*)
| +- scriptax-runtime(install version:0.2.1 version range:==0.2.1)
| | +- apitaxcore(install version:3.0.9 version range:==3.0.9)
| | | +- python-dateutil(install version:2.6.0 version range:==2.6.0)
| | | | +- six(install version:1.13.0 version range:*)
| | | +- requests(install version:2.22.0 version range:*)
| | | | +- certifi(install version:2019.11.28 version range:>=2017.4.17)
| | | | +- chardet(install version:3.0.4 version range:<3.1.0,>=3.0.2)
| | | | +- idna(install version:2.8 version range:>=2.5,<2.9)
| | | | +- urllib3(install version:1.25.7 version range:<1.26,>=1.21.1)
| | | +- typing(install version:3.5.2.2 version range:==3.5.2.2)
| | | +- xmltodict(install version:0.12.0 version range:*)
| | +- click(install version:7.0 version range:*)
| | +- pytest(install version:5.3.2 version range:*)
| | +- scriptax(install version:4.0.1 version range:==4.0.1)
| | | +- antlr4-python3-runtime(install version:4.7.2 version range:*)
| | | | +- typing ; python-version(install version: version range:<3.5)
| | | +- apitaxcore(install version:3.0.9 version range:==3.0.9)
| | | | +- python-dateutil(install version:2.6.0 version range:==2.6.0)
| | | | +- requests(install version:2.22.0 version range:*)
| | | | +- typing(install version:3.5.2.2 version range:==3.5.2.2)
| | | | +- xmltodict(install version:0.12.0 version range:*)
| | | +- commandtax(install version:0.0.8 version range:==0.0.8)
| | | | +- apitaxcore(install version:3.0.6 version range:==3.0.6)
| | | | +- click(install version:7.0 version range:*)
| | | +- pydantic(install version:1.2 version range:*)
| | | +- pytest(install version:5.3.2 version range:*) 

Thanks for your help.
Best,
Neolith

[NeolithEra]

Suggested Solution

Ask your upstream project apitaxcore to loose the version range of python-dateutil.

@ShawnClake Could I submit a PR to solve this issue?