For those who want to install Airflow 1.10.* today and failing. Please
check your PIP version.

PIP 20.3 was released yesterday (https://pip.pypa.io/en/stable/news/) and
it contains a new resolver that might break installation for older versions
of Airflow.

The solution (for now) is to downgrade to 20.2.4 before installing Airflow:

pip install --upgrade pip==20.2.4

Our Dockerfiles (both for 2.0 and upcoming 1.10.14) will have pip pinned to
2.20.4 for now: https://github.com/apache/airflow/pull/12738

I have also managed to get non-conflicting dependencies a few days ago for
both 2.0 and 1.10 and while I had problems with the new resolver when I
tested it in the old PIP I will try to make it works.

Hopefully, both 2.0 and the upcoming 1.10.14 will work with the new pip.

Thank you for your understanding!

J.


-- 

Jarek Potiuk
Polidea <https://www.polidea.com/> | Principal Software Engineer

M: +48 660 796 129 <+48660796129>
[image: Polidea] <https://www.polidea.com/>

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