Cryptography dependency conflict

[amin-nejad]

Describe the bug

Running pip-compile from pip-tools on dbt (alone) fails due to a a dependency conflict with the cryptography library.

Steps To Reproduce

pip install pip-tools && echo dbt > requirements.in && pip-compile requirements.in

Expected behavior

A requirements.txt file generated with the pinned dependencies.

Screenshots and log output

System information

The operating system you're using: macOS Big Sur 11.0.1

The output of python --version: 3.8.5

pip-tools version: 5.4.0

Additional context

Appears related to #2896

[jtcohen6]

Right on @amin-nejad, I believe this will be resolved in the next version of dbt, which upgrades both the snowflake-connector-python and cryptography dependencies of dbt-snowflake (#2922).

In the meantime, we don't have any commitments around officially supporting pip-tools or pip-compile (#2674, #2676). Our assurances are just around your ability to run pip install dbt.

From looking quickly at the error message, it appears that pip-compile is picking up pyOpenSSL==20.0.0, which requires cryptography>=3.2, whereas snowflake-connector-python@2.2.10 requires pyOpenSSL anywhere between 16.2.0 and 21.0.0.