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[python-client 2.6.0] ContextualVersionConflict grpcio dependency conflict

See original GitHub issue

Describe the bug When installing pulsar-client==2.6.0 there’s a dependency conflict with grpcio library.

The dependency tree is (as I understand it):

pulsar-client (2.6.0)
- grpcio (any)
- apache-bookkeeper-client (4.11.0)
  - grpcio >=1.8.2,<1.26.0

To Reproduce Steps to reproduce the behavior:

pip install pulsar-client==2.6.0
grpcio==1.30.0 gets installed
If I try to build my own pip package with pulsar-client as dependency, and try to build it, I get the ContextualVersionConflict error

Expected behavior I expect the correct version to be installed and/or the dependency tree to be fixed.

Screenshots Screenshot from 2020-07-08 09-17-09

Desktop (please complete the following information):

OS: Ubuntu 20.04

Issue Analytics

State:
Created 3 years ago
Comments:5 (5 by maintainers)

Top GitHub Comments

1reaction

lbenc135commented, Jul 16, 2020

@sijie It’s a bit complicated because it involves having a python package which requires another python package.

Basically it seems the problem is that in version 4.11.0 of apache-bookkeeper-client there was an explicit requirement added: grpcio<1.26.0, while in 4.10.0 this was only >=1.8.2. Since pulsar-client itself requires grpcio, but does not specify a version, pip installs the newest (maybe the solution is removing this dependency?).

Setuptools verifies all the dependencies of my python package and throws this error.

I temporarily solved it by explicitly adding grpcio==1.25.0 in my requirements.txt.

0reactions

jbelliscommented, Feb 10, 2021

I ran into this today.

It looks like BookKeeper revved its requirement to include up to 1.28, but in the meantime grpcio released even more versions which are not compatible (1.35 is the latest now).

I think Pulsar client needs to specify a grpcio version that matches a version compatible with the appropriate BK release.

Until then the Python client is effectively uninstallable for the majority of people trying to follow the docs.

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