# Note about correct python version in ray kubernetes doc

**URL:** <https://discuss.ray.io/t/note-about-correct-python-version-in-ray-kubernetes-doc/2484>\
**Category:** Kubernetes\
**Created:** [June 10, 2021, 4:21pm UTC](https://discuss.ray.io/t/note-about-correct-python-version-in-ray-kubernetes-doc/2484 "2021-06-10T16:21:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![asm582](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/asm582/32/669_2.png) [@asm582](https://discuss.ray.io/u/asm582)\
**Post date:** [June 10, 2021, 4:21pm UTC](https://discuss.ray.io/t/note-about-correct-python-version-in-ray-kubernetes-doc/2484/1 "2021-06-10T16:21:05Z")

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Hello,

I have been playing with helm. my conda env has python 3.6 but the server expects 3.7, can this be added as a note to the documentation so that the below error can be mitigated?

python ray/doc/kubernetes/example\_scripts/run\_local\_example.py  
Traceback (most recent call last):  
File “ray/doc/kubernetes/example\_scripts/run\_local\_example.py”, line 57, in   
ray.util.connect(f"127.0.0.1:{LOCAL\_PORT}")  
File “/home/asmalvan/anaconda3/envs/ray/lib/python3.6/site-packages/ray/util/client\_connect.py”, line 36, in connect  
ignore\_version=ignore\_version)  
File “/home/asmalvan/anaconda3/envs/ray/lib/python3.6/site-packages/ray/util/client/ **init**.py”, line 79, in connect  
self.\_check\_versions(conn\_info, ignore\_version)  
File “/home/asmalvan/anaconda3/envs/ray/lib/python3.6/site-packages/ray/util/client/ **init**.py”, line 108, in \_check\_versions  
raise RuntimeError(msg)  
RuntimeError: Python minor versions differ between client and server: client is 3.6.13, server is 3.7.7

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<div class="post-metadata">

**Author:** ![asm582](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/asm582/32/669_2.png) [@asm582](https://discuss.ray.io/u/asm582)\
**Post date:** [June 10, 2021, 4:56pm UTC](https://discuss.ray.io/t/note-about-correct-python-version-in-ray-kubernetes-doc/2484/2 "2021-06-10T16:56:55Z")

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FYI I am using ray1.4.0 branch

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<div class="post-metadata">

**Author:** ![Dmitri](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/dmitri/32/657_2.png) [@Dmitri](https://discuss.ray.io/u/Dmitri)\
**Post date:** [June 25, 2021, 6:21pm UTC](https://discuss.ray.io/t/note-about-correct-python-version-in-ray-kubernetes-doc/2484/3 "2021-06-25T18:21:08Z")

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Matching python versions is a difficult point.  
I think it’s covered in the docs  
[https://docs.ray.io/en/master/cluster/kubernetes.html#running-ray-programs-with-ray-client](https://docs.ray.io/en/master/cluster/kubernetes.html#running-ray-programs-with-ray-client)  
[https://docs.ray.io/en/master/cluster/ray-client.html#versioning-requirements](https://docs.ray.io/en/master/cluster/ray-client.html#versioning-requirements)  
but we should probably be louder about it e.g. by putting the warnings upfront rather than after the instructions.