jdye64 commented on code in PR #527:
URL: 
https://github.com/apache/arrow-datafusion-python/pull/527#discussion_r1373254215


##########
conda/recipes/meta.yaml:
##########
@@ -41,7 +41,6 @@ requirements:
     - {{ compiler('rust') }}
     - cargo-bundle-licenses
     - maturin >=0.15,<0.16
-    - libprotobuf =3

Review Comment:
   Substrait can still be supported in a conda environment. A user would just 
use `maturin develop/build --features protoc` however instead of having 
`libprotobuf` being a pinned dependency. We are learning that having these 
pinned dependencies to more native libraries like this often resulting in conda 
installation failures due to conflicts with popular libraries like aws 
libraries and it just seems safer to take that approach. However, if we want to 
take that risk of potential conflicts we could leave `libprotobuf` in the conda 
build file. I really don't have much of an opinion either way on it.



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