Re: [PR] feat: Add `flatten` array function [arrow-datafusion-python]

["ongchi (via GitHub)" <gi...@apache.org>]

ongchi commented on PR #562:
URL: https://github.com/apache/arrow-datafusion-python/pull/562#issuecomment-1929096952

   > Hello @andygrove do you mind giving me a hand with this PR ? I exposed `Flatten` in `functions.rs` but the python array function test for flatten is failing like so:
   > 
   > ```
   > name = 'flatten'
   > 
   >     def __getattr__(name):
   > >       return getattr(functions, name)
   > E       AttributeError: module 'functions' has no attribute 'flatten'
   > ```
   
   Hi @mobley-trent 
   Did you try to rebuild the package before running pytest? Like this:
   
   ```shell
   # build and install package
   maturin develop
   ```
   
   Also, don't forget to active the venv before this command.


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