Unable to use dask-sql due to 'dask_expr.io' module
Jul 7, 2025 · However, since dask 2025.1.0 release, dask-expr was merged in Dask. It is possible that latest versions of dask or dask-expr package are not well supported by dask-sql.
Converting an DataFrame from pandas to dask - Stack Overflow
Oct 22, 2020 · I followed this documentation dask.dataframe.from_pandas and there are optional arguments called npartitions and chunksize. So I try write something like this: import …
How to transform Dask.DataFrame to pd.DataFrame?
Aug 18, 2016 · How can I transform my resulting dask.DataFrame into pandas.DataFrame (let's say I am done with heavy lifting, and just want to apply sklearn to my aggregate result)?
Reading an SQL query into a Dask DataFrame - Stack Overflow
May 24, 2022 · I'm trying create a function that takes an SQL SELECT query as a parameter and use dask to read its results into a dask DataFrame using the dask.read_sql_query function.
dask: difference between client.persist and client.compute
Jan 23, 2017 · More pragmatically, I recommend using persist when your result is large and needs to be spread among many computers and using compute when your result is small and …
dask: looping over groupby groups efficiently - Stack Overflow
Mar 25, 2025 · for name in set(ddf['groupby_column'].unique().compute()): group = ddf[ddf['groupby_column'].eq(name)].compute() # Process each group This approach …
python - Difference between dask.distributed LocalCluster with …
Sep 2, 2019 · What is the difference between the following LocalCluster configurations for dask.distributed? Client(n_workers=4, processes=False, threads_per_worker=1) versus …
At what situation I can use Dask instead of Apache Spark?
Dask.dataframe does not attempt to implement many pandas features or any of the more exotic data structures like NDFrames Thanks to the Dask developers. It seems like very promising …
dask - Make Pandas DataFrame apply () use all cores? - Stack …
Mar 19, 2019 · As of August 2017, Pandas DataFame.apply() is unfortunately still limited to working with a single core, meaning that a multi-core machine will waste the majority of its …
python - Using Matplotlib with Dask - Stack Overflow
Jul 15, 2022 · One motivation to use dask instead of pandas is the size of the data. As such, swapping pandas DataFrame with dask DataFrame might not be feasible. Imagine a scatter …