Problemsby GlyphTrouble with Polars columns
2 posts from 2 people2d activeFading, +0 this weekunverified
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The posts behind it
write_database writes in wrong columns when dataframe columns have different creation order
### Checks - [x] I have checked that this issue has not already been reported. - [x] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of Polars. ### Reproducible example First, create a mysql database with docker: Once DB is running,...
Member None of Any | None does not have attribute with_columns - polars & PyCharm problem
...PyCharm. . Run the code. . Reinstall PyCharm. . Use. df = cast(pl.DataFrame, df) This does not work, PyCharm now gives me another warning "Expected a type"; proof:. . . Windows Updates. . The last line doesn't do anything, replacing it with. df = df.with_columns(y=pl.col("x") +...
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About this problem
Evidence
2 posts from 2 people in 2 places, about 1 a week over 9 days. Mostly on Stack Overflow [python-polars], pola-rs/polars. Tools named alongside: JetBrains, MySQL, Docker, PyPI.
Frustration Frustration 0 of 3· Seen on Stack Overflow, GitHub issues
How it was grouped
Posts about Polars with no known issue, sharing the word "columns". First post Sep 27, 2026, latest Oct 5, 2026. Unverified: fewer than 3 posts, or one person or place only. Method
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