do not allow mutating grouping columns

machow / siuba

Python library for using dplyr like syntax with pandas and SQL

https://siuba.org

MIT License

1.16k stars 49 forks source link

Open machow opened 5 years ago

machow commented 5 years ago

This should throw an error

from siuba.data import mtcars
from siuba import _, group_by, transmute
mtcars >> group_by(_.cyl) >> transmute(cyl = _.cyl + 1),

Instead does terrible things

machow commented 5 years ago

For timeboxing--recommend splitting by pandas and SQL