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BUG: Dataframe.groupby.__getitem__ does not properly support single column #5200

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3 tasks done
devin-petersohn opened this issue Nov 7, 2022 · 0 comments · May be fixed by #5201
Open
3 tasks done

BUG: Dataframe.groupby.__getitem__ does not properly support single column #5200

devin-petersohn opened this issue Nov 7, 2022 · 0 comments · May be fixed by #5201
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bug 🦗 Something isn't working P1 Important tasks that we should complete soon pandas concordance 🐼 Functionality that does not match pandas

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@devin-petersohn
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devin-petersohn commented Nov 7, 2022

Modin version checks

  • I have checked that this issue has not already been reported.

  • I have confirmed this bug exists on the latest released version of Modin.

  • I have confirmed this bug exists on the main branch of Modin. (In order to do this you can follow this guide.)

Reproducible Example

import modin.pandas as pd

df  = pd.DataFrame(dict(col1=[0], col2=[1]))
df.groupby("col1")["col2"].mean()

Issue Description

The implementation assumes "col1" can be copied.

Expected Behavior

We should not make this assumption 😄

Error Logs

Replace this line with the error backtrace (if applicable).

Installed Versions

Replace this line with the output of pd.show_versions()

@devin-petersohn devin-petersohn added bug 🦗 Something isn't working Triage 🩹 Issues that need triage labels Nov 7, 2022
devin-petersohn added a commit to devin-petersohn/modin that referenced this issue Nov 7, 2022
@mvashishtha mvashishtha linked a pull request Nov 9, 2022 that will close this issue
7 tasks
@vnlitvinov vnlitvinov added pandas concordance 🐼 Functionality that does not match pandas P1 Important tasks that we should complete soon and removed Triage 🩹 Issues that need triage labels Nov 10, 2022
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Labels
bug 🦗 Something isn't working P1 Important tasks that we should complete soon pandas concordance 🐼 Functionality that does not match pandas
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