[Bug]: Pandas plot does not accept Columns for color keyword

[mosc9575]

Bug summary

I tried to plot a scatterplot with different groups, with one color for each group. I thought is is enought to pass the name of the column to the color-keyword, but this throws an error:

ValueError: 'c' argument must be a color, a sequence of colors, or a sequence of numbers, not ['color'].

Code for reproduction

import pandas as pd

df = pd.DataFrame({
 'A': {1: 6, 2: 2, 3: 1, 4: 8, 5: 6},
 'B': {1: 2, 2: 10, 3: 3, 4: 1, 5: 1},
 'pos': {1: 1, 2: 2, 3: 4, 4: 1, 5: 1},
 'color': {1: 'red', 2: 'blue', 3: 'green', 4: 'red', 5: 'red'}
})

df >>>
   A   B  color
1  6   2    red
2  2  10   blue
3  1   3  green
4  8   1    red
5  6   1    red


# s.plot(x='A', y='B', kind='scatter', color=s['color'].values)
df.plot(x='A', y='B', kind='scatter', color='color')

Actual outcome

Right now I get an error:
ValueError: 'c' argument must be a color, a sequence of colors, or a sequence of numbers, not ['color'].

Expected outcome

I expect this figure, which was generated using the commented line

s.plot(x='A', y='B', kind='scatter', color=s['color'].values)

Additional information

No response

Operating system

Linux-5.10.0-8-amd64-x86_64-with-glibc2.31

Matplotlib Version

3.4.3

Matplotlib Backend

module://matplotlib_inline.backend_inline

Python version

3.9.7

Jupyter version

6.4.4

Installation

conda

[jklymak]

We don't maintain df.plot, so please take up with pandas.pydata.org. Thanks!

[mosc9575]

@jklymak Thank you for you response. You are rigth, this is the wrong Repo.

[jklymak]

The issue could still be on our side, but if so, then please isolate it to work without pandas....

[mosc9575]

@jklymak I came back to this issue and I found out that scatter has the keyword c instead of color which is used in bar. This seems like an inconsistency and not very intuativ (to mee).

Since pandas trys to pass the keywords without any changes, the c keyword can be found in both libraries.

Is this a bug and should this issue be reopend?

[jklymak]

No this has been this way for many years, and changing has been discussed and rejected in the past.

[mosc9575]

Thanks for your response. In this case this is closed for me, too.