Q:

ValueError: Invalid RGBA argument: 'o'

I am trying to draw a scatter plot in Python with color code stored in 'color' column of dataframe.  And I get invalid RGBA argument error. 
Here's my code and data:
df.plot.scatter(x='x', y='y', c='color')  

      id         x     type     color     y
0    109       570.4       ha     r     500.8
1    110       632.4       ha     r     567.2
2    111       399.4       of     b     487.2
3    112       250.2       of     b     444.4  

...

A:

I just solved it by this code. 
col = df['type'].map({'ha':'r', 'of':'b', 'cu':'y'})
df.plot.scatter(x='x', y='y', c=col)

