human
pandas plot dataframe barplot with colors by category
assistant
Here is some code to make a barplot of data in column `group` of dataframe `df` colour-coded according to list `color`

df['group'].plot(kind='bar', color=['r', 'g', 'b', 'r', 'g', 'b', 'r'])

#Warning: this code generation is experimental. Please inspect the code for any bugs before executing.