python - Multiple bars for each x axis value using matplotlib -

i trying have 2 bars each time in bar chart. x axis has time , y axis has count. each time trying plot 2 bars each id.

  id    time count   585   10  9   585   11  34   585   12  96   193   10  147   193   11  85   193   12  1 

tried below code not desired results. helpful.

thanks in advance !!

  y = df1['id']   z = df1['count']    ax = plt.subplot(111)   ax.bar(y, z,width=0.2,color='b',align='center')   ax.bar(y, z,width=0.2,color='g',align='center')   ax.xaxis_date()    plt.show() 

set_index + unstack

df.set_index(['time', 'id']).count.unstack().plot.bar() 

this time count ylabel

ax = df.set_index(['time', 'id']).count.unstack().plot.bar() ax.set_ylabel('count')