Pandas plot a repeating dataframe

Question

I'm trying to graph a pandas dataframe that contains 2 columns as shown below:

For i in data1:
  for j in data2:
      traces.append(
           go.Scatter(
                 x=df['A'],
                  y=df['B']
               )
           )

plot

Column A has repeating values. When I Plot them it plots the first points correctly (column 'A' 1,2,3 column 'B' 2,5,6) but when it goes to plot the second set of repeating values 'A' 1,2,3 'B' 4,2,3 it draws a line from 'B' point 6 to the next point on 'B' point 2. It doesn't start again as shown below.

from this:

to this:

Answer 1

Basically, you need to plot each three lines separately:

ax = plt.axes()
df['span'] = df.index // 3 # Assign identical markers to each span
df.groupby('span').apply(lambda x: x.plot(x='A', y='B', legend=False, ax=ax)
plt.show() # If not in ipython