플롯에 주석이 달린 히트 맵을 플롯하는 방법은 무엇입니까?

줄거리에서 주석이 달린 히트 맵을 만들려고합니다.

import plotly.plotly as py
import plotly.tools as tls
from plotly.graph_objs import *
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt

df = pd.read_csv('masterc.csv')

locations = {}
anno = []

for i in range(df.shape[0]):
    locations.setdefault((df.iat[i,2],df.iat[i,6]),0)
    locations[(df.iat[i,2],df.iat[i,6])]+=df.iat[i,8]

x1 = []
y1 = []
z1 = []
z1_text = []

for key in locations.keys():
    if key[0] not in x1:
        x1 += [key[0],]
    if key[1] not in y1:
        y1 += [key[1],]



for y in y1:
    dummy = []
    for x in x1:
        if (x,y) in locations.keys():
            dummy += [locations[(x,y)],]
        else:
            dummy += [0,]
    z1 += [dummy,]

data = z1

arr = np.array(data)

fig, ax = plt.subplots()

ax.imshow(data, cmap='seismic')

for (i, j), z in np.ndenumerate(data):
    ax.text(j, i, '{:f}'.format(z), ha='center', va='center')

ax.set_xticklabels(x1, rotation=90)
ax.set_yticklabels(y1)

#plt.show()
py.plot_mpl(fig)

다음과 같은 경고가 표시됩니다.

Warning (from warnings module):
  File "C:\Python27\lib\site-packages\plotly\matplotlylib\renderer.py", line 394
    warnings.warn("Aw. Snap! You're gonna have to hold off on "
UserWarning: Aw. Snap! You're gonna have to hold off on the selfies for now. Plotly can't import images from matplotlib yet!

그리고 마지막으로 다음 오류

Traceback (most recent call last):
  File "E:\Project Kumbh\heatmap with annotations.py", line 58, in <module>
    py.plot_mpl(fig)
  File "C:\Python27\lib\site-packages\plotly\plotly\plotly.py", line 261, in plot_mpl
    return plot(fig, **plot_options)
  File "C:\Python27\lib\site-packages\plotly\plotly\plotly.py", line 155, in plot
    figure = tools.return_figure_from_figure_or_data(figure_or_data, validate)
  File "C:\Python27\lib\site-packages\plotly\tools.py", line 1409, in return_figure_from_figure_or_data
    if not figure['data']:
KeyError: 'data'

어쨌든이 오류를 피할 수 있습니까? 아니면 플롯에 주석이 달린 히트 맵을 만드는 간단한 방법이 있습니까?