[ZEPPELIN-2511] Matplotlib angular backend doesn't update a plot for %python interpreter

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Feedback Received
• Affects Version/s: 0.7.1
• Component/s: zeppelin-interpreter

Environment

Python 3.6 and Matplotlib from Anaconda
Ubuntu 16.04

• Assignee: Unassigned
• Reporter: Alexander Rodin
• Created: 07/May/17 14:47
• Updated: 08/May/17 19:04
• Resolved: 08/May/17 18:42

Description

I'm trying to run the following code in Zeppelin using %python interpreter:

First cell:

%python

import numpy as np
import matplotlib.pyplot as plt

plt.close()
z.configure_mpl(close=False, angular=True)

x = np.linspace(0, 50, 100)
plt.plot(x, np.sin(x))

Second cell:

%python
plt.plot(x, x)

However the second cell just outputs a string

[<matplotlib.lines.Line2D object at 0x7fd225dee2e8>]

and doesn't update the plot.

I followed ZEPPELIN-1345 and the PR https://github.com/apache/zeppelin/pull/1534, and one of the comments there confirms that it should work in a %python interpreter as well as in a %pyspark one.

Issue Links

• is superceded by: ZEPPELIN-1344 Improving matplotlib integration with zeppelin