Agg backend for speed in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the Agg backend in matplotlib for faster rendering.

Matplotlib

import matplotlib
matplotlib.use('[1]')

Drag options to blanks, or click blank then click option'

AQt5Agg

BAgg

CTkAgg

DWebAgg

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing an interactive backend like TkAgg or Qt5Agg which are slower.

Using WebAgg which is for web-based interactive plots.

The Agg backend in matplotlib is a non-interactive backend that renders images quickly and is suitable for scripts and batch jobs.

2fill in blank

medium

Complete the code to save a plot as a PNG file using the Agg backend.

Matplotlib

import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6])
plt.savefig('[1]')

Drag options to blanks, or click blank then click option'

Aplot.pdf

Bplot.svg

Cplot.png

Dplot.jpg

Attempts:

3 left

💡 Hint

Common Mistakes

Saving as SVG or PDF which are vector formats and not rendered by Agg.

Using JPG which is less common for matplotlib default.

Saving the plot as a PNG file uses the Agg backend for fast raster image output.

3fill in blank

hard

Fix the error in the code to correctly set the Agg backend before importing pyplot.

Matplotlib

import matplotlib
matplotlib.use('[1]')
import matplotlib.pyplot as plt
plt.plot([1, 2], [3, 4])

Drag options to blanks, or click blank then click option'

AWebAgg

BTkAgg

CQt5Agg

DAgg

Attempts:

3 left

💡 Hint

Common Mistakes

Setting backend after importing pyplot causes errors.

Using interactive backends instead of Agg.

The backend must be set before importing pyplot. The correct order is to import matplotlib, set the backend to Agg, then import pyplot.

4fill in blank

hard

Fill both blanks to create a figure and save it using the Agg backend.

Matplotlib

import matplotlib
matplotlib.use('[1]')
import matplotlib.pyplot as plt
fig = plt.[2]()
fig.savefig('output.png')

Drag options to blanks, or click blank then click option'

AAgg

BTkAgg

Cfigure

DFigure

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Figure' (uppercase) which is not a valid pyplot method.

Choosing an interactive backend like TkAgg.

Set the backend to Agg before importing pyplot. Use plt.figure() to create a figure object.

5fill in blank

hard

Fill all three blanks to set the Agg backend, create a plot, and save it as a PNG file.

Matplotlib

import matplotlib
matplotlib.use('[1]')
import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6])
plt.[2]('[3]')

Drag options to blanks, or click blank then click option'

ATkAgg

Bsavefig

Cplot.png

DAgg

Attempts:

3 left

💡 Hint

Common Mistakes

Setting backend after importing pyplot.

Using wrong filename extension.

Using wrong method to save the plot.

Set the backend to Agg before importing pyplot. Use savefig to save the plot as plot.png.