"Matplotlib does not support generators as input. When i try to plot list with scatter() "

Question

Here is my code:

import matplotlib.pyplot as plt

x_values = list(range(1,1001))
y_values = (x**2 for x in x_values)
plt.scatter(x_values,y_values,s=10)
#range of axis
plt.axis([0,1100,0,1100000])
plt.show()

Whenever i try to plot a list of numbers through scatter method in python, I always get the error that "matplotlib does not support generatore". Is there any solution?

Image of code

oh sorry ! here is the code bro : import matplotlib.pyplot as plt x_values = list(range(1,1001)) y_values = (x**2 for x in x_values) plt.scatter(x_values ,y_values,s=10) #range of axis plt.axis([0,1100,0,1100000]) plt.show() — Ali Iftikhar, Apr 17 '20 at 18:03
@AliIftikhar you should edit the question post to add your code and replace the link to the image. — Bash, Apr 17 '20 at 18:04
@Ali I [edit]ed your question for you and pasted the code. Next time, please edit your source yourself. — Patrick Artner, Apr 17 '20 at 18:07
You can plot your function even simpler by using `x = plt.linspace(0, 100, num=20)` and `y = x**2`. — fhgd, Apr 17 '20 at 18:25

score 1 · Answer 1 · answered Apr 17 '20 at 18:02

By doing

y_values = (x**2 for x in x_values)

you create a generator.

Make it a list and feed that:

import matplotlib.pyplot as plt

x_values = list(range(1,1001)) 
y_values = [x**2 for x in x_values]   # list - not generator
plt.scatter(x_values,y_values,s=10)

plt.axis([0,1100,0,1100000])
plt.show()

to get

See:

Understanding generators in Python

"Matplotlib does not support generators as input. When i try to plot list with scatter() "

1 Answers1