How to prevent memory leaking while plotting?

[alban-sol]

I built a led model with Colour '0.3.13', but as the project grew, I noticed a slow-down in the script due to a growing memory.

It seems that with each time plot_single_sd() is called, the memory increase. I'm not a professional programmer, so I can't dig deeper. But here is how to simply reproduce the error:

`
import colour
from colour import plotting
sample_sd_data = {
380: 0.048,
385: 0.051,
390: 0.055,
395: 0.060,
400: 0.065}
sd = colour.SpectralDistribution(sample_sd_data, name='Sample')

plotting.plot_single_sd(sd)
`

That last line will increase the memory indefinitly each time it is called.

Sorry if this is a false issue, and if it is, how can I solve this problem?
Thank you

[KelSolaar]

Hi @alban-sol,

It is very likely because Matplotlib does not close the figure automatically, try that:

import matplotlib.pyplot as plt
import colour

from colour import plotting
sample_sd_data = {
380: 0.048,
385: 0.051,
390: 0.055,
395: 0.060,
400: 0.065,
405: 0.075}
sd = colour.SpectralDistribution(sample_sd_data, name='Sample')

figure, axes = plotting.plot_single_sd(sd)
plt.close(figure)

Alternatively, you can also do that: plt.close(plotting.plot_single_sd(sd)[0])

[KelSolaar]

Closing this one for now @alban-sol, feel free to comment if it is not resolved.