Add close figure to save memory

[lsetiawan]

Overview

Calling data_availibility multiple times creates new figures everytime, and they don't auto close, which is a problem. This PR should address this, by closing figure after creation.

[coveralls]

Pull Request Test Coverage Report for Build 245

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💛 - Coveralls

[lsetiawan]

Nevermind, problem is in the harvester side. Closing...

[pshivraj]

@lsetiawan I had similar issue sometime back with matplotlib, apparently plt.close() doesn't release memory properly. So I would suggest something like this which works:

clear figure first

plt.clf()

then close figure

plt.close(fig)

[lsetiawan]

Can that be in yodapy data_availibility function?

[lsetiawan]

Seems like if I close the plot before return, I get nothing....

[pshivraj]

Makes sense, we cannot close it before the return, won't plt.clf() clear the current plot? I think it should be session level clearance. Documentation says Clear the current figure., should we use this in the beginning of data_availability before even plotting anything to clear any residual figures?

[lsetiawan]

Let's try that! Great idea :) Thanks!