Use scandir to save memory

[QuantumEnergyE]

Use scandir to save memory.

[BoboTiG]

Thanks, LGTM.

Could you remove the import os from polling.py? It becomes useless.

[QuantumEnergyE]

Thanks, LGTM.

Could you remove the import os from polling.py? It becomes useless.

I have removed import os from polling.py

[BoboTiG]

Last thing, perhaps this line should mention os.scandir. Something like:

Use custom listdir function. For details see os.scandir if available, else os.listdir.

[QuantumEnergyE]

Last thing, perhaps this line should mention os.scandir. Something like:

Use custom listdir function. For details see os.scandir if available, else os.listdir.

Thanks,PTAL.

[BoboTiG]

Thanks @QuantumEnergyE!