Difference between code in REPL and in main.py

[smssms]

I am using a WiPy to read a TCS34725 colour sensor.

When I run the code as snippets from the REPL, the readings are rock solid. But when the same code is running within main.py the sensor readings are drifting (significantly and predictably).

It is a long shot, but is there any fundamental reason there might be a difference?

https://forums.adafruit.com/viewtopic.p ... 68#p573868

[deshipu]

I would say that timing can make a difference -- perhaps waiting longer between readings makes the sensor work better?