Python Math Problem

Years ago I got a lot of help with a script to covert rain totals in MM to Inches. This has worked just fine but now with the Python 3 update, I've got a small problem. Here is the code:

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rain = indigo.variables[1938961] #rain in mm
inches = "{:.2f}".format(float(rain.value) *.03937) #coverts mm to inches
indigo.variable.updateValue(1852577407, inches) #inserts inches into variable



and my only issue is now the calculation is giving me too many decimal places. I think the

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"{:.2f}"

was taking care of this, but no longer. I'm pretty sure this happened with the Python 3 update, but am not 100% sure. I've looked at this link
https://python.shiksha/tips/limiting-float-upto-2-places/
but can't figure out where some of this should go in my equation. I even tried reformatting the calculation result before it is written to the variable, but again, had no luck, so I'm hoping there is a way to limit the calculation to just 2 decimal places.

That format string is working properly for me.

Maybe a screen shot of the variables?

[jay (support)]

I also tried it and it works:

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>>> rain = indigo.variables[534204190]
>>> print(rain.value)
5.582394
>>> inches = "{:.2f}".format(float(rain.value) *.03937) #coverts mm to inches
>>> print(inches)
0.22
>>> indigo.variable.updateValue(595336786, inches)
>>> rain_inches = indigo.variables[595336786] # "inches_var"
>>> print(rain_inches.value)
0.22

So I'm unclear on where it's going wrong. I'd recommend doing prints in between the steps to help isolate where the problem might be.

Ok so looks like something else may be wrong... but am I right in assuming the

"{:.2f}"

limits the output to 2 decimal places?

Ok so looks like something else may be wrong... but am I right in assuming the

"{:.2f}"

limits the output to 2 decimal places?

Yes