Float values as dictionary key

Question

I am developing a class for the analysis of microtiter plates. The samples are described in a separate file and the entries are used for an ordered dictionary. One of the ke

Answer 1

Another quick option is to use strings of the float

a = 200.01234567890123456789
b = {str(a): 1}
for key in b:
    print(float(key), b[key])

would print out

(200.012345679, 1)

notice a gets truncated at tenth digit after decimal point.