Float values as dictionary key
dictionary, floating-point, key, python
Solution
There's no problem using floats as dict keys.
Just `round(n, 1)` them to normalise them to your keyspace. eg.
>>> hash(round(6.84, 1))
3543446220
>>> hash(round(6.75, 1))
3543446220
Problem
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 keys is pH, which is usually given as float. e.g 6.8 I could import it as decimal with `Decimal('6.8')` in order to avoid a float as dict key. Another solution would be to replace the dot with e.g p like 6p8 or to write 6p8 in my sample description and therefore eliminating the problem at the beginning. But this would cause troubles later on since i cannot plot pH of 6p8 in my figures. How would you solve this issue?