Comparing elements of one dictionary to ranges of values in another dictionary

Question

valid = {'Temp': [10, 55], 'rain_percent': [49, 100], 'humidity': [30,50]}
data = {'Temp': 30.45, 'rain_percent': 80.56 }

min_temp , max_temp = valid['Temp']
if not(min_temp <= data['Temp'] <= max_temp):
    print "Bad Temp"

min_rain , max_rain = valid['rain_percent']
if not(min_rain <= data['rain_percent'] <= max_rain):
    print "It's not going to rain"

This is what I'm doing with the 2 dictionarties I'm having. I know that this check can be further modified. Since both the dictionaries i.e valid and data have the same keys, there must be some better way of implementing this check. Can anyone help me in this? Thanks a lot.

Answer 1

If I understand the question correctly, you're trying to check if each value data[k] is in the range defined by the 2-element list/tuple valid[k].

Try using a for loop and dict.items() to iterate through data and compare each value to the corresponding range in valid:

valid = {'Temp': [10, 55], 'rain_percent': [49, 100], 'humidity': [30,50]}
data = {'Temp': 30.45, 'rain_percent': 80.56, 'humidity': 70 }

for key,val in data.items():
    min, max = valid[key]
    if not( min <= val <= max ):
       print "%s=%g is out of valid range (%g-%g)" % (key, val, min, max)
    else:
       print "%s=%g is in the valid range (%g-%g)" % (key, val, min, max)

In the case of the example data values I gave, it will print this:

rain_percent=80.56 is in the valid range (49-100)
Temp=30.45 is in the valid range (10-55)
humidity=70 is out of valid range (30-50)