Question

Hi I have a variable that holds a dictionary that looks like this {'-0.1': 4, '0.9': 2, '1.9': 1, '2.9': 1, '3.9': 1, '4.9': 1}

The keys in this dictionary are generated by a value set using user input. In this instance, they vary by 1.

I would like to use ONLY this dictionary, and measure the value of the key (i.e. 0.9 - (-0.1) = 1). Trying different code, but non seem to work. Could you please help? I ve been trying to extract the first and second keys and then measure the difference, but cant seem to work out the code.

Answer 1

CODE :

# defining the dictionary
c={'-0.1': 4, '0.9': 2, '1.9': 1, '2.9': 1, '3.9': 1, '4.9': 1}

# extracting the keys from the dictionary
# logic : Every dictionary has item pair(key:value)
# and for accessing the pair, we will iterate over the items which
# would return the key-value pair and from that, we can take keys and make a list
# as the keys are in the string, we may need to map them into the float.
# map function returns non-iterable object hence we will be casting them into list
keys = list(map(float,[a for a, b in c.items()]))

# difference between two keys values
diff=keys[1]-keys[0]

#printing the diff variable
print(diff)

CODE SCREENSHOT AND OUTPUT :

Please provide feedback and comment down if any problem persists.