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Python Functional Python Functional Workhorses Map and Filter Comprehension

Posted by Sean Coutinho
Sean Coutinho
7,788 Points

Using a list comprehension

I'm still having challenges usinng thhe list comprehension syntax where on my code should I change? Or rather I should just restart everything

temps.py 
temperatures = [
    37,
    0,
    25,
    100,
    13.2,
    29.9,
    18.6,
    32.8
]

def c_to_f(temp):
    """Returns Celsius temperature as Fahrenheit"""
    return temp * (9/5) + 32

good_temps = [temperature for temperature in map(c_to_f, temperatures) if temperature > 9 and temperature < 32.6]

1 Answer

Pedro Cabral
Pedro Cabral
33,586 Points
Pedro Cabral
Pedro Cabral
33,586 Points

Code challenge asks: "Convert each Celsius temperature into Fahrenheit, but only if the Celsius temperature is between 9 and 32.6."

But what you are doing is: "Convert each Celsius temperature into Fahrenheit, but keep the value only if the Fahrenheit temperature is between 9 and 32.6."

Hope it helps.

Sean Coutinho
Sean Coutinho
7,788 Points

I get where you're coming from but now I don't know where to change

Pedro Cabral
Pedro Cabral
33,586 Points

In plain english, you'll want to:

[execute the function on temperature, for each temperature in the list of temperatures, if the condition is met]

Or closer to python code:

[execute_the_function_on(temperature) for temperature in list_of_temperatures if condition_is_met]