Compress elif statement

user_15755164 0
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I'm learning Python and would like to know if it's a way to compress the elif statements in the code below. Instead of having 12 different elif statements, I would like a function that can loop over this data structure. Can someone could help me?

character = input("Write a character from A-Z: ")
list = [["A",4],["A-",3.7],["B+",3.3],["B",3],["B-",2.7],["C+",2.3],["C",2],
        ["C-",1.7],["D+",1.3],["D",1],["D-",0.7],["F",0]]
text = "The value number is "

if character in list[0]:
    print(text + str(float(list[0][1])))
elif character in list[1]:
    print(text + str(float(list[1][1])))
elif character in list[2]:
    print(text + str(float(list[2][1])))
elif character in list[3]:
    print(text + str(float(list[3][1])))
elif character in list[4]:
    print(text + str(float(list[4][1])))
elif character in list[5]:
    print(text + str(float(list[5][1])))
elif character in list[6]:
    print(text + str(float(list[6][1])))
elif character in list[7]:
    print(text + str(float(list[7][1])))
elif character in list[8]:
    print(text + str(float(list[8][1])))
elif character in list[9]:
    print(text + str(float(list[9][1])))
elif character in list[10]:
    print(text + str(float(list[10][1])))
elif character in list[11]:
    print(text + str(float(list[11][1])))
elif character in list[12]:
    print(text + str(float(list[12][1])))
else:
    print("Write a character from A-F")
count python
1 Answers

You can use a dictionary, and then search by key. This will be faster than searching in a list, especially when the number of elements gets large (which requires possibly examining every element in the list, rather than just performing a single lookup).

character = input("Write a character from A-Z: ")
data = {"A": 4, "A-": 3.7, "B+": 3.3, "B": 3, "B-": 2.7,
    "C+": 2.3, "C": 2, "C-": 1.7, "D+": 1.3, "D": 1, "D-": 0.7, "F": 0}
        
if character in data:
    print(f"The value number is {data[character]}")
else:
    print("Write a character from A-F")
user_177698150
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