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Day 53 - Creating Python Modules for Custom Functions

Starting with the basic calculator code created earlier in the series, we will develop a custom module to contain and re-use these functions.

Starter Code

print("#"*60)
print("##"+"Temperature Calculator".center(56)+"##")
print("#"*60+"\n")
print("""Would you like to convert from
F to C, or C to F?\n""")
print("Enter 1 for F to C")
print("Enter 2 for C to F")
strChoice = input("What do you choose?")

if (strChoice == "1"):

    strF = input("Enter the temp in F: ")
    flF = float(strF)
    flC = (flF - 32) / 1.8
    print(f"\nThe temp in C is {flC:.2f}.")

elif (strChoice == "2"):

    flC = float(input("Enter the temp in C: "))
    flF = flC * 1.8 + 32
    print(f"\nThe temp in F is {flF:.2f}.")

else:

    print("That is not a valid choice.")


print("\nThank you for trying my calculator.")

Finished Code

from myCalc import doFtoC, doCtoF

print("#"*60)
print("##"+"Temperature Calculator".center(56)+"##")
print("#"*60+"\n")
print("""Would you like to convert from
F to C, or C to F?\n""")
print("Enter 1 for F to C")
print("Enter 2 for C to F")
strChoice = input("What do you choose?")

if (strChoice == "1"):
    doFtoC()

elif (strChoice == "2"):
    doCtoF()

else:

    print("That is not a valid choice.")

print("\nThank you for trying my calculator.")


# Custom Module below:
def doFtoC():
    strF = input("Enter the temp in F: ")
    flF = float(strF)
    flC = (flF - 32) / 1.8
    print(f"\nThe temp in C is {flC:.2f}.")

def doCtoF():
    flC = float(input("Enter the temp in C: "))
    flF = flC * 1.8 + 32
    print(f"\nThe temp in F is {flF:.2f}.")