Why won't my function execute - python-2.7

Question

I'm relatively new to python and the only other experience I've had is C++. Whenever I define a function in Python, I can't seem to execute it.
This my current code for my assignment, if possible I just want to know why my code won't execute
def birthexp(birthyear):
product = birthyear**birthyear
length = len(str(product))
onesCount = str(product).count("1")
threeCount = str(product).count("3")
fiveCount = str(product).count("5")
sevenCount = str(product).count("7")
nineCount = str(product).count("9")
sumCount = onesCount+threeCount+fiveCount+sevenCount+nineCount
oneRation = onesCount/float(length)*100
threeRatio = threeCount/float(length)*100
fiveRatio = fiveCount/float(length)*100
sevenRatio = sevenCount/float(length)*100
nineRatio = nineCount/float(length)*100
totalRatio = sumCount/float(length)*100
print(str(product) + ": product after multiplying the birth year to itself.")
print(str(onesCount) + ": number of ones found at a rate of " +str(oneRation)+ "percent.")
print(str(threeCount) + ": number of threes found at a rate of " +str(threeRatio)+ "percent")
print(str(fiveCount) + ": number of fives found at a rate of " +str(fiveRatio)+ "percent")
print(str(sevenCount) + ": number of sevens found at a rate of " +str(sevenRatio)+ "percent")
print(str(nineCount) + ": number of nine found at a rate of " +str(nineRatio)+ "percent")
print(str(sumCount) + ": total odd numbers found at a rate of " +str(totalRatio)+ "percent")
birthyear(1990)

Answer 1

You have a typo in this line totalRatio = sumCount/floar(length)*100. You need float instead of floar.
Secondly, you have loads of missing parenthesis in almost all lines with the print function.
If you want the function to return value, you should use return instead of print's:
return (str(product)
+ ": product after multiplying the birth year to itself.\n"
+ str(onesCount)
+ ": number of ones found at a rate of " + str(oneRation) + "percent.\n"
+ str(threeCount)
+ ": number of threes found at a rate of " + str(threeRatio) + "percent\n"
+ str(fiveCount)
+ ": number of fives found at a rate of " + str(fiveRatio) + "percent\n"
+ str(sevenCount)
+ ": number of sevens found at a rate of " + str(sevenRatio) + "percent\n"
+ str(nineCount)
+ ": number of nine found at a rate of " + str(nineRatio) + "percent\n"
+ str(sumCount)
+ ": total odd numbers found at a rate of " + str(totalRatio) + "percent\n")