I'm working through Python Programming (For Python 3) by John Zelle and up until recently had been doing all my work on a MacBook Pro running 10.7. I'm working in Eclipse Juno on both platforms. I decided to move all my projects to my PC with Windows 7 and imported them into Eclipse Juno. I noticed that every app with an eval(input())
was broken, yet they had all worked on the Macbook. The same is new for any code I enter from the book. Why does this work on one platform but not the other? Here's an example of code that works in MacOS but not Windows:
def main():
sum = 0.0
count = 0
xStr = input("Enter a number (<Enter> to quit) >> ")
while xStr != "":
x = eval(xStr)
sum = sum + x
count = count + 1
xStr = input("Enter a number (<Enter> to quit) >> ")
print("\nThe average of the numbers is", sum / count)
main()
This works fine on the Mac but spits out this error in Windows:
Enter a number (<Enter> to quit) >> 5
Traceback (most recent call last):
File "C:\Users\Nostromo\workspace\Chapter 11\average4.py", line 18, in <module>
main()
File "C:\Users\Nostromo\workspace\Chapter 11\average4.py", line 12, in main
x = eval(xStr)
File "<string>", line 1
5
^
SyntaxError: unexpected EOF while parsing
What if you change input() to raw_input()?