Code: text = str(input("Type in some text: ")) number = int(input("How many times should it be printed? ")) print (text * number)
Output: Type in some text: some How many times should it be printed? 5 Traceback (most recent call last): File "test4.py", line 2, in <module> number = int(input("How many times should it be printed? ")) ValueError: invalid literal for int() with base 10: 'How many times should it be printed? 5' That is exactly how it looks like. It is happening all the time when I run program in Komodo Edit, but in IDLE everything works fine (interpreter is the same): Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information. >>> text = str(input("Type in some text: ")) Type in some text: some >>> number = int(input("How many times should it be printed? ")) How many times should it be printed? 5 >>> print (text * number) somesomesomesomesome >>> For your suggestion Code: text = str(input("Type in some text: ")) snumber = input("How many times should it be printed?") try: number = int(snumber) except ValueError: print(ssnumber, "is not an integer.") else: print (text * snumber) Output: Type in some text: some How many times should it be printed?5 How many times should it be printed?5 is not an integer. On Mon, Feb 15, 2010 at 4:06 PM, bob gailer <bgai...@gmail.com> wrote: > Yaraslau Shanhin wrote: > > > Hello All, > > Hello. > > Suggestion for future questions - just include enough to identify the > problem. We don't need to know that this is from a tutorial or what the > exercise is. Also (at least I prefer) plain text without formatting or > color. > > Sufficient therefore is: > > ------------------------------------------- > using Python 3.1: > > text = str(input("Type in some text: ")) > number = int(input("How many times should it be printed? ")) > > Traceback (most recent call last): > File "test4.py", line 2, in <module> > number = int(input("How many times should it be printed? ")) > ValueError: invalid literal for int() with base 10: > ------------------------------------------- > > Now carefully read the message "invalid literal for int()". This tells you > the argument to int is not a string representation of an integer. There is > nothing wrong with input()! > > Since we don't know what you typed at the input() prompt we can't diagnose > it further. One way to solve problems like these is to capture and print the > output of input(): > > > text = str(input("Type in some text: ")) > snumber = input("How many times should it be printed?") > print snumber > > A good robust alternative is to try int() and capture / report the failure: > > > text = str(input("Type in some text: ")) > snumber = input("How many times should it be printed?") > try: > number = int(snumber) > except ValueError: > print(number, "is not an integer.") > else: > print (text * number) > > -- > Bob Gailer > 919-636-4239 > Chapel Hill NC > >
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