[Tutor] Rounding to n significant digits? (original) (raw)
Gregor Lingl glingl at aon.at
Mon Jul 5 00:10:50 CEST 2004
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Hello Dragonfirebane!
You have to start the code from the commandline:
Do you run windows?
- Open a MSDOS-Window
- go to the directory, where the program, say: contest.py, is located
- be sure that Python is in your path
then write something like:
C:\mycode> python contest.py 1526985643
and you will get the output. The integer 1526985643 (or any other one) is the input to the program and (automatically) stored in sys.argv[1]
(I think argv stands for argument-vector)
C:\mycode> c:\python23\python.exe contest.py 1526985643
If python isn't on your path you have to write something like:
Alternately you can use the Pythonwin IDE, where you can input arguments to a program in a special dialog when you run it.
If all this doesn't work for you, last resort is to replace sys.argv[1] directly by the input-string:
for c in "1526985643": ....
HTH, Gregor
Dragonfirebane at aol.com schrieb:
I tried out your code (for the contest) and it says that there is no sys.argv[1] (List index out of range). When i try it with sys.argv[0] it says "invalid literal for int(): C".
Email: dragonfirebane at aol.com AIM: singingxduck Programming Python for the fun of it.
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