On Aug 5, 7:09 pm, Rotwang <sg...@hotmail.co.uk> wrote: > On 06/08/2012 00:46, PeterSo wrote: > > > > > > > > > > > I am just starting to learn Python, and I like to use the editor > > instead of the interactive shell. So I wrote the following little > > program in IDLE > > > # calculating the mean > > > data1=[49, 66, 24, 98, 37, 64, 98, 27, 56, 93, 68, 78, 22, 25, 11] > > > def mean(data): > > return sum(data)/len(data) > > > mean(data1) > > > There is no syntax highlighting and when I ran it F5, I got the > > following in the shell window. > > > >>> ================================ RESTART > > ================================ > > > Any ideas? > > I don't know what editor you're using or how it works, but I'm guessing > that pressing f5 runs what you've written as a script, right? In that > case the interpreter doesn't automatically print the result of > expressions in the same way that the interactive interpreter does; you > didn't tell it to print anything, so it didn't. > > > If I added print mean(data1), it gave me a invalid syntax > > > # calculating the mean > > > data1=[49, 66, 24, 98, 37, 64, 98, 27, 56, 93, 68, 78, 22, 25, 11] > > data2=[1,2,3,4,5] > > > def mean(data): > > return sum(data)/len(data) > > > mean(data1) > > print mean(data1) > > If you're using Python 3.x, you'll need to replace > > print mean(data1) > > with > > print(mean(data1)) > > since the print statement has been replaced with the print function in > Python 3. > > If you're instead using Python 2.x then I don't know what the problem > is, but in that case your mean() function won't work properly - the > forward slash operator between a pair of ints gives you floor division > by default, so you should instead have it return something like > float(sum(data))/len(data). > > -- > I have made a thing that superficially resembles music: > > http://soundcloud.com/eroneity/we-berated-our-own-crapiness
Your right, it is v 3 so print(mean(data1)) worked. Thanks. I still do not have any highlighting in the IDLE editor. -- http://mail.python.org/mailman/listinfo/python-list
