Re: [Tutor] Help Noob Question

2014-03-28 Thread spir
On 03/28/2014 02:17 AM, Alan Gauld wrote: On 27/03/14 21:01, Chris “Kwpolska” Warrick wrote: On Mar 27, 2014 8:58 PM, "Alan Gauld" mailto:alan.ga...@btinternet.com>> wrote: > > On 27/03/14 06:43, Leo Nardo wrote: >> >> Im on windows 8 and i need to open a file called string1.py that is on >

[Tutor] Slices of lists of lists

2014-03-28 Thread Jose Amoreira
Hello! Here is something that surprised me and I still didn't get it. If we want to store a matrix in pure python (no numpy), the first thing that comes to (my) mind is to use a list of lists, like the list l below: In [1]: l=[ ...:[11,12,13], ...:[21,22,23] ...: ] We can ac

Re: [Tutor] Help Noob Question

2014-03-28 Thread Mark Lawrence
On 28/03/2014 01:17, Alan Gauld wrote: On 27/03/14 21:01, Chris “Kwpolska” Warrick wrote: On Mar 27, 2014 8:58 PM, "Alan Gauld" mailto:alan.ga...@btinternet.com>> wrote: > > On 27/03/14 06:43, Leo Nardo wrote: >> >> Im on windows 8 and i need to open a file called string1.py that is on >> m

Re: [Tutor] Slices of lists of lists

2014-03-28 Thread Bob Williams
On 28/03/14 09:42, Jose Amoreira wrote: > Hello! > Here is something that surprised me and I still didn't get it. > > If we want to store a matrix in pure python (no numpy), the first thing > that comes to (my) mind is to use a list of lists, like the list l below: > In [1]: l=[ >...:[11,1

Re: [Tutor] Slices of lists of lists

2014-03-28 Thread Jose Amoreira
Jose, Just for clarity, are you trying to access a particular *column* in your last example? Bob Yes, that's it! I wanted to say "column", not "row" in my last example. Sorry about that! Thanks Jose ___ Tutor maillist - Tutor@python.org To unsu

Re: [Tutor] Help Noob Question

2014-03-28 Thread Alan Gauld
On 28/03/14 09:28, spir wrote: On 03/28/2014 02:17 AM, Alan Gauld wrote: you have to remember where it is. There is no ~ shortcut in Windows. On my system that means typing something like: C:\Documents and Settings\alang\Desktop Can't you make a symlink pointing to Desktop? (in C:\ or anywh

Re: [Tutor] Slices of lists of lists

2014-03-28 Thread Alan Gauld
On 28/03/14 09:42, Jose Amoreira wrote: Hello! Here is something that surprised me and I still didn't get it. If we want to store a matrix in pure python (no numpy), the first thing that comes to (my) mind is to use a list of lists, like the list l below: In [1]: l=[ ...:[11,12,13],

Re: [Tutor] Slices of lists of lists

2014-03-28 Thread Jose Amoreira
On 03/28/2014 10:32 AM, Alan Gauld wrote: No, standard slices on the first element will give you sublists of the first row. Python doesn't have any concept of that second dimension, it only sees a list of items. The fact those items are themselves lists is purely incidental to the interpreter.

Re: [Tutor] Help Noob Question

2014-03-28 Thread Chris “Kwpolska” Warrick
On Fri, Mar 28, 2014 at 2:17 AM, Alan Gauld wrote: > On 27/03/14 21:01, Chris “Kwpolska” Warrick wrote: >> Painful? How painful can `cd Desktop` be? Certainly less than `D:` >> followed by `cd PythonProjects`… > > > Because the desktop is hardly ever anywhere near where the cmd prompt lands > you.

Re: [Tutor] Help Noob Question

2014-03-28 Thread Walter Prins
Hi Leo, On 27 March 2014 08:43, Leo Nardo wrote: > Im on windows 8 and i need to open a file called string1.py that is on my > desktop, in both the interpreter and notepad++, so that i can work on it. I > already have it open in notepad, but for the life of me cannot figure out > how to open it i

Re: [Tutor] Slices of lists of lists

2014-03-28 Thread spir
On 03/28/2014 10:42 AM, Jose Amoreira wrote: [...] If we want to access individual rows of this matrix like object, the standard slice notation (on the second index) works as expected also: In [3]: l[0][:] Out[3]: [11, 12, 13] In [4]: l[1][:] Out[4]: [21, 22, 23] Again, fine! No! You *made

Re: [Tutor] Help Noob Question

2014-03-28 Thread David Rock
* Chris “Kwpolska” Warrick [2014-03-28 16:27]: > > Create a folder on the desktop, or even in the home directory. A much > nicer place than the drive root — and a much modern way to store it > (drive root sounds DOS-y) I'll have to disagree with this statement. Dropping all your files in you De

[Tutor] Writing to text files

2014-03-28 Thread Nathan Curnow (Year 10)
HU. HU. HU. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] Help Noob Question

2014-03-28 Thread Alan Gauld
On 28/03/14 15:27, Chris “Kwpolska” Warrick wrote: On Fri, Mar 28, 2014 at 2:17 AM, Alan Gauld wrote: Because the desktop is hardly ever anywhere near where the cmd prompt lands you. I just tested on my Windows 7 box. It got me to C:\Users\Kwpolska. `cd Desktop` is enough. I also tested on

Re: [Tutor] Writing to text files

2014-03-28 Thread Ben Finney
"Nathan Curnow (Year 10)" <13...@budehaven.cornwall.sch.uk> writes: > HU. HU. HU. Here's hoping you improve your communication skills during Year 10, Nathan. -- \ “What we usually pray to God is not that His will be done, but | `\ that He approve ours.” —Helga Berg

Re: [Tutor] while loop

2014-03-28 Thread Scott W Dunning
On Mar 28, 2014, at 9:54 PM, Scott W Dunning wrote: > Hello, I’m working on some practice exercises from my homework and I’m having > some issues figuring out what is wanted. > > We’re working with the while loop and this is what the question states; > > Write a function print_n that prints

Re: [Tutor] while loop

2014-03-28 Thread Ben Finney
Scott W Dunning writes: > On Mar 28, 2014, at 9:54 PM, Scott W Dunning wrote: > > > We’re working with the while loop and this is what the question states; > > > > Write a function print_n that prints a string n times using iteration. > This is what I have so far but I’m not really sure it’s wh

[Tutor] while loop

2014-03-28 Thread Scott W Dunning
Hello, I’m working on some practice exercises from my homework and I’m having some issues figuring out what is wanted. We’re working with the while loop and this is what the question states; Write a function print_n that prints a string n times using iteration. """Print the string `s`

Re: [Tutor] while loop

2014-03-28 Thread Jay Lozier
On 03/29/2014 01:18 AM, Scott W Dunning wrote: On Mar 28, 2014, at 9:54 PM, Scott W Dunning wrote: Hello, I’m working on some practice exercises from my homework and I’m having some issues figuring out what is wanted. We’re working with the while loop and this is what the question states;