Re: [Tutor] Lists of duplicates

On 2017-03-09 06:07, Steven D'Aprano wrote: On Wed, Mar 08, 2017 at 08:29:19PM -0800, Alex Kleider wrote: Things like this can usually be broken down into their component parts but I've been unsuccessful doing so: def f(lst): res = {} for item in lst: method_res =

Re: [Tutor] Lists of duplicates

On Wed, Mar 08, 2017 at 08:29:19PM -0800, Alex Kleider wrote: > The algorithm I came up with is: > def make_sublists_of_duplicates(original_list): > frequency_counter = {} > for item in original_list: > _ = frequency_counter.setdefault(item, 0) > frequency_counter[item] +=

Re: [Tutor] Lists of duplicates

On Wed, Mar 08, 2017 at 08:29:19PM -0800, Alex Kleider wrote: > Things like this can usually be broken down into their component parts > but I've been unsuccessful doing so: > > def f(lst): > res = {} > for item in lst: > method_res = res.setdefault(item, []) >

Re: [Tutor] Lists of duplicates

On Thu, Mar 09, 2017 at 01:26:26AM +0530, Sri Kavi wrote: > I wrote and submitted the following function: > > def sublist_duplicates(lst): > sublists = [] > for item in set(lst): > sublists.append([item] * lst.count(item)) > return sublists > > lst_of_duplicates = [1, 2, 10,

Re: [Tutor] Lists of duplicates

On 03/08/2017 12:56 PM, Sri Kavi wrote: > As part of my learning, I was participating in a discussion at: > > > > https://discuss.codecademy.com/t/python-lists-of-duplicated-elements/78151 > > > > It’s about making a function that returns a list of lists, with each list > being all of the

Re: [Tutor] Lists of duplicates

On 09/03/17 06:06, Alex Kleider wrote: > It seems you are simply kicking the can down the road rather than > explaining how it it is that dot notation actually works. The dot notation is just a method access. Dictionaries are like any other object and have many methods. > To access a

Re: [Tutor] Lists of duplicates

On 09/03/17 04:29, Alex Kleider wrote: >> I'd probably opt for a dictionary: >> >> def f(lst): >> res = {} >> for item in lst: >> res.setdefault(item,[]).append(item) >> return list(res.values()) >> > The above works BUT > how setdefault returns the current value for the key

Re: [Tutor] Lists of duplicates

Alan Gauld via Tutor wrote: > On 08/03/17 19:56, Sri Kavi wrote: > >> It’s about making a function that returns a list of lists, with each list >> being all of the elements that are the same as another element in the >> original list. > > This is one of those problems where there is probably no

Re: [Tutor] Lists of duplicates

On 2017-03-08 21:14, boB Stepp wrote: Alex, I think you can break this down as follows: py3: res = {} py3: def key_item_to_res(item): ... res.setdefault(item, []).append(item) ... py3: key_item_to_res(3) py3: res {3: [3]} py3: key_item_to_res(3) py3: res {3: [3, 3]} py3: key_item_to_res(2)

Re: [Tutor] Lists of duplicates

On Wed, Mar 8, 2017 at 10:29 PM, Alex Kleider wrote: > On 2017-03-08 17:03, Alan Gauld via Tutor wrote: >> >> My first reaction was to sort the initial list then iterate >> over it creating a new sublist for each change of value. >> But, it only works for homogenous lists.

Re: [Tutor] Lists of duplicates

On 2017-03-08 17:03, Alan Gauld via Tutor wrote: On 08/03/17 19:56, Sri Kavi wrote: It’s about making a function that returns a list of lists, with each list being all of the elements that are the same as another element in the original list. This is one of those problems where there is

Re: [Tutor] Lists of duplicates

On 08/03/17 19:56, Sri Kavi wrote: > It’s about making a function that returns a list of lists, with each list > being all of the elements that are the same as another element in the > original list. This is one of those problems where there is probably no definitive "correct" answer just

[Tutor] Lists of duplicates

As part of my learning, I was participating in a discussion at: https://discuss.codecademy.com/t/python-lists-of-duplicated-elements/78151 It’s about making a function that returns a list of lists, with each list being all of the elements that are the same as another element in the original

Re: [Tutor] lists+sort

On Mon, Jan 04, 2016 at 12:34:57PM -0500, Pooja Bhalode wrote: > Hi, I wanted to check if this program can be used to merge the lists > together and sort them. This seems to work, but i wanted to check if there > are drawbacks in writing it in this manner. > > My solution: > > def

Re: [Tutor] lists+sort

Pooja Bhalode wrote: > Hi, I wanted to check if this program can be used to merge the lists > together and sort them. This seems to work, but i wanted to check if there > are drawbacks in writing it in this manner. When you start out lists are the natural datatype to use, but as you get more

Re: [Tutor] Lists+sorting

Hi, Yes, I tried sending the mail again in plain text. But I think I understood the difference there in using built-in sort function and writing the code without using that. Thank you On Mon, Jan 4, 2016 at 12:45 PM, Joel Goldstick wrote: > On Mon, Jan 4, 2016 at

[Tutor] lists+sort

Hi, I wanted to check if this program can be used to merge the lists together and sort them. This seems to work, but i wanted to check if there are drawbacks in writing it in this manner. My solution: def linear_merge(list1, list2): for num in list2: list1.append(num)

Re: [Tutor] lists+sort

On Mon, Jan 4, 2016 at 12:34 PM, Pooja Bhalode wrote: > Hi, I wanted to check if this program can be used to merge the lists > together and sort them. This seems to work, but i wanted to check if there > are drawbacks in writing it in this manner. > > > My solution: > >

Re: [Tutor] lists+sort

On Mon, Jan 4, 2016 at 5:35 PM, Danny Yoo wrote: > On Jan 4, 2016 11:00 AM, "Pooja Bhalode" wrote: > > > > Hi, I wanted to check if this program can be used to merge the lists > > together and sort them. This seems to work, but i wanted to check

Re: [Tutor] lists+sort

On Jan 4, 2016 11:00 AM, "Pooja Bhalode" wrote: > > Hi, I wanted to check if this program can be used to merge the lists > together and sort them. This seems to work, but i wanted to check if there > are drawbacks in writing it in this manner. You may be missing some

Re: [Tutor] lists+sort

> > You may also take a look at this link: > http://stackoverflow.com/questions/7237875/linear-merging-for-lists-in-python > > It appears that the poster was going through Googles python tutorials Hi Joel, Ah. Nice catch! Yes, that looks like it. It looks like this comes from the material at

[Tutor] Lists+sorting

Hi, I wanted to check if I can write the following program in this manner as well. The problem is to merge the lists together and sort them.The solution they have given is: def linear_merge(list1, list2): result = [] while len(list1) and len(list2): if list1[0] < list2[0]:

Re: [Tutor] Lists+sorting

On 04/01/16 16:56, Pooja Bhalode wrote: > Hi, > I wanted to check if I can write the following program in this manner as > well. > Can you resend in plain text please? Your post lost all its formatting so its hard to read or comment on. > def linear_merge(list1, list2): > result = [] > while

Re: [Tutor] Lists+sorting

On Mon, Jan 4, 2016 at 12:27 PM, Alan Gauld wrote: > On 04/01/16 16:56, Pooja Bhalode wrote: > > Hi, > > I wanted to check if I can write the following program in this manner as > > well. > > > > Can you resend in plain text please? > Your post lost all its formatting

Re: [Tutor] lists, name semantics

On 04/19/2015 12:07 AM, boB Stepp wrote: . Before Peter changed one of these changeable objects, he had: a = [1, [x, y], 3] b = a[:] Now BOTH a[1] and b[1] now identify the location of the inner list object, [x, y] . Apparently, Python, in its ever efficient memory management fashion,

Re: [Tutor] lists, name semantics

On 04/19/2015 03:08 PM, boB Stepp wrote: On Sun, Apr 19, 2015 at 6:47 AM, Dave Angel da...@davea.name wrote: On 04/19/2015 12:07 AM, boB Stepp wrote: [...] I hope this is helpful, and, if there are any misstepps, that when they are revealed both of our understandings will be enhanced!

Re: [Tutor] lists, name semantics

On Sun, Apr 19, 2015 at 6:23 PM, boB Stepp robertvst...@gmail.com wrote: On Sun, Apr 19, 2015 at 4:05 PM, Dave Angel da...@davea.name wrote: On 04/19/2015 03:08 PM, boB Stepp wrote: Or is the real point that we are adding an abstraction layer so we don't even have to think about where

Re: [Tutor] lists, name semantics

In a message of Sun, 19 Apr 2015 17:23:13 -0500, boB Stepp writes: On Sun, Apr 19, 2015 at 4:05 PM, Dave Angel da...@davea.name wrote: abstract, and the details are unimportant to the user. For example, the jython system does not use addresses at all. And an object gets moved around from time

Re: [Tutor] lists, name semantics

On Sun, Apr 19, 2015 at 12:24 AM, Cameron Simpson c...@zip.com.au wrote: On 19Apr2015 15:09, Cameron Simpson c...@zip.com.au wrote: On 18Apr2015 23:26, boB Stepp robertvst...@gmail.com wrote: On Sat, Apr 18, 2015 at 11:08 PM, Cameron Simpson c...@zip.com.au wrote: [...] Two problems often

Re: [Tutor] lists, name semantics

On Sun, Apr 19, 2015 at 6:47 AM, Dave Angel da...@davea.name wrote: On 04/19/2015 12:07 AM, boB Stepp wrote: [...] I hope this is helpful, and, if there are any misstepps, that when they are revealed both of our understandings will be enhanced! Some of your knowledge of other languages is

Re: [Tutor] lists, name semantics

On 04/19/2015 06:28 PM, Joel Goldstick wrote: On Sun, Apr 19, 2015 at 6:23 PM, boB Stepp robertvst...@gmail.com wrote: On Sun, Apr 19, 2015 at 4:05 PM, Dave Angel da...@davea.name wrote: On 04/19/2015 03:08 PM, boB Stepp wrote: Or is the real point that we are adding an abstraction layer

Re: [Tutor] lists, name semantics

In a message of Sun, 19 Apr 2015 19:19:27 -0400, Dave Angel writes: Good answer. The java jvm garbage collector is free to move blocks around to defrag the free space. Correct. FWIW, I'm told the ID value used is a simple integer, that indexes a list containing the actual addresses. Also

Re: [Tutor] lists, name semantics

In a message of Sun, 19 Apr 2015 17:23:13 -0500, boB Stepp writes: The last sentence in this paragraph has me intrigued. Why would an object, once it has been created, be moved? What practical benefit does doing this give? boB If you have more than enough memory in your system, you never do this

Re: [Tutor] lists, name semantics

On 20/04/15 00:29, Laura Creighton wrote: So in this case, the binding value is an integer, not an address. Utterly wrong. The binding value has to be an address. I think it depends on how you define 'binding' value. In Python binding is the connection between a name and an object. So in a

Re: [Tutor] lists, name semantics

On Sun, Apr 19, 2015 at 4:05 PM, Dave Angel da...@davea.name wrote: On 04/19/2015 03:08 PM, boB Stepp wrote: Or is the real point that we are adding an abstraction layer so we don't even have to think about where objects are physically stored in RAM? Somebody keeps track, but the address

Re: [Tutor] lists, name semantics

Everyone that responded, Thanks very much for the excellent explanations! The distinction between a reference to an object and a seperate copy of the object is quite clear now. --Bill On Apr 18, 2015 1:44 AM, Alan Gauld alan.ga...@btinternet.com wrote: On 18/04/15 04:16, Bill Allen wrote:

Re: [Tutor] lists, name semantics

Bill Allen wrote: Everyone that responded, Thanks very much for the excellent explanations! The distinction between a reference to an object and a seperate copy of the object is quite clear now. You can test your newfound knowledge by predicting the output of the following script: a =

Re: [Tutor] lists, name semantics

print(b) will print the original copy of a which b now references which is [1, [x, y], 3] On Apr 18, 2015 7:50 AM, Peter Otten __pete...@web.de wrote: Bill Allen wrote: Everyone that responded, Thanks very much for the excellent explanations! The distinction between a reference to an

Re: [Tutor] lists, name semantics

On Sat, Apr 18, 2015 at 3:28 PM, Bill Allen walle...@gmail.com wrote: On Apr 18, 2015 7:50 AM, Peter Otten __pete...@web.de wrote: Bill Allen wrote: Everyone that responded, Thanks very much for the excellent explanations! The distinction between a reference to an object and a

Re: [Tutor] lists, name semantics

On Apr 18, 2015 4:11 PM, boB Stepp robertvst...@gmail.com wrote: On Sat, Apr 18, 2015 at 3:28 PM, Bill Allen walle...@gmail.com wrote: On Apr 18, 2015 7:50 AM, Peter Otten __pete...@web.de wrote: Bill Allen wrote: Everyone that responded, Thanks very much for the excellent

Re: [Tutor] lists, name semantics

On Sat, Apr 18, 2015 at 10:03 PM, Bill Allen walle...@gmail.com wrote: On Apr 18, 2015 4:11 PM, boB Stepp robertvst...@gmail.com wrote: On Sat, Apr 18, 2015 at 3:28 PM, Bill Allen walle...@gmail.com wrote: On Apr 18, 2015 7:50 AM, Peter Otten __pete...@web.de wrote: Bill Allen wrote:

Re: [Tutor] lists, name semantics

On 18Apr2015 22:03, Bill Allen walle...@gmail.com wrote: On Apr 18, 2015 4:11 PM, boB Stepp robertvst...@gmail.com wrote: On Sat, Apr 18, 2015 at 3:28 PM, Bill Allen walle...@gmail.com wrote: On Apr 18, 2015 7:50 AM, Peter Otten __pete...@web.de wrote: You can test your newfound knowledge by

Re: [Tutor] lists, name semantics

On Sat, Apr 18, 2015 at 11:08 PM, Cameron Simpson c...@zip.com.au wrote: Sometimes you want a deep copy, where b would have got a copy of the iriginal x-y list. See the copy module's deepcopy function, which supplies this for when it is needed:

Re: [Tutor] lists, name semantics

On 18Apr2015 23:26, boB Stepp robertvst...@gmail.com wrote: On Sat, Apr 18, 2015 at 11:08 PM, Cameron Simpson c...@zip.com.au wrote: Sometimes you want a deep copy, where b would have got a copy of the iriginal x-y list. See the copy module's deepcopy function, which supplies this for when it

Re: [Tutor] lists, name semantics

On 19Apr2015 15:09, Cameron Simpson c...@zip.com.au wrote: On 18Apr2015 23:26, boB Stepp robertvst...@gmail.com wrote: On Sat, Apr 18, 2015 at 11:08 PM, Cameron Simpson c...@zip.com.au wrote: Sometimes you want a deep copy, where b would have got a copy of the iriginal x-y list. See the copy

Re: [Tutor] lists, name semantics

On 18/04/15 04:16, Bill Allen wrote: If I have a list defined as my_list = ['a','b','c'], what is the is differnce between refering to it as my_list or my_list[:]? These seem equivalent to me. Is that the case? Is there any nuance I am missing here? Situations where one form should be used

Re: [Tutor] lists, name semantics

Ben Finney ben+pyt...@benfinney.id.au writes: Bill Allen walle...@gmail.com writes: If I have a list defined as my_list = ['a','b','c'], what is the is differnce between refering to it as my_list or my_list[:]? ‘my_list’ is a reference to the object you've already described (the existing

Re: [Tutor] lists, name semantics

On 04/17/2015 11:51 PM, Ben Finney wrote: Ben Finney ben+pyt...@benfinney.id.au writes: Bill Allen walle...@gmail.com writes: If I have a list defined as my_list = ['a','b','c'], what is the is differnce between refering to it as my_list or my_list[:]? ‘my_list’ is a reference to the

[Tutor] lists, name semantics

If I have a list defined as my_list = ['a','b','c'], what is the is differnce between refering to it as my_list or my_list[:]? These seem equivalent to me. Is that the case? Is there any nuance I am missing here? Situations where one form should be used as opposed to the other? Thanks, Bill

Re: [Tutor] lists, name semantics

Bill Allen walle...@gmail.com writes: If I have a list defined as my_list = ['a','b','c'], what is the is differnce between refering to it as my_list or my_list[:]? ‘my_list’ is a reference to the object you've already described (the existing object ‘['a', 'b', 'c']’). ‘my_list[:]’ is an

Re: [Tutor] lists, name semantics

Good evening Bill, If I have a list defined as my_list = ['a','b','c'], what is the is differnce between refering to it as my_list or my_list[:]? These seem equivalent to me. Is that the case? Is there any nuance I am missing here? Situations where one form should be used as opposed to

Re: [Tutor] lists of lists: more Chutes Ladders!

My point was: `iter` the func exists in python (built-in with '-'), one may use it at times. Giving an application var this name hides, which accosionnally leads to bugs. I have been bitten by such a bug more than once in the past, and once hard to find, asp. with the built-in func `range` (a

Re: [Tutor] lists of lists: more Chutes Ladders!

On 01/01/2014 08:04, Danny Yoo wrote: My point was: `iter` the func exists in python (built-in with '-'), one may use it at times. Giving an application var this name hides, which accosionnally leads to bugs. I have been bitten by such a bug more than once in the past, and once hard to find,

Re: [Tutor] lists of lists: more Chutes Ladders!

On 31/12/2013 07:30, Keith Winston wrote: Never mind, I figured out that the slice assignment is emptying the previous lists, before the .reset() statements are creating new lists that I then populate and pass on. It makes sense. On Tue, Dec 31, 2013 at 12:59 AM, Keith Winston

Re: [Tutor] lists of lists: more Chutes Ladders!

On 12/31/2013 06:59 AM, Keith Winston wrote: I resolved a problem I was having with lists, but I don't understand how! I caught my code inadvertently resetting/zeroing two lists TWICE at the invocation of the game method, and it was leading to all the (gamechutes gameladders) lists returned by

Re: [Tutor] lists of lists: more Chutes Ladders!

Thanks Denis, I found out about the iter builtin last night, a few hours after I'd coded/posted that. Oops. Thanks for your other comments, I am clearer now about the distinction of creating a new, empty list vs. clearing the same list out, and the subsequent implications on other symbols bound to

Re: [Tutor] lists of lists: more Chutes Ladders!

On 12/31/2013 09:46 PM, Keith Winston wrote: Thanks Denis, I found out about the iter builtin last night, a few hours after I'd coded/posted that. Oops. Thanks for your other comments, I am clearer now about the distinction of creating a new, empty list vs. clearing the same list out, and the

Re: [Tutor] lists of lists: more Chutes Ladders!

On Tue, Dec 31, 2013 at 4:27 AM, spir denis.s...@gmail.com wrote: In addition, iter is also the name of a builtin function, like print. While iter is a built-in function, it would be clearer if you referenced the __builtins__ namespace. Built-in objects are linked into the interpreter, either

Re: [Tutor] lists of lists: more Chutes Ladders!

On Tue, Dec 31, 2013 at 10:00:32PM -0500, eryksun wrote: On Tue, Dec 31, 2013 at 4:27 AM, spir denis.s...@gmail.com wrote: In addition, iter is also the name of a builtin function, like print. While iter is a built-in function, it would be clearer if you referenced the __builtins__

Re: [Tutor] lists of lists: more Chutes Ladders!

On Tue, Dec 31, 2013 at 10:53 PM, Steven D'Aprano st...@pearwood.info wrote: __builtins__ with-an-s is a crappy hack that has never worked correctly and has caused more confusion than help: https://mail.python.org/pipermail/python-3000/2007-March/006170.html Restricted mode in CPython has

Re: [Tutor] lists of lists: more Chutes Ladders!

On 01/01/2014 07:13 AM, eryksun wrote: I'm afraid I've lost the context, and don't understand why this is important. It's true that not all built-in objects are in builtins, and not all objects in builtins are built-in, but other than for pedantic correctness, why does this matter? Denis said:

[Tutor] lists of lists: more Chutes Ladders!

I resolved a problem I was having with lists, but I don't understand how! I caught my code inadvertently resetting/zeroing two lists TWICE at the invocation of the game method, and it was leading to all the (gamechutes gameladders) lists returned by that method being zeroed out except the final

Re: [Tutor] lists of lists: more Chutes Ladders!

Never mind, I figured out that the slice assignment is emptying the previous lists, before the .reset() statements are creating new lists that I then populate and pass on. It makes sense. On Tue, Dec 31, 2013 at 12:59 AM, Keith Winston keithw...@gmail.com wrote: I resolved a problem I was

[Tutor] Lists and While Loops

So I have to write a program that reads a message from the user and prints a new message that contains all the words from the original message but in the same order without repeating any of them unless they show up more than once in the original message. What I have thus far looks like this:

Re: [Tutor] Lists and While Loops

I can't figure out 1) How to remove y from the list and continue the loop; when I use .remove etc. it runs once then give me the error that y is not in the list. I imagine the answer is quite simple I'm just getting really frustrated trying to get this done any advice is appreciated. This

Re: [Tutor] Lists and While Loops

On 3/28/2012 11:53 AM Ricky Brown said... So I have to write a program that reads a message from the user and prints a new message ok -- that contains all the words from the original message but in the same order without repeating any of them unless they show up more than once in the

Re: [Tutor] Lists and While Loops

On Wed, Mar 28, 2012 at 2:53 PM, Ricky Brown rjbr...@gmail.com wrote: So I have to write a program that reads a message from the user and prints a new message that contains all the words from the original message but in the same order without repeating any of them unless they show up more than

Re: [Tutor] Lists and While Loops

On 28/03/2012 21:15, Emile van Sebille wrote: On 3/28/2012 11:53 AM Ricky Brown said... So I have to write a program that reads a message from the user and prints a new message ok -- that contains all the words from the original message but in the same order without repeating any of them

Re: [Tutor] Lists and While Loops

Thank you all for your input it was extremely helpful. Robert you were spot on with what I was trying to do, I tried to implement the random.sample earlier but I couldn't see to get it too work -- running smoothly now. Sorry for the trouble :) On Wed, Mar 28, 2012 at 4:14 PM, Robert Sjoblom

[Tutor] Lists/raw_input

I want to prompt the user only once to enter 5 numbers. I then want to create a list out of those five numbers. How can I do that? I know how to do it if I prompt the user 5 different times, but I only want to prompt the user once. Thanks. -- Michael

Re: [Tutor] Lists/raw_input

Hi Michael, I bet there is a better way (which I would like to see), but here is what I have come up with for my own uses. ints = [] u_in = False while u_in == False: try: u_input = raw_input('please enter 5 integers, space separated\n ') for n in

Re: [Tutor] Lists/raw_input

On 2012/02/07 07:40 AM, Michael Lewis wrote: I want to prompt the user only once to enter 5 numbers. I then want to create a list out of those five numbers. How can I do that? I know how to do it if I prompt the user 5 different times, but I only want to prompt the user once. Thanks. --

Re: [Tutor] Lists

To: tutor@python.org Subject: Re: [Tutor] Lists Dnia 11-06-2011 o 17:51:03 Piotr Kamińskipiotr-...@o2.pl napisał(a): Dnia 11-06-2011 o 17:30:50 Alan Gauldalan.ga...@btinternet.com napisał(a): Piotr Kamińskipiotr-...@o2.pl wrote This is a *technical* list, as I understand it, solely dedicated

Re: [Tutor] Lists

Dnia 11-06-2011 o 17:51:03 Piotr Kamiński piotr-...@o2.pl napisał(a): Dnia 11-06-2011 o 17:30:50 Alan Gauld alan.ga...@btinternet.com napisał(a): Piotr Kamiński piotr-...@o2.pl wrote This is a *technical* list, as I understand it, solely dedicated to ... Since this seems to be

Re: [Tutor] Lists

Message- From: tutor-bounces+bermanrl=cfl.rr@python.org [mailto:tutor- bounces+bermanrl=cfl.rr@python.org] On Behalf Of Piotr Kaminski Sent: Sunday, June 12, 2011 4:06 PM To: tutor@python.org Subject: Re: [Tutor] Lists Dnia 11-06-2011 o 17:51:03 Piotr Kamiński piotr-...@o2.pl

Re: [Tutor] Lists

Dnia 11-06-2011 o 04:34:47 Steven D'Aprano st...@pearwood.info napisał(a): Piotr Kamiński wrote: Could you please refrain from presenting your *religious* convictions in this list: the notions you believe in as well as the ones that you believe are false? This is a *technical* list, as I

Re: [Tutor] Lists

Piotr Kamiński piotr-...@o2.pl wrote This is a *technical* list, as I understand it, solely dedicated to the technical side of teaching the *Python* programming language and *programming* in general. I would like to keep it this way ... Since this seems to be something we can all agree on

Re: [Tutor] Lists

Hello, I've been told that some of you, or everybody got my e-mail four times. I'm sorry for the inconvenience. It seems there was a temporary failure of my piotr-kam[at]o2.pl mail account. I tried to send the e-mail three times, and each time got the Undelivered Mail Returned to Sender

Re: [Tutor] Lists

Dnia 11-06-2011 o 17:30:50 Alan Gauld alan.ga...@btinternet.com napisał(a): Piotr Kamiński piotr-...@o2.pl wrote This is a *technical* list, as I understand it, solely dedicated to the technical side of teaching the *Python* programming language and *programming* in general. I would like

Re: [Tutor] Lists

On 06/11/2011 06:51 PM, Piotr Kamiński wrote: Dnia 11-06-2011 o 17:30:50 Alan Gauld alan.ga...@btinternet.com napisał(a): Piotr Kamiński piotr-...@o2.pl wrote This is a *technical* list, as I understand it, solely dedicated to the technical side of teaching the *Python* programming

Re: [Tutor] Lists

Alan: Thank you for all you do. I always look for your posts! You have helped me immensely with Python and I appreciate it! Jeff --- Jeff Johnson j...@dcsoftware.com Jeff --- Jeff Johnson j...@san-dc.com (623) 582-0323 www.san-dc.com On 06/11/2011 08:30

[Tutor] Lists

I'm stuck on two problems from the Absolute Beginners book. The first is simple. I am trying to print all the words in the list in random order without repeats, but it always shows None for some reason. #Program prints list of words in random order with no repeats import random #List of

Re: [Tutor] Lists

Vincent Balmori wrote: I'm stuck on two problems from the Absolute Beginners book. The first is simple. I am trying to print all the words in the list in random order without repeats, but it always shows None for some reason. #Program prints list of words in random order with no repeats

Re: [Tutor] Lists

Dnia 10-06-2011 o 12:25:34 Steven D'Aprano st...@pearwood.info napisał(a): Vincent Balmori wrote: I'm stuck on two problems from the Absolute Beginners book. The first is simple. I am trying to print all the words in the list in random order without repeats, but it always shows None for

Re: [Tutor] Lists

On 06/10/2011 03:12 PM, Piotr Kamiński wrote: Could you please refrain from presenting your *religious* convictions in this list: the notions you believe in as well as the ones that you believe are false? This is a *technical* list, as I understand it, solely dedicated to the technical side

Re: [Tutor] Lists

Dnia 10-06-2011 o 22:00:46 Corey Richardson kb1...@aim.com napisał(a): On 06/10/2011 03:12 PM, Piotr Kamiński wrote: Could you please refrain from presenting your *religious* convictions in this list: the notions you believe in as well as the ones that you believe are false? This is a

Re: [Tutor] Lists

Piotr Kamiński wrote: Could you please refrain from presenting your *religious* convictions in this list: the notions you believe in as well as the ones that you believe are false? This is a *technical* list, as I understand it, solely dedicated to the technical side of teaching the *Python*

Re: [Tutor] Lists

Vincent, you should also try to avoid naming your lists a 'list'. There's a couple dozen words in Python that are reserved 'for system use': import keyword print(keyword.kwlist) ['False', 'None', 'True', 'and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else',

[Tutor] lists, arrays and saving data

Hi Gurus I just wrote my first little python program; so yes I'm very new to all this. The goal in the end is to have a program that shows how the sun moves from the point of view of a given location (i.e. solar paths added to some sort of stereographic diagram). My very first program

Re: [Tutor] lists, arrays and saving data

On 11/21/2010 5:12 AM Chris Begert said... Hi Gurus I just wrote my first little python program; so yes I'm very new to all this. The goal in the end is to have a program that shows how the sun moves from the point of view of a given location (i.e. solar paths added to some sort of

Re: [Tutor] lists, arrays and saving data

Chris Begert c...@gmx.de wrote How do I store a years worth of data of angles in an array / list / whatever is most useful when using Python? The choice of data structure usually depends on how you plan on accessing/using it. So we can't advise until we know more about what you plan on doing

Re: [Tutor] lists, arrays and saving data

On 11/21/2010 8:12 AM, Chris Begert wrote: Hi Gurus I just wrote my first little python program; so yes I'm very new to all this. The goal in the end is to have a program that shows how the sun moves from the point of view of a given location (i.e. solar paths added to some sort of

Re: [Tutor] Lists in a file

Thanks for all the suggestions.  I will have to try this. --- On Sun, 26/4/09, Kent Johnson ken...@tds.net wrote: From: Kent Johnson ken...@tds.net Subject: Re: [Tutor] Lists in a file To: Robert Berman berma...@cfl.rr.com Cc: David Holland davholla2...@yahoo.co.uk, tutor python tutor

[Tutor] Lists in a file

Hi, I am trying to create a program where I open a file full of lists and process them. However when the program does not recognize the lists as lists. Here is the relevant code :- def open_filedef():     text_file =open (voteinp.txt,r)     lines = text_file.readlines()             for line in

Re: [Tutor] Lists in a file

David, You are processing a text file. It is your job to treat it as a file comprised of lists. I think what you are saying is that each line in the text file is a list. In that case for line in fileobject: listline = list(line) Now, listline is a list of the text items in line. Hope

Re: [Tutor] Lists in a file

On Sun, Apr 26, 2009 at 2:18 PM, Robert Berman berma...@cfl.rr.com wrote: David, You are processing a text file. It is your job to treat it as a file comprised of lists. I think what you are saying is that each line in the text file is a list. In that case for line in fileobject:  

Re: [Tutor] Lists in a file

Le Sun, 26 Apr 2009 18:03:41 + (GMT), David Holland davholla2...@yahoo.co.uk s'exprima ainsi: Hi, I am trying to create a program where I open a file full of lists and process them. However when the program does not recognize the lists as lists. Here is the relevant code :- def

[Tutor] lists

Hi What am I doing wrong media_list = ['upper_b.wav', 'upper_a.wav'] print '%s' % (for x in media_list) File stdin, line 1 print '%s' % (for x in media_list) ^ SyntaxError: invalid syntax print '%s' % (x for x in media_list) generator object at 0x532210 I want to

Re: [Tutor] lists

On Tue, Jan 20, 2009 at 11:30 AM, Norman Khine nor...@khine.net wrote: Hi What am I doing wrong media_list = ['upper_b.wav', 'upper_a.wav'] print '%s' % (for x in media_list) File stdin, line 1 print '%s' % (for x in media_list) ^ SyntaxError: invalid syntax print

Re: [Tutor] lists

hi! On Tue, Jan 20, 2009 at 10:30 PM, Kent Johnson ken...@tds.net wrote: On Tue, Jan 20, 2009 at 11:30 AM, Norman Khine nor...@khine.net wrote: Hi What am I doing wrong media_list = ['upper_b.wav', 'upper_a.wav'] print '%s' % (for x in media_list) File stdin, line 1 print '%s' % (for

  1   2   >