Re: [Tutor] Mutable data type in python

> Here is my modified version which I think works as you want: > > def findMinDepthPath(n): > if n <= 0: raise ValueError > elif n==1: > return 0 > elif n==2 or n==3: > return 1 > else: > d1 = findMinDepthPath(n-1)+1 > d2 = d3 = (d1+1) # initialize

Re: [Tutor] Mutable data type in python

On Sat, Oct 3, 2015 at 11:55 AM, Alan Gauld <alan.ga...@btinternet.com> wrote: > On 03/10/15 19:10, C Smith wrote: >>> >>> Here is my modified version which I think works as you want: >>> >>> def findMinDepthPath(n): >>> if n <= 0: r

Re: [Tutor] Python type confusion?

On Mon, Sep 28, 2015 at 1:27 PM, Ken Hammer wrote: > A simple "type" problem? > > The following code works as a py file with the XX'd lines replacing the two > later "raw_input" lines. > Why do the "raw_input" lines yield a TypeError: 'str' object is not callable? > Same

Re: [Tutor] Python type confusion?

On Mon, Sep 28, 2015 at 4:13 PM, C Smith <illusiontechniq...@gmail.com> wrote: > On Mon, Sep 28, 2015 at 1:27 PM, Ken Hammer <kfh...@earthlink.net> wrote: >> A simple "type" problem? >> >> The following code works as a py file with the XX'd lines re

Re: [Tutor] Help

Check this guy's youtube channel. He has very basic examples. His username is thenewboston On Wed, Sep 17, 2014 at 4:36 PM, Art Pelletier artp...@gmail.com wrote: I am a beginner with pythons programming I would like to see if their is a site that has samples programs that I can practice

Re: [Tutor] Using subprocess on a series of files with spaces

Finney ben+pyt...@benfinney.id.au wrote: Peter Otten __pete...@web.de writes: C Smith wrote: Nice, these are useful tools. I have been building something with just basic stuff and avoiding learning any libraries. If I wanted to get some insight on a larger program that is about 1000 lines

Re: [Tutor] Using subprocess on a series of files with spaces

solved your problem, unfortunately my emails are coming in slowly and out of order, but I have a suggestion: On Thu, Jul 31, 2014 at 03:53:48PM -0400, C Smith wrote: I am on OSX, which needs to escape spaces in filenames with a backslash. Same as any other Unix, or Linux, or, indeed, Windows

[Tutor] Using subprocess on a series of files with spaces

I am on OSX, which needs to escape spaces in filenames with a backslash. There are multiple files within one directory that all have the same structure, one or more characters with zero or more spaces in the filename, like this: 3 Song Title XYZ.flac. I want to use Python to call ffmpeg to convert

Re: [Tutor] Using subprocess on a series of files with spaces

. It's well documented, check Google. I guess you mean that the ability to change multiple files with ffmpeg is possible. I hadn't considered that but I would rather do it with Python, just for the practice. On Thu, Jul 31, 2014 at 4:36 PM, Emile em...@salesinq.com wrote: On 7/31/2014 1:19 PM, C

Re: [Tutor] Using subprocess on a series of files with spaces

backslashes or something with strings? On Thu, Jul 31, 2014 at 5:53 PM, C Smith illusiontechniq...@gmail.com wrote: Change: subprocess.call(['ffmpeg', '-i', filename, str(track)+'.mp3']) to: subprocess.call(['ffmpeg', '-i', '%s' % filename, str(track)+'.mp3']) I still get the same errors, the filenames

Re: [Tutor] Using subprocess on a series of files with spaces

Okay I messed up with slash instead of backslash, so the re.sub() works, but I am still curious about the previous question. On Thu, Jul 31, 2014 at 6:14 PM, C Smith illusiontechniq...@gmail.com wrote: Even when I am using: re.sub('/s', '\\/s', filename) I am still getting the same output

Re: [Tutor] Using subprocess on a series of files with spaces

. So, I am still wondering about that too. On Thu, Jul 31, 2014 at 6:20 PM, C Smith illusiontechniq...@gmail.com wrote: Okay I messed up with slash instead of backslash, so the re.sub() works, but I am still curious about the previous question. On Thu, Jul 31, 2014 at 6:14 PM, C Smith

Re: [Tutor] Using subprocess on a series of files with spaces

, but I have a suggestion: On Thu, Jul 31, 2014 at 03:53:48PM -0400, C Smith wrote: I am on OSX, which needs to escape spaces in filenames with a backslash. Same as any other Unix, or Linux, or, indeed, Windows. There are multiple files within one directory that all have the same structure

Re: [Tutor] Using subprocess on a series of files with spaces

woops, I see it pathname != filename On Thu, Jul 31, 2014 at 6:55 PM, C Smith illusiontechniq...@gmail.com wrote: for track, filename in enumerate(os.listdir(directory), 1): It seems kinda counter-intuitive to have track then filename as variables, but enumerate looks like it gets passed

Re: [Tutor] Using subprocess on a series of files with spaces

Works now, thanks! On Thu, Jul 31, 2014 at 6:57 PM, C Smith illusiontechniq...@gmail.com wrote: woops, I see it pathname != filename On Thu, Jul 31, 2014 at 6:55 PM, C Smith illusiontechniq...@gmail.com wrote: for track, filename in enumerate(os.listdir(directory), 1): It seems kinda counter

Re: [Tutor] Using subprocess on a series of files with spaces

Huh, that is quite an annoyance about changing the order though. Any ideas about that? I will look into it further in the meantime... On Thu, Jul 31, 2014 at 6:57 PM, C Smith illusiontechniq...@gmail.com wrote: Works now, thanks! On Thu, Jul 31, 2014 at 6:57 PM, C Smith illusiontechniq

Re: [Tutor] Using subprocess on a series of files with spaces

thanks, got it import os, subprocess, re directory = 'abs/path' for track, filename in enumerate(os.listdir(directory), 1): pathname = os.path.join(directory, filename) subprocess.call(['ffmpeg', '-i', pathname, filename+str(track)+'.mp3']) On Thu, Jul 31, 2014 at 7:02 PM, C Smith

Re: [Tutor] Using subprocess on a series of files with spaces

or more accurately import os, subprocess, re directory = '/abs/path' for track, filename in enumerate(os.listdir(directory), 1): pathname = os.path.join(directory, filename) subprocess.call(['ffmpeg', '-i', pathname, filename[:-5]+'.mp3']) On Thu, Jul 31, 2014 at 7:13 PM, C Smith

Re: [Tutor] Using subprocess on a series of files with spaces

Nice, these are useful tools. I have been building something with just basic stuff and avoiding learning any libraries. If I wanted to get some insight on a larger program that is about 1000 lines, would that be doable here? On Thu, Jul 31, 2014 at 7:37 PM, Peter Otten __pete...@web.de wrote: C

Re: [Tutor] Why is Quick Search at docs.Python.org so useless?

I agree very much. I feel like I might have a learning disability when I try to reference the official Python docs for something that seems like it should be a very common task. On Sat, Jul 5, 2014 at 1:31 PM, Deb Wyatt codemon...@inbox.com wrote: I am betting that a big reason newbies don't go

Re: [Tutor] What are your favourite unofficial resources

Learning Python Design Patterns, by Gennadiy Zlobin Let us know when your book is done! On Mon, Jun 30, 2014 at 7:05 AM, Bob Williams li...@barrowhillfarm.org.uk wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 29/06/14 23:41, Alan Gauld wrote: I'm looking for tips for an appendix to

Re: [Tutor] Doubts about installing python3.1 in squeeze

Sorry, typing is hard. *You will need to use virtualenv On Thu, May 22, 2014 at 2:40 PM, C Smith illusiontechniq...@gmail.com wrote: You can't use apt-get or similar to install 3.1. You will need to virtualenv. On Thu, May 22, 2014 at 12:22 PM, Alex Kleider aklei...@sonic.net wrote: On 2014

Re: [Tutor] Doubts about installing python3.1 in squeeze

You can't use apt-get or similar to install 3.1. You will need to virtualenv. On Thu, May 22, 2014 at 12:22 PM, Alex Kleider aklei...@sonic.net wrote: On 2014-05-22 06:17, Markos wrote: Hi, I'm learning Python and I'm using Debian 6.0 (squeeze) The installed version is 2.6.6. (python -V)

Re: [Tutor] While truth

You can test out a condition like this in IDLE like so: while 6: print yes its true break while 0: print yes its true break while -1: print yes its true break emptyList = [] while emtpyList: print yes its true break This way you don't have to deal with an

Re: [Tutor] While truth

Of course that isn't very useful code. I thought it might be a useful quick test for someone learning how while loops treat different values. On Tue, May 20, 2014 at 2:46 PM, Danny Yoo d...@hashcollision.org wrote: On Tue, May 20, 2014 at 11:44 AM, C Smith illusiontechniq...@gmail.com wrote

Re: [Tutor] for the error about 'import site' failed; use -v for traceback

That looks pretty normal. I don't see any errors. On Wed, May 14, 2014 at 5:42 AM, Tao Zhu zxl_...@126.com wrote: Hi everyone, when I use python, the problem occured. when I used the command python -v, the results are listed as follows. could you tell me what wrong? $ python -v # installing

Re: [Tutor] for the error about 'import site' failed; use -v for traceback

What are you trying to do? On Wed, May 14, 2014 at 12:24 PM, C Smith illusiontechniq...@gmail.com wrote: That looks pretty normal. I don't see any errors. On Wed, May 14, 2014 at 5:42 AM, Tao Zhu zxl_...@126.com wrote: Hi everyone, when I use python, the problem occured. when I used

Re: [Tutor] Translator - multiple choice answer

This might be useful for reading values from a text value into a dictionary: https://stackoverflow.com/questions/17775273/how-to-read-and-store-values-from-a-text-file-into-a-dictionary-python On Wed, May 14, 2014 at 7:00 PM, Danny Yoo d...@hashcollision.org wrote: Program read TXT file

Re: [Tutor] Real world experience

Thanks to everyone. practice. That programming doesn't have to be a solitary thing needs to be strongly emphasized, because the media likes to exaggerate, Yes, This can't be stressed too much. Industrial coding is a team activity not a solo process. This is particularly good advice for me.

Re: [Tutor] Real world experience

Freeside is more makers. I haven't gone but have known people that have. You might find some arduino supposedly, but not much coding otherwise and you have to pay membership fees. It is more social than technical, I think. And your car will probably be broken into. I will check out the

Re: [Tutor] Real world experience

I think that is going to be my new wallpaper. On Mon, May 12, 2014 at 8:25 PM, Martin A. Brown mar...@linux-ip.net wrote: Hello, 10 Pick one favorite specific topic, any topic (XML parsing; Unix process handling; databases). The topic matters for you. Learn it deeply. Keep

Re: [Tutor] Help with Python

Hey Glen, include the error you are getting. It will make answering your question easier. How are you running this program, in an IDE? On Sat, May 10, 2014 at 11:16 PM, Glen Chan gchan...@msn.com wrote: Hello, I am a student trying to figure out Python. I am getting errors that I don't know how

[Tutor] Real world experience

I have never known anyone that works in this industry. I got one job transforming xml (should have used xslt, ended up using sed and python regex scripts) where the guy asked me how much I wanted and I threw 200 bucks out there because I could get a room for two weeks at that cost. He just laughed

Re: [Tutor] Real world experience

a career in IT, you need to finish high school. You would be wise to get a degree. My $0.02. Tim On Sun, May 11, 2014 at 7:12 PM, C Smith illusiontechniq...@gmail.com wrote: I have never known anyone that works in this industry. I got one job transforming xml (should have used xslt

Re: [Tutor] How inefficient is this code?

://wiki.python.org/moin/Generators On Wed, May 7, 2014 at 7:27 PM, C Smith illusiontechniq...@gmail.com wrote: A topic came up on slashdot concerning intermediate programming, where the poster expressed the feeling that the easy stuff is too easy and the hard stuff is too hard. Someone did

Re: [Tutor] How inefficient is this code?

I guess intuiting efficiency doesn't work in Python because it is such high-level? Or is there much more going on there? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] Stephen Mik-Novice Python Programmer(Version 3.4.0)Can't get help using Dictionaries, Lists to 'Hangman Game Problem

using Dictionaries,Lists.embedded while lists,for loops: Thank you,. C. Smith for responding to my help plea on Python-Tutor.org. One version of the Hang Man problem is listed in the textbook,but it doesn't use Dictionaries,Lists,embedded while lists;so I am fairly flummoxed as to what is needed

Re: [Tutor] Stephen Mik-Novice Python Programmer(Version 3.4.0)Can't get help using Dictionaries, Lists to 'Hangman Game Problem

Hey, you will want to include some code to show your progress so far. Can you write a basic program and then work the requirements into it? Do you have some idea of where to start? Are you supposed to modify a completed version of hangman that is in your text, or come up with an original 'hangman'

Re: [Tutor] Alice_in_wonderland Question

ordered_keys = word_count.keys() sorted(ordered_keys) sorted() does not modify the list, but returns a sorted version of the list for me on Python 2.7 my_sorted_list = sorted(ordered_keys) This will alphabetize all of the words, regardless of frequency. print (All the words and their frequency

Re: [Tutor] converting strings to float: strange case

.split() will split things based on whitespace or newlines. Do you know that your file is only going to contain things that should convert to floats? If you post your entire code, the error you have included will be more helpful as it points to a certain line. The last line in your code has (stri)

Re: [Tutor] Stephen Mik-Almost Brand New to Python 3.4.0-Guess My Number program is syntactically correct but will not run as expected

That is definitely more useful information in answering your questions. Whenever you see the error you are getting: NameError: name 'smv_guessNumber' is not defined That means you are using a variable, in this case 'smv_guessNumber', that has not been created yet. The reason this is happening

Re: [Tutor] Stephen Mik-Almost Brand New to Python 3.4.0-Guess My Number program is syntactically correct but will not run as expected

I should probably clarify that this list is mainly for python2.7, correct me if I am wrong. On Mon, Apr 28, 2014 at 1:49 PM, C Smith illusiontechniq...@gmail.comwrote: That is definitely more useful information in answering your questions. Whenever you see the error you are getting

Re: [Tutor] Stephen Mik-Almost Brand New to Python 3.4.0-Guess My Number program is syntactically correct but will not run as expected

The reason this is happening here is you need to import sys. I don't know why you would think importing sys would fix this. docs say it accepts from sys.stdin On Mon, Apr 28, 2014 at 1:55 PM, Philip Dexter philip.dex...@gmail.comwrote: On Mon, 28 Apr 2014, C Smith wrote: I

Re: [Tutor] Stephen Mik-Almost Brand New to Python 3.4.0-Guess My Number program is syntactically correct but will not run as expected

, C Smith illusiontechniq...@gmail.comwrote: The reason this is happening here is you need to import sys. I don't know why you would think importing sys would fix this. docs say it accepts from sys.stdin On Mon, Apr 28, 2014 at 1:55 PM, Philip Dexter philip.dex

Re: [Tutor] Help needed

Just glancing at your work, I see you have curly braces around what looks like it should be a list. If you are concerned with the order of your output, dictionaries do not have a concept of order. On Sat, Apr 26, 2014 at 3:16 PM, Suhana Vidyarthi suhanavidyar...@gmail.com wrote: Hi Danny,

Re: [Tutor] Help needed

err, set also is unordered. I can see you are using set for a reason, but has no concept of order. On Sat, Apr 26, 2014 at 3:20 PM, C Smith illusiontechniq...@gmail.comwrote: Just glancing at your work, I see you have curly braces around what looks like it should be a list. If you

Re: [Tutor] Help needed

incorrect and if there is some other function that can be used to display the output in desired order but don't see it possible thats why was wondering if any of you Python gurus have any inputs for me :-) On Sat, Apr 26, 2014 at 12:36 PM, C Smith illusiontechniq...@gmail.comwrote: err, set

Re: [Tutor] Difficulty in getting logged on to python.org; want to resubscribe at the beginner level; finding While Loops in Python 3.4.0 to be extremely picky

You can get python 3.4 to work on your mac, but it has 2.5 or 2.4 which the OS uses and things can get very messed up if you don't know what you are doing. You should use virtualbox to run virtual OS's on your mac without messing up your main computer. You should probably describe what kind of

Re: [Tutor] What can I do if I'm banned from a website??

how could someone know enough to write their own web-scraping program and NOT know that this is not about python or how to get around this problem? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options:

Re: [Tutor] Filename match on file extensions

Would this be a time when regex is necessary? Maybe: \b[^.]*quarantine[^.]*\.[a-zA-Z]*\b ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] html checker

You will not find much help in getting a program to 'just work' regardless of your own experience. My advice would be to try and run small parts at a time to pinpoint where the problem is. Are you opening and reading the file properly? Are you iterating over the read file properly? Does your html

Re: [Tutor] html checker

yourlisthere.pop() will return the last element in the list and change the list so it no longer contains the element. yourlisthere.push(x) will add x to the end of the list. Works on more than just lists ___ Tutor maillist - Tutor@python.org To

Re: [Tutor] HELP!

Is the only problem that your code is giving unexpected results, or that it doesnt run or what? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] python help?

It is hard to see things like images and attachments. I think purely html is preferred, but i would have to look over 'the list rules' again. You should look into dictionaries as the structure to hold your info. ___ Tutor maillist - Tutor@python.org To

Re: [Tutor] Running a script in the background

You are thinking of is what you want ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor

[Tutor] help with a recursive function

hi list, i understand the general idea of recursion and if I am following well written code I can understand how it works, but when I try to write it for myself I get a bit confused with the flow. I was trying to turn an ackerman function into python code for practice and I tried writing it like

[Tutor] making lists of prime numbers

hi list, i am trying the MIT opencourseware assignments. one was to find the 1000th prime. since this isn't actually my homework, I modified the solution as I would like to collect lists of primes and non-primes up to N, also some log() ratio to one comparison. here is what I came up with on

[Tutor] how obsolete is 2.2?

I found a book at the local library that covers python but it's 2.2. I already have been using 2.7 for basic stuff and would like to know if it's worth my time to read this book. Are there any glaring differences that would be easy to point out, or is it too convoluted? Also, am I correct in

[Tutor] how obsolete is 2.2, and a pickle question

I found a book at the local library that covers python but it's 2.2. I already have been using 2.7 for basic stuff and would like to know if it's worth my time to read this book. Are there any glaring differences that would be easy to point out, or is it too convoluted? Also, am I correct in

Re: [Tutor] Sorting of files based on filesize

--request for a method of sorting disk files based on size so as to fill backup disks-- You may want to check out the karp.py routine posted at http://aspn.activestate.com/ASPN/Mail/Message/python-Tutor/749797 Right now it is coded to split N numbers into 2 groups that have sums as nearly

[Tutor] flatten

After posting the suggestion about splitting a string that contained a quoted string, I looked back at my (at least I think its mine) flatten routine and didnt see anything like it at ASPN. Before I would post it there, does anyone see any problems with this non-recursive approach? I know

Re: [Tutor] one line code

From: Alan Gauld [EMAIL PROTECTED] With other words I'd like to tell Python: Convert into a float if possible, otherwise append anyway. [ (type(x) == type(5) and float(x) or x) for x in mylist ] This is a perfect opportunity to give the reminder that the conversion functions are also types that

[Tutor] Re: If elif not working in comparison

gerardo arnaez wrote: On Mon, 28 Mar 2005 09:27:11 -0500, orbitz orbitz at drorbitz.ath.cx wrote: Floats are inherintly inprecise. So if thigns arn't working like you expect don't be surprised if 0.15, 0.12, and 0.1 are closer to the same number than you think. Are you telling me

Re: [Tutor] Math Question

On Tuesday, Mar 22, 2005, at 15:34 America/Chicago, [EMAIL PROTECTED] wrote: When I adjust coumadin doses I normal have to use whole or half pills of the medicien the patient already has. Fer Instance, if a pt takes 5mg of coumadin a day, that's 35mg of coumadin week and suppose I do a test

Re: [Tutor] primes - sieve of odds

On Wednesday, Mar 23, 2005, at 04:00 America/Chicago, [EMAIL PROTECTED] wrote: Now it would be fine to have an *equally fast* infinite prime number generator. Has anybody any suggestions? I think when you add the condition of it being an infinite generator, you are changing the rules and can't

Re: [Tutor] Looking for a Pythonic way to pass variable

On Tuesday, Mar 22, 2005, at 05:01 America/Chicago, [EMAIL PROTECTED] wrote: I met a similar question. what if one has L = [[1,2],[3,4]], K = [100, 200] How to 'zip' a List like [[1,2,100], [3,4,200]]? I would do something like: ### for i in range(len(L)): L[i].append(K[i]) ### /c

Re: [Tutor] primes - sieve of odds

Hi Gregor, I had done the same thing. I also noted that assigning (or inserting) an element into a list is faster than creating a new list: l.insert(0,2) is faster than l = [2]+l. ### def sieve (maximum): if maximum 2: return [] limit = int(maximum**0.5) nums =

Re: [Tutor] primes

On Thursday, Mar 17, 2005, at 17:49 America/Chicago, [EMAIL PROTECTED] wrote: On my system, it took 415 seconds to generate a list of primes 50,000 using range, but only 386 seconds if I use the same code, but with xrange instead. If you only calculate y up to sqrt(x) you will see a dramatic

Re: [Tutor] help

On Sunday, Mar 13, 2005, at 05:01 America/Chicago, [EMAIL PROTECTED] wrote: if this is not a program please teach me what is a program and what i need to know to write them and if this is a program teach me how to write better programs i can use outside of the python shell... OK, how about this

Re: [Tutor] working with new classes

Thanks to Sean and Kent for replies. I found a site that provided some good examples, too, at http://www.cafepy.com/articles/python_attributes_and_methods/ ch03s02.html Here's a blurb from the title page: wep page excerpt Shalabh Chaturvedi Copyright © 2004 Shalabh Chaturvedi This book

[Tutor] working with new classes

Hello, After learning about the new class behavior, I am trying to implement a circular type list where, for example, you can compare the nth value to the (n+1)th value without worrying about going past the end of the list. (An old approach might be to create a function that converts a given