Re: [Tutor] MP3Info class usage
Okay, I've moved over to eyeD3.py... fif nothing else, the documentation for it's usage is far superior. However, I can't get anything to run. The help gives examples of some simple tasks, but as soon as I 'import eyeD3', not even calling any functions within it, I start getting errors such as: In eyeD3.py, the 'from eyeD3.tag import *;' line (and similar) didn't work until I removed the 'eyeD3.' part and just imported 'tag'. Then in tag.py, some of the class defs complained about undefined variables, for example 'def link(self, f, v = ID3_ANY_VERSION)' needed to have quotes around 'ID3_ANY_VERSION'. Now these issues are addressed I have an error in mp3.py, 'class EyeD3Driver(eyeD3.utils.FileHandler) NameError: name 'eyeD3' is not defined. I'm baffled that I'm having to jump through so many hoops because I imported eyeD3... is this typical? What have I done wrong? Cheers, Gareth Todd Zullinger wrote: I'd recommend eyeD3¹ and/or mutagen² for tag reading. Both are pretty easy to use. ¹ http://eyed3.nicfit.net/ ² http://code.google.com/p/quodlibet/wiki/Development/Mutagen -- View this message in context: http://www.nabble.com/MP3Info-class-usage-tp20934673p20980334.html Sent from the Python - tutor mailing list archive at Nabble.com. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Having Issues with CMD and the 'python' command
cmd has _nothing_ to do with Python. --JamesMills -- -- Problems are solved by method On Mon, Dec 15, 2008 at 10:51 PM, Lamonte Harris pyth0nc0...@gmail.com wrote: Every time I start cmd on windows it requires me to set path=%path%;C:\python26 why? I'm getting annoyed... -- http://mail.python.org/mailman/listinfo/python-list ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Having Issues with CMD and the 'python' command
On Mon, 15 Dec 2008 at 23:01, James Mills wrote: On Mon, Dec 15, 2008 at 10:51 PM, Lamonte Harris pyth0nc0...@gmail.com wrote: Every time I start cmd on windows it requires me to set path=%path%;C:\python26 why? I'm getting annoyed... cmd has _nothing_ to do with Python. (Top posting corrected.) But the answer is that you need to update your PATH string at the system level. You do that in Control Panel/System/Advanced/Environment variables (it's a button on the advanced screen, which is something that confused me the first time I went looking for it). ObPython: you know, it occurs to me that Windows follows exactly the opposite philosophy from Python when it comes to hierarchy. Python's Zen is shallow is better than deep, whereas Windows' philosophy is deep is better than shallow. Every release of Windows seems to bury the things one needs to do to administer the system deeper and deeper inside a nested set of windows...and every time I touch Windows I am reminded how sensible the Python Zen is :) --RDM ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python Lib Files
On Sun, Dec 14, 2008 at 9:49 AM, btk...@email.unc.edu wrote: Hello everyone, I discovered yesterday that the Python package has a number of built in example scripts in the /lib directory. Perhaps this is common knowledge but I did not know about it. I can't seem to find any kind of guide to the files, though. Is there a readme somewhere that someone can point me to, or perhaps documentation for the files online? I cant find anything on the python.org site. This is for version 2.5. Those are not sample scripts, they are the standard library. There is extensive documentation, for example http://docs.python.org/library/ or for Python 2.5 see http://www.python.org/doc/2.5.2/lib/lib.html Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python Lib Files
Kent Johnson ken...@tds.net wrote I discovered yesterday that the Python package has a number of built in example scripts in the /lib directory. Those are not sample scripts, they are the standard library. There is extensive documentation, for example However there are some sample scripts in the Tools directory... For example a regex checker and reindentation tool. HTH, Alan G. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Having Issues with CMD and the 'python' command
bob gailer bgai...@gmail.com wrote Try this: Start-Settings-Control Panel-System-Advanced-Environment Variables Highlight PATH under System Variables Click Edit. Add ;C:\python26 And notice that Bob said ADD - DO NOT REPLACE the existing setting or you will likely break stuff and its not easy to fix it afterwards unless you have a full backup to hand!! Alan G. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Ask a class for it's methods
On Fri, Dec 12, 2008 at 6:06 PM, Shrutarshi Basu technorapt...@gmail.com wrote: Is there a way to ask an object for a list of it's methods (with argument requirements if possible)? Take a look at the inspect module. If it does not directly give you what you need, look at the source - it looks at function attributes that you can directly access. Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Having Issues with CMD and the 'python' command
Every time I start cmd on windows it requires me to set path=%path%;C:\python26 why? I'm getting annoyed... ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Having Issues with CMD and the 'python' command
Lamonte Harris wrote: Every time I start cmd on windows it requires me to "set path=%path%;C:\python26" why? I'm getting annoyed... I have never started cmd and have it require anything. I guess what you are really asking is "how to permanenly set an environment variable". In this case so you can launch Python by just typing python at the cmd prompt? Are we on the same page so far? And realize this is not a Python question but rather a Windows question? Try this: Start-Settings-Control Panel-System-Advanced-Environment Variables Highlight PATH under System Variables Click Edit. Add ;C:\python26 -- Bob Gailer Chapel Hill NC 919-636-4239 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Having Issues with CMD and the 'python' command
On Mon, Dec 15, 2008 at 8:13 AM, rdmur...@bitdance.com wrote: On Mon, 15 Dec 2008 at 23:01, James Mills wrote: On Mon, Dec 15, 2008 at 10:51 PM, Lamonte Harris pyth0nc0...@gmail.com wrote: Every time I start cmd on windows it requires me to set path=%path%;C:\python26 why? I'm getting annoyed... cmd has _nothing_ to do with Python. (Top posting corrected.) But the answer is that you need to update your PATH string at the system level. You do that in Control Panel/System/Advanced/Environment variables (it's a button on the advanced screen, which is something that confused me the first time I went looking for it). ObPython: you know, it occurs to me that Windows follows exactly the opposite philosophy from Python when it comes to hierarchy. Python's Zen is shallow is better than deep, whereas Windows' philosophy is deep is better than shallow. Every release of Windows seems to bury the things one needs to do to administer the system deeper and deeper inside a nested set of windows...and every time I touch Windows I am reminded how sensible the Python Zen is :) It's not a question of sensibility. It's a question of purpose. The Zen is the philosophy of a language that tries to be easy to learn and easy to use. Python is used by programmers who want to experiment with it, but who usually know enough not to os.system(rm -r /) or anything similar. Windows, on the other hand, wants to hide everything that can potentially ruin the system as deep as possible so that many of the idiots who use that system don't do stupid things like delete the registry, wipe the environment settings, turn off the Nag Screen (UAC), and other things of that nature. --RDM -- http://mail.python.org/mailman/listinfo/python-list ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Creating IDLE Shortcut
Hello, Does anyone know the proper method for re-creating the Windows XP shortcut for IDLE? I (not thinking clearly) deleted the original and now am not sure how to go about fixing the problem. I've attempted creating a shortcut and linking it to pythonw.exe with the target idle.pyw, but when loading IDLE with that shortcut all of my settings are lost and the load process is far greater. - Brad ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] need to clean a string
Hi,
I have a string that I need to extract just the sql statement.
The following is the string
\000\000\000\000\000\000\000\000.\000\000\000\\000\000\000
\000$\000\000\000\000\000(\000\000\000\000X\000\000\000\000\000,
\000\000\000\000P\000\000\000\000\000Q\000\000\000\000\000R\000
\000\000\000\000/\000\000\000� \000\000\000\000% \000\000\000
\000'\000\000\000\000+brttyp\000�\000\000\000\000*SELECT
Brttyp.ctrscode, Brttyp.cdescript, Brttyp.ctrstype, Brttyp.cstatus,
Brttyp.lreqno, Brttyp.dcreate FROM brttyp Brttyp WHERE Brttyp.ctrscode =
( ?gcKey1 )\000\000\000\000\000 AMCONNECT\000\000\000\000\000)
\000\000\000\000 \000\000\000 \000\000\000\000BR Transaction Code
File\000
How can I get rid of all the junk?
I can find the '*' with str.find('*') but I can't use find '\000' to get to
the end?
--
John Fabiani
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Re: [Tutor] need to clean a string
Am Mon, 15 Dec 2008 10:18:28 -0800
schrieb johnf jfabi...@yolo.com:
Hi,
I have a string that I need to extract just the sql
statement. The following is the string
\000\000\000\000\000\000\000\000.\000\000\000\\000\000\000
\000$\000\000\000\000\000(\000\000\000\000X\000\000\000\000\000,
\000\000\000\000P\000\000\000\000\000Q\000\000\000\000\000R\000
\000\000\000\000/\000\000\000� \000\000\000\000% \000\000\000
\000'\000\000\000\000+brttyp\000�\000\000\000\000*SELECT
Brttyp.ctrscode, Brttyp.cdescript, Brttyp.ctrstype, Brttyp.cstatus,
Brttyp.lreqno, Brttyp.dcreate FROM brttyp Brttyp WHERE
Brttyp.ctrscode = ( ?gcKey1 )\000\000\000\000\000
AMCONNECT\000\000\000\000\000) \000\000\000\000 \000\000\000
\000\000\000\000BR Transaction Code File\000
How can I get rid of all the junk?
I can find the '*' with str.find('*') but I can't use find '\000' to
get to the end?
str.find has an optional second parameter specifying the start where to
search:
Given the above string as str, you can do:
start_pos = str.find('*')
sql = None
if start_pos != -1:
end_pos = str.find('\0', start_pos)
if end_pos == -1:
end_pos = len(str)
sql = str[start_pos:end_pos]
Andreas
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[Tutor] what does the @ operator mean?
I'm looking at some code from Enthought's ETS examples and ran across the following statement: @mayavi2.standalone I have no idea what the @ operator means, if anything. I tried searching for it in the documentation (locally and online), but no luck. Or rather, the local (windows) help said it couldn't search for that phrase (@) and the online search turned up a bazillion hits and I don't know how to refine the search. Knowledge isn't necessary for me to proceed, but it sure would be nice. Thanks. Mary Lou Knack___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] what does the @ operator mean?
On Mon, Dec 15, 2008 at 12:33 PM, Mary Lou Knack mlkn...@gmail.com wrote: I'm looking at some code from Enthought's ETS examples and ran across the following statement: @mayavi2.standalone I have no idea what the @ operator means, if anything. I tried searching for it in the documentation (locally and online), but no luck. Or rather, the local (windows) help said it couldn't search for that phrase (@) and the online search turned up a bazillion hits and I don't know how to refine the search. It indicates a decorator. Try this: http://en.wikipedia.org/wiki/Python_syntax_and_semantics#Decorators If you're just starting out in Python, decorators can be hard to get your head around... -- www.fsrtechnologies.com ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] need to clean a string
On Monday 15 December 2008 11:31:12 am Andreas Kostyrka wrote:
Am Mon, 15 Dec 2008 10:18:28 -0800
schrieb johnf jfabi...@yolo.com:
Hi,
I have a string that I need to extract just the sql
statement. The following is the string
\000\000\000\000\000\000\000\000.\000\000\000\\000\000\000
\000$\000\000\000\000\000(\000\000\000\000X\000\000\000\000\000,
\000\000\000\000P\000\000\000\000\000Q\000\000\000\000\000R\000
\000\000\000\000/\000\000\000� \000\000\000\000% \000\000\000
\000'\000\000\000\000+brttyp\000�\000\000\000\000*SELECT
Brttyp.ctrscode, Brttyp.cdescript, Brttyp.ctrstype, Brttyp.cstatus,
Brttyp.lreqno, Brttyp.dcreate FROM brttyp Brttyp WHERE
Brttyp.ctrscode = ( ?gcKey1 )\000\000\000\000\000
AMCONNECT\000\000\000\000\000) \000\000\000\000 \000\000\000
\000\000\000\000BR Transaction Code File\000
How can I get rid of all the junk?
I can find the '*' with str.find('*') but I can't use find '\000' to
get to the end?
str.find has an optional second parameter specifying the start where to
search:
Given the above string as str, you can do:
start_pos = str.find('*')
sql = None
if start_pos != -1:
end_pos = str.find('\0', start_pos)
if end_pos == -1:
end_pos = len(str)
sql = str[start_pos:end_pos]
Andreas
Thanks I got it done just as you explained. What was interesting was my
editor showed '\x000' and not '\000' so I was always looking for the wrong
thing. I thought I was doing it wrong. Then while re-reading the message I
sent to this list I noticed the lack of the 'x'. And sure enough that was
the problem. Thanks for your help.
--
John Fabiani
___
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Re: [Tutor] need to clean a string
Am Mon, 15 Dec 2008 12:43:46 -0800
schrieb johnf jfabi...@yolo.com:
On Monday 15 December 2008 11:31:12 am Andreas Kostyrka wrote:
Am Mon, 15 Dec 2008 10:18:28 -0800
schrieb johnf jfabi...@yolo.com:
Hi,
I have a string that I need to extract just the sql
statement. The following is the string
\000\000\000\000\000\000\000\000.\000\000\000\\000\000\000
\000$\000\000\000\000\000(\000\000\000\000X\000\000\000\000\000,
\000\000\000\000P\000\000\000\000\000Q\000\000\000\000\000R\000
\000\000\000\000/\000\000\000� \000\000\000\000% \000\000\000
\000'\000\000\000\000+brttyp\000�\000\000\000\000*SELECT
Brttyp.ctrscode, Brttyp.cdescript, Brttyp.ctrstype,
Brttyp.cstatus, Brttyp.lreqno, Brttyp.dcreate FROM brttyp Brttyp
WHERE Brttyp.ctrscode = ( ?gcKey1 )\000\000\000\000\000
AMCONNECT\000\000\000\000\000) \000\000\000\000 \000\000\000
\000\000\000\000BR Transaction Code File\000
How can I get rid of all the junk?
I can find the '*' with str.find('*') but I can't use find '\000'
to get to the end?
str.find has an optional second parameter specifying the start
where to search:
Given the above string as str, you can do:
start_pos = str.find('*')
sql = None
if start_pos != -1:
end_pos = str.find('\0', start_pos)
if end_pos == -1:
end_pos = len(str)
sql = str[start_pos:end_pos]
Andreas
Thanks I got it done just as you explained. What was interesting was
my editor showed '\x000' and not '\000' so I was always looking for
the wrong thing. I thought I was doing it wrong. Then while
re-reading the message I sent to this list I noticed the lack of the
'x'. And sure enough that was the problem. Thanks for your help.
Well \xHH is the hexadecimal notation, while \OOO is the octal
notation. The problem is that \x000 means the 00 byte followed the
character 0.
Andreas
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[Tutor] Reading module to import from a string
Suppose I have a module that I want to import called ImMod1 that's saved in a variable like so: var = ImMod1 Is there some way to import ImMod1 by using var? Thanks, Basu -- The ByteBaker : http://www.bytebaker.com ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Reading module to import from a string
On 12/15/2008 5:38 PM, Shrutarshi Basu wrote: Suppose I have a module that I want to import called ImMod1 that's saved in a variable like so: var = ImMod1 Is there some way to import ImMod1 by using var? http://stackoverflow.com/questions/67631/how-to-import-module-from-file-name -- Sincerely, Chris Calloway http://www.secoora.org office: 332 Chapman Hall phone: (919) 599-3530 mail: Campus Box #3300, UNC-CH, Chapel Hill, NC 27599 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Reading module to import from a string
On 12/15/2008 5:38 PM, Shrutarshi Basu wrote: Suppose I have a module that I want to import called ImMod1 that's saved in a variable like so: var = ImMod1 Is there some way to import ImMod1 by using var? http://docs.python.org/library/imp.html -- Sincerely, Chris Calloway http://www.secoora.org office: 332 Chapman Hall phone: (919) 599-3530 mail: Campus Box #3300, UNC-CH, Chapel Hill, NC 27599 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] numarray issues
Hello, I am a python beginner, and I have a question about scalars vs arrays. I am making a (very simple) code, and part of it is: from numarray import * from math import * def source(x,y): f=sin(x) return f a=4. m=10 dx=a/(m+1.) x=zeros([m,1], Float) print x[0] print func(x[0]) When I run this code, I get: [ 0.] 0.0 However, if I change the line f=sin(x) to f=2*x, I will get: [ 0.] [ 0.] Why does func(x[0]) return a scalar for sin(x), but returns an array for 2*x? If I want a scalar returned for f=2*x, I need to put in func(x[0,0]). Why do x[0] and x[0,0] both work for sin(x), but only x[0,0] will work for 2*x? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] what does the @ operator mean?
On 12/15/2008 3:42 PM, Marc Tompkins wrote: If you're just starting out in Python, decorators can be hard to get your head around... This would be a huge help: http://www.ddj.com/web-development/184406073 -- Sincerely, Chris Calloway http://www.secoora.org office: 332 Chapman Hall phone: (919) 599-3530 mail: Campus Box #3300, UNC-CH, Chapel Hill, NC 27599 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Creating IDLE Shortcut
Bradford Fisher fisher@wright.edu wrote I've attempted creating a shortcut and linking it to pythonw.exe The one the installer created on my PC is a shortcut to: C:\Python24\Tools\scripts\idle.pyw with a start-in directory of C:\Python24\Tools\scripts HTH, Alan G. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] what does the @ operator mean?
Marc Tompkins marc.tompk...@gmail.com wrote If you're just starting out in Python, decorators can be hard to get your head around... I've been using Python for oover 10 years and still find decorators hard to get my head around! :-) I confess I'm not a fan, they go against the Python spirit of explicit is best in my opinion. If I'm calling a function I like to know I'm calling a function... I know they make the code look pretty but IMHO they are a pain to debug and I'm never totally convinced I've got it exactly right. Alan G ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] numarray issues
Mr Gerard Kelly wrote: Hello, I am a python beginner, and I have a question about scalars vs arrays. I am making a (very simple) code, and part of it is: from numarray import * from math import * def source(x,y): f=sin(x) return f a=4. m=10 dx=a/(m+1.) x=zeros([m,1], Float) print x[0] print func(x[0]) When I run this code, I get: [ 0.] 0.0 However, if I change the line f=sin(x) to f=2*x, I will get: [ 0.] [ 0.] Why does func(x[0]) return a scalar for sin(x), but returns an array for 2*x? If I want a scalar returned for f=2*x, I need to put in func(x[0,0]). Why do x[0] and x[0,0] both work for sin(x), but only x[0,0] will work for 2*x? sin() expects a scalar value. x[0] is a 1 element array. numarray magically converts the 1 element array to a scalar. x[0]*2 multiplies each element of the array by 2 giving an array result. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor -- Bob Gailer Chapel Hill NC 919-636-4239 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] numarray issues
Please always reply-all so a copy goes to the list. Mr Gerard Kelly wrote: is there a quick way to convert a one element array into a scalar value so that I can use x[0] for all operations? x = x[0] - Original Message - From: bob gailer bgai...@gmail.com Date: Tuesday, December 16, 2008 11:19 am Subject: Re: [Tutor] numarray issues Mr Gerard Kelly wrote: Hello, I am a python beginner, and I have a question about scalars vs arrays. I am making a (very simple) code, and part of it is: from numarray import * from math import * def source(x,y): f=sin(x) return f a=4. m=10 dx=a/(m+1.) x=zeros([m,1], Float) print x[0] print func(x[0]) When I run this code, I get: [ 0.] 0.0 However, if I change the line f=sin(x) to f=2*x, I will get: [ 0.] [ 0.] Why does func(x[0]) return a scalar for sin(x), but returns an array for 2*x? If I want a scalar returned for f=2*x, I need to put in func(x[0,0]). Why do x[0] and x[0,0] both work for sin(x), but only x[0,0] will work for 2*x? sin() expects a scalar value. x[0] is a 1 element array. numarray magically converts the 1 element array to a scalar. x[0]*2 multiplies each element of the array by 2 giving an array result. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor -- Bob Gailer Chapel Hill NC 919-636-4239 -- Bob Gailer Chapel Hill NC 919-636-4239 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] what does the @ operator mean?
Thanks Chris Marc I certainly don't need to know about decorators at this stage of my development. Maybe I'll be able to avoid them entirely Mary Lou - Original Message - From: Chris Calloway c...@unc.edu To: tutor@python.org Sent: Monday, December 15, 2008 2:22 PM Subject: Re: [Tutor] what does the @ operator mean? On 12/15/2008 3:42 PM, Marc Tompkins wrote: If you're just starting out in Python, decorators can be hard to get your head around... This would be a huge help: http://www.ddj.com/web-development/184406073 -- Sincerely, Chris Calloway http://www.secoora.org office: 332 Chapman Hall phone: (919) 599-3530 mail: Campus Box #3300, UNC-CH, Chapel Hill, NC 27599 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] what does the @ operator mean?
On Mon, Dec 15, 2008 at 5:03 PM, Alan Gauld alan.ga...@btinternet.com wrote: Marc Tompkins marc.tompk...@gmail.com wrote If you're just starting out in Python, decorators can be hard to get your head around... I've been using Python for oover 10 years and still find decorators hard to get my head around! :-) I confess I'm not a fan, they go against the Python spirit of explicit is best in my opinion. If I'm calling a function I like to know I'm calling a function... I know they make the code look pretty but IMHO they are a pain to debug and I'm never totally convinced I've got it exactly right. Alan G ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor I'm sorry I left it as flat as I did - that Dr. Dobbs article is a pretty good explanation, and there's an article somewhere in the Effbot bookshelf that does a decent job - but I couldn't find either one at that moment. I've only been using Python for a couple of years now, but my experience so far is the same as yours: decorators make my head hurt. Even in the Dr. Dobbs article, the examples seem horribly contrived. There must be plenty of programmers who use decorators all the time and would feel lost without them, but I have yet to see a compelling use case. (It's always something like Here's another useless, made-up situation. We could handle it in a straightforward way, but wouldn't it be cooler if we used a decorator instead?) Actually, I'm being unnecessarily harsh: I can imagine a theoretical case, where there is some operation you wish to apply to several functions, and you don't want to write the code more than once. (Wrapping a timer around functions comes to mind.) But I've never run across a situation where a decorator actually seemed like the best way to do it, and (almost) all of the articles on the subject feel like they were written to check an action item off the editor's to-do list: this book won't be complete unless we mention decorators, so better slop something together. Does anybody who reads this list use decorators and have a nice word to say about them? I'd be interested to hear it. -- www.fsrtechnologies.com p.s. - Is anybody else as sick of the phrase syntactic sugar as I am? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] what does the @ operator mean?
Marc Tompkins wrote: On Mon, Dec 15, 2008 at 5:03 PM, Alan Gauld alan.ga...@btinternet.com wrote: I've been using Python for oover 10 years and still find decorators hard to get my head around! :-) I've only been using Python for a couple of years now, but my experience so far is the same as yours: decorators make my head hurt. Interesting. I actually rather like them and find them to be a tool to clean up code quite a bit. Python's ability to have classes offer attributes which are really handled by wrapper functions is a similar animal (in the sense that they can be very nice but also could be horribly abused to make smelly code). That said, I don't find myself using them too often. Sort of like a special seasoning you add to the occasional dish but exotic enough to taste weird if you used it all the time. For example, creating web apps in TurboGears uses decorators to expose methods, apply error handling and output templates without unnecessarily cluttering all your method definitions. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] problems finding position in list and changing it for GO game
Hi I am looking for some help if you have or worked with pygame or not I'm sure if you have not you could still help me I am working on a *GO game* no AI a analog behavior only I have the stones going to the board and switching colors between black and white but I want to take *stones/pieces* off and count them and if you don't play go it's okay as well but might help the MOUSEBUTTONDOWN gives the black0 XandYpositions with the*.append* how do I reference the address in the list by using XandYpositions Then replace them or take it out off the list This code puts out an error when you hit the letter b Traceback (most recent call last): File C:/Users/Lee/Desktop/pyGame01/GO/GO_1_2_3.py, line 46, in module for stone in len(black0): TypeError: 'int' object is not iterable Which I'm not really sure what that means or how to remedy it as well Thank you everyone ## geting there black and white stones alternate now the issue ## of taking the stones off the board ## Or more precisely to .insert into the list at an address that I detected by finding the X. and the Y. by using the ## if event.pos == range( black0[stone][0] - (stoneWidth/2), black0[stone][0] + ((stoneWidth/2)+1)): import pygame from pygame.locals import * from sys import exit pygame.init() screen = pygame.display.set_mode((758, 758), 0, 32) ##Color color0 = (0,255) b = 0 white0 = [] #white0 black0 = [] #black0 stoneWidth = 20 while True: pressed_keys = pygame.key.get_pressed() for event in pygame.event.get(): if event.type == QUIT: exit() if event.type == MOUSEBUTTONDOWN:##makes a variable out of the X. and Y. coordinates if b==0: b=1 black0.append(event.pos)##black0.append [X. and Y.] black1.append(event.pos) print black points1 print black0 print else: b=0 white0.append(event.pos) white1.append(event.pos) print white points print white0 print if event.type == KEYDOWN: if event.key == K_b: print cut black for stone in len(black0):##I'm not sure here either is this the way I would look for detection of mouse in the range Circleif event.pos == range( black0[stone][0] - (stoneWidth/2), black0[stone][0] + ((stoneWidth/2)+1)): ## this is where I get confused what should I do ## black0.insert(event.pos,0) if event.pos == range( black0[stone][1] - (stoneWidth/2), black0[stone][1] + ((stoneWidth/2)+1)): ## this is where I get confused what should I do ##black0.insert(event.pos,1) screen.fill((229,181,83)) screen.lock() for white in white0: #you're drawing pygame.draw.circle(screen, (color0[1],color0[1],color0[1]), white, 20) for black in black0: pygame.draw.circle(screen, (color0[0],color0[0],color0[0]), black, 20) screen.unlock() pygame.display.update() ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] problems finding position in list and changing it for GO game
On Mon, Dec 15, 2008 at 10:01 PM, Lee Meredith tesujicam...@gmail.comwrote: snip the MOUSEBUTTONDOWN gives the black0 XandYpositions with the*.append* how do I reference the address in the list by using XandYpositions Then replace them or take it out off the list This code puts out an error when you hit the letter b This error is pretty verbose, as most python errors are: Traceback (most recent call last): File C:/Users/Lee/Desktop/pyGame01/GO/GO_1_2_3.py, line 46, in module This line tells you that the offending statement, the one that broke your program/contained a bug is on line 46. Usually this is a pretty good place to start looking. for stone in len(black0): That tells you the statement that broke TypeError: 'int' object is not iterable This line tells you /why/ it broke, which is usually the most important bit, and this one gives you some good information. First off, it tells you the type of error, in this case TypeError. AFAIK, this means you tried to do something with a type that isn't allowed. In this case you tried to iterate over an integer. This doesn't work. Would you expect this to work? for num in 7: Hopefully your experience with python will tell you that it would be silly to think of such a thing.However, if you were to say: for num in range(0, 7): - that would be a little more sane. In this case, you are performing something similar to the prior example: you're trying to iterate over a single integer. len() returns the length of the list as an integer value. If you look at some of your other statements you have for white in white0: - a list is iterable, and white0 is a list. I hope this helps, Wayne Which I'm not really sure what that means or how to remedy it as well Thank you everyone ## geting there black and white stones alternate now the issue ## of taking the stones off the board ## Or more precisely to .insert into the list at an address that I detected by finding the X. and the Y. by using the ## if event.pos == range( black0[stone][0] - (stoneWidth/2), black0[stone][0] + ((stoneWidth/2)+1)): import pygame from pygame.locals import * from sys import exit pygame.init() screen = pygame.display.set_mode((758, 758), 0, 32) ##Color color0 = (0,255) b = 0 white0 = [] #white0 black0 = [] #black0 stoneWidth = 20 while True: pressed_keys = pygame.key.get_pressed() for event in pygame.event.get(): if event.type == QUIT: exit() if event.type == MOUSEBUTTONDOWN:##makes a variable out of the X. and Y. coordinates if b==0: b=1 black0.append(event.pos)##black0.append [X. and Y.] black1.append(event.pos) print black points1 print black0 print else: b=0 white0.append(event.pos) white1.append(event.pos) print white points print white0 print if event.type == KEYDOWN: if event.key == K_b: print cut black for stone in len(black0):##I'm not sure here either is this the way I would look for detection of mouse in the range Circleif event.pos == range( black0[stone][0] - (stoneWidth/2), black0[stone][0] + ((stoneWidth/2)+1)): ## this is where I get confused what should I do ## black0.insert(event.pos,0) if event.pos == range( black0[stone][1] - (stoneWidth/2), black0[stone][1] + ((stoneWidth/2)+1)): ## this is where I get confused what should I do ##black0.insert(event.pos,1) screen.fill((229,181,83)) screen.lock() for white in white0: #you're drawing pygame.draw.circle(screen, (color0[1],color0[1],color0[1]), white, 20) for black in black0: pygame.draw.circle(screen, (color0[0],color0[0],color0[0]), black, 20) screen.unlock() pygame.display.update() ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor -- To be considered stupid and to be told so is more painful than being called gluttonous, mendacious, violent, lascivious, lazy, cowardly: every weakness, every vice, has found its defenders, its rhetoric, its ennoblement and exaltation, but stupidity hasn't. - Primo Levi ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] MP3Info class usage
Gareth at Serif wrote: Okay, I've moved over to eyeD3.py... fif nothing else, the documentation for it's usage is far superior. However, I can't get anything to run. The help gives examples of some simple tasks, but as soon as I 'import eyeD3', not even calling any functions within it, I start getting errors such as: In eyeD3.py, the 'from eyeD3.tag import *;' line (and similar) didn't work until I removed the 'eyeD3.' part and just imported 'tag'. How have you installed eyeD3? Perhaps there's something wrong with the installation. Certainly, 'import eyeD3' should not create any errors. Then in tag.py, some of the class defs complained about undefined variables, for example 'def link(self, f, v = ID3_ANY_VERSION)' needed to have quotes around 'ID3_ANY_VERSION'. That's not what you want to do. ID3_ANY_VERSION is defined in eyeD3/__init__.py. If you quote it, you're breaking it. I'm baffled that I'm having to jump through so many hoops because I imported eyeD3... is this typical? What have I done wrong? That's hard to guess at. If you can explain what you have done and how you've installed eyeD3, that would help. -- ToddOpenPGP - KeyID: 0xBEAF0CE3 | URL: www.pobox.com/~tmz/pgp ~~ Don't look for me in daylight where robots all assemble. You'll find me in my dark world, in my smoke-filled temple. pgpcUXQkD7v1L.pgp Description: PGP signature ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] listen in on other program's tcp connections
On windows XP, I'm running a program that sends TCP connections on port 5039. I'v ran wireshark to determine this. I want to create a simple program that listens for these connections and intercepts and then turns the data transferred into a string. From there I'd obviously like my program to act and manipulate those strings, but for now just spitting out that intercepted TCP data is good enough. I was reading up on Twisted. http://twistedmatrix.com/ Can someone get me started on how to do this with twisted framework or anything else? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
