🌐 Mailman 3 November 2007 - Python-list - python.org

mimicking a file in memory
by p. Dec. 12, 2007

Dec. 12, 2007

I am using the mutagen module to extract id3 information from mp3 files. In order to do this, you give mutagen a filename, which it converts into a file object using the python built-in "file" function. Unfortunately, my mp3 files don't live locally. They are on a number of remote servers which I access using urllib2. Here is my dilemma: I don't want to copy the files into a local directory for mutagen's sake, only to have to remove them afterward. Instead, I'd like to load the files into memory and still be able to hand the built-in "file" function a filename to access the file in memory. Any ideas on how to do this?

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Different kinds of Import Errors
by Thomas Guettler Dec. 9, 2007

Dec. 9, 2007

If you look at this code, you see there are two kind of ImportErrors: 1. app_name has no attribute or file managment.py: That's OK. 2. managment.py exists, but raises an ImportError: That's not OK: reraise # Import the 'management' module within each installed app, to register # dispatcher events. for app_name in settings.INSTALLED_APPS: try: __import__(app_name + '.management', {}, {}, ['']) except ImportError, exc: if exc.args[0]!='No module named management': raise I am searching a better solution, since in a future version of python the string 'No module namend management' might be changed. Any better solution?

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Re: new style class
by aahz＠pythoncraft.com Dec. 8, 2007

Dec. 8, 2007

In article <mailman.781.1194004722.13605.python-list(a)python.org>, Nigel Rantor <wiggly(a)wiggly.org> wrote: > >I think what Boris was being exceedingly unhelpful in saying was "why >should it work when you're calling methods that do not exist" http://www.catb.org/~esr/faqs/smart-questions.html -- Aahz (aahz(a)pythoncraft.com) <*> http://www.pythoncraft.com/ "Typing is cheap. Thinking is expensive." --Roy Smith

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Python web frameworks
by joe jacob Dec. 8, 2007

Dec. 8, 2007

There are a lot of web frameworks for python like django, mod_python, spyce, turbo gears, Zope, Cherrypy etc. Which one is the best in terms of performance and ease of study.

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Re: eof
by braver Dec. 8, 2007

Dec. 8, 2007

On Nov 22, 6:08 pm, "J. Clifford Dyer" <j...(a)sdf.lonestar.org> wrote: > > So why Python's IO cannot yield f.eof() as easily as Ruby's can? :) > Because that's not how you compare languages. You compare languages by stating what you are actually trying to do, and figuring out the most natural solution in each language. Not "I can do this in x--how come I can't do it in y?" Python doesn't have f.eof() because it doesn't compare to Ruby? Or because I'm trying to compare them? :) That's giving up to Ruby too early! Ruby has iterators and generators too, but it also has my good ol' f.eof(). I challenge the assumption here of some majectically Python- wayist spirit forbidding Python to have f.eof(), while Ruby, which has all the same features, has it. Saying "it's not the Python way" is not a valid argument. The suspicion lurking in the thread above was that that has to do with Python IO buffering, that it somehow can't tell the f.eof() with automatic look-ahead/push-back/simulate read, as transparently an effectively as (in practice) Ruby does without much fuss. The reason why such a useful feature -- useful not in Ruby or Perl or Pascal, but algorithmically -- is not present in Python is a recurrent mystery, evidenced in this group recurrently. Cheers, Alexy

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eof
by braver Dec. 8, 2007

Dec. 8, 2007

I'd like to check, for a filehandle f, that EOF has been reached on it. What's the way to do it? I don't want to try/except on EOF, I want to check, after I read a line, that now we're in the EOF state. In Ruby it's f.eof: In Ruby: >> f = File.open("jopa") => #<File:jopa> >> f.read() => "jopa\n" >> f.eof => true Is there a Python analog? Cheers, Alexy

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How can I create customized classes that have similar properties as 'str'?
by Licheng Fang Dec. 6, 2007

Dec. 6, 2007

I mean, all the class instances that equal to each other should be reduced into only one instance, which means for instances of this class there's no difference between a is b and a==b. Thank you.

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"Python" is not a good name, should rename to "Athon"
by ureuffyrtu955＠gmail.com Dec. 6, 2007

Dec. 6, 2007

Python is a good programming language, but "Python" is not a good name. First, python also means snake, Monty Python. If we search "python" in google, emule, many results are not programming resource. If we search PHP, all results are programming resource. Second, python also means snake, snake is not a good thing in western culture. Many people dislike any things relevant to snake. We must have high regard for the custom. Now, python3000 is coming. It's the best time to rename! Athon is a good candidate, you could provide better names. In Athon, the first letter "A" could pronounce as [ e ] .

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How to debug Python program with GUI (Tkinter)?
by Davy Dec. 5, 2007

Dec. 5, 2007

Hi all, How to debug Python program with GUI, especially Tkinter? My debug environment is PythonWin. For example, when I single step in the program, the step will go to mainloop() and always loop there. How can I know where the program is processed? Any suggestions are welcome! Best regards, Davy

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os.path.islink documentation error?
by Giampaolo Rodola' Dec. 4, 2007

Dec. 4, 2007

os.path.islink documentation says: "Return True if path refers to a directory entry that is a symbolic link. Always False if symbolic links are not supported." It's not clear to me why it is mentioned the DIRECTORY term. Shouldn't os.path.islink be used to just check if the *path* passed as argument is a symlink? In such case I would change it in: "Return True if path refers to a symbolic link"

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