🌐 Mailman 3 October 2001 - Tutor - python.org

Browser-based Python Interpreter
by Fred Allen Nov. 7, 2001

Nov. 7, 2001

I would like to find a Python interpreter that is adapted to operate independently via a browser, e.g. IE5.0. To be clearer, I mean a Python facility akin to the Java Runtime Environment. It seems I've encountered references to such facilities several times, but, now, cannot find them. With thanks in advance for any's efforts, I am, Respectfully, Fred Allen

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MySQLdb saga continues :(
by Pijus Virketis Nov. 1, 2001

Nov. 1, 2001

Hi again, well, my helpfull ISP admin sent me this message: --------------------- error message ---------------------- OK, I downloaded Disutils and followed the install instructions and got the following error: python setup.py install Error in %s at %d: %s ('setup.cfg', 21, "'[bdist_rpm]\\012'") Error in %s at %d: %s ('setup.cfg', 24, "'doc_files = CHANGES.txt\\012'") Traceback (innermost last): File "setup.py", line 13, in ? setup (name = "Distutils", File "distutils/core.py", line 110, in setup dist.parse_config_files() File "distutils/dist.py", line 323, in parse_config_files parser.read(filename) File "/usr/lib/python1.5/ConfigParser.py", line 154, in read self.__read(fp) File "/usr/lib/python1.5/ConfigParser.py", line 232, in __read cursect = cursect[optname] + '\n ' + value TypeError: expected integer index --------------------- end error message ---------------------- Sorry to bother you with this, but this is really what I know nothing about in Python. Any ideas as to how to do this thing? Cheers, Pijus ------------------------------------------------------------ PGP PUBLIC KEY: www.fas.harvard.edu/~virketis/links My weblog: www.fas.harvard.edu/~virketis

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[Q] Tkinter
by Young-Jin Lee Nov. 1, 2001

Nov. 1, 2001

Hi, all. I have a question using Tkiner. Here is the sample code I used. from Tkinter import * class App: def __init__(self, master): frame = Frame(master) frame.pack() self.button = Button(frame, text="QUIT", fg="red", command=frame.quit) self.button.pack(side=LEFT) self.hi_there = Button(frame, text="Hello", command=self.say_hi) self.hi_there.pack(side=LEFT) def say_hi(self): print "hi there, everyone!" root = Tk() app = App(root) root.mainloop() How can I make this test application to quit instead of Python shell itself? When I click the quit button, the IDLE itself quits. This is not what I wanted. I want to close only this application. How can I do this? Thanks.

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help
by james middendorff Nov. 1, 2001

Nov. 1, 2001

hello, could someone please tell me how to display a text file, and then be able to type more information into that file? thanks "I would kill everyone in this room for a drop of sweet beer." ----Homer Simpson---- --------------------------------- Do You Yahoo!? Make a great connection at Yahoo! Personals.

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problem installing MySQLdb
by Pijus Virketis Oct. 31, 2001

Oct. 31, 2001

Hi, here is a message I got from my ISP when I asked them to install the MySQLdb module: ------------------------ error message ------------------------- Hi, I tried installing the MySQL python module and it gives me this error. [root@host14 MySQL-python-0.9.1]# python setup.py build Traceback (innermost last): File "setup.py", line 6, in ? from distutils.core import setup ImportError: No module named distutils.core Where can I get the distutils.core module? After I install that I'll try to install the python MySQL module again. Thanks. --------------------------- end error message ------------------- I am not a big expert on the internals of Python, but distutils.core is not a typical name for a "module", is it? What could be the problem here? My ISP is running Python 1.5.1 on (probably) Linux. They use Apache. Thank you! Pijus

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Argument values in C extension functions
by Bob Lunney Oct. 31, 2001

Oct. 31, 2001

I've inherited a (very cool) piece of Python code that uses a C extension library. In the library code are checks to determine if the extension function is receiving anything in the PyObject* args tuple. It checks this by seeing if args != NULL. If so, it bales out. This particular function requires keyword arguments, and the PyMethodDef struct is set up to use METH_KEYWORDS. My question is: will args necessarily be NULL (in Python 2.1) when using keyword argument passing. This worked in Python 1.5.1, but no longer works in Python 2.1. If the extension function calling protocol has changed between the two Python versions will someone please give me a synopsis of the changes or point me to the appropriate resource material? Thanks in advance, Bob Lunney __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com

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Re: [Tutor] Waiting for input.
by Jeff Shannon Oct. 31, 2001

Oct. 31, 2001

> From: <kromag(a)nsacom.net> > > I would like to have the following function pause between loops: > Several people have already answered your question about pausing, but there's a few other odd things in your function that I'd like to point out.... > ------------------the following function------------------ > def do_r(self,_): You're passing two variables here, the implicit self (so this is really a method, rather than an unbound function?) and '_', which you never use. Any reason to include it at all? > saved=open('save','r') > messagebase=cPickle.load(saved) > saved.close() > post=messagebase.keys() Here you assign a list of keys to post .... > > ticker=1 > count=len(messagebase)+1 > while ticker < count: > post=messagebase[ticker] then here, you totally overwrite the list of keys, with a single value.... > > print 'nn Posted by: '+post[0]+' > '+time.ctime(post[1])+'n'+post[2] .... which looks to be another list (or tuple?). So why the original assignment of post=messagebase.keys() ? You never use that value before replacing it with post=messagebase[ticker]. Not only that, but your explicit while-loop and counter variable, would be better done with a for-loop which handles counters and indexing implicitly. And as a minor additional note, you add a bunch of strings together for your print statement--string concatenation like this is very inefficient in Python, you're much better using formatted substitution instead. So, a quick rewrite of your function (guessing a bit as to the contents of your pickle...): def do_r(self): saved = open('save','r') messagebase = cPickle.load(saved) saved.close() for msg in messagebase: print 'nn Posted by: %s %s n %s' % (msg[0], time.ctime(msg[1]), msg[2]) time.sleep(2) #presuming that this is how you wanted to pause.... Obviously, if your pickle is something other than a list of lists (or list of tuples), then this will need modified to handle whatever data is actually in the pickle. You're also not doing anything with the contents of the pickle, other than printing them--it'd be easy to add whatever processing you want into the for-loop. Hope that this provides some food for thought... :) Jeff Shannon Technician/Programmer Credit International

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Using re/search with dictionaries
by Jackson Oct. 31, 2001

Oct. 31, 2001

Greetings -- How do I search dict keys? and return the records that go along with them? It seems as if it should be something along this line: # we're looking for keys/records with blue* in them. m=rd.search("\w[blue]+",d.keys()) if m: print repr(m.group(0)) and the output should be: [blue-001"]=["blueberry pie"] ["blue-002"]=["blueberry cobbler"] ["blue-003"]=["blueberry muffins"] ... .... Thanks for you time David Jackson --------------- create dict script ---------------------- #!/usr/bin/python import re d = {} d["blue-001"]=["blueberry pie"] d["blue-002"]=["blueberry cobbler"] d["blue-003"]=["blueberry muffins"] d["cherry-001"]=["cherry pie"] d["cherry-002"]=["wild cherry icecream"] d["blueberry"]=["muffins"] d["bluebird"]=["feathered friend"] d["red red robin"]=["goes bob bob bobing along"]

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[OT] Bay PIGgies hijacked?
by dman Oct. 31, 2001

Oct. 31, 2001

I'm sending this to the list because IIRC there are some people on this list that are part of the Bay PIGgies group. I sent a private message to someone earlier, but they're not part of the baypiggies. ---- I just tried to follow a link to an intro on using libglade with python on www.baypiggies.org, but ended up at a porn site >8^p. Did someone screw up the DNS records? Is there a way I can get to the site (is it a static IP that you can share)? BTW, the link was on an old GNOME news page found by Google. The news item is dated "Nov. 21" so it must be at least almost a year old. TIA, -D

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Waiting for input.
by kromag＠nsacom.net Oct. 30, 2001

Oct. 30, 2001

(I just found the range() function, so this will change soon! :-) It kinda works like I want it to at this point....) I would like to have the following function pause between loops: ------------------the following function------------------ def do_r(self,_): saved=open('save','r') messagebase=cPickle.load(saved) saved.close() post=messagebase.keys() ticker=1 count=len(messagebase)+1 while ticker < count: post=messagebase[ticker] print 'nn Posted by: '+post[0]+' '+time.ctime(post[1])+'n'+post[2] ticker=ticker+1 -----------------biting off more than I can chew..--------- I keep scoping the Basic Statements chapter in "Learning Python" and have found nothing that seems to fit. Where do I need to look? Thanks folks!

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