Re: Newbie: Help Figger Out My Problem

[db]

On Tue, 28 Jun 2005 00:23:30 -0700, ChuckDubya wrote:

> ##Coin Flip: randomly flips 100 "coins" and prints results
> ##Original draft: june 27, 2005
> ##Chuck
> 
> import random
> heads = 0
> tails = 0
> flips = 0
> while flips < 99:
> coin = random.randrange(0, 2)
> if coin == 0:
> heads = heads + 1
> else:
> tails = tails + 1
> flips = flips + 1
> if flips >= 99:
> print "Heads: " + heads
> print "Tails: " + tails
> print "Total: " + flips + "flips"
> raw_input("Press the enter key to exit.")
> 
> 
> 
> When I save and run this "program", I get a DOS window that flashes at
> me and disappears.  What's wrong with it?
Your programm gives an error. You are trying to concatenate strings with  
integers.

http://docs.python.org/lib/typesseq-strings.html

import random
heads = 0
tails = 0
flips = 0
while flips < 99:
coin = random.randrange(0, 2)
if coin == 0:
heads = heads + 1
else:
tails = tails + 1
flips = flips + 1
if flips >= 99:
print "Heads: %s" % heads   ## string formatting
print "Tails: %s"  %tails   ## string formatting
print "Total: %s flips" % flips ## string formatting
raw_input("Press the enter key to exit.")

hth Arjen



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Re: Inheritance problem ?

[db]

On Wed, 24 Aug 2005 03:34:36 -0700, tooper wrote:

> Hello all,
> 
> I'm trying to implement a common behavior for some object that can be
> read from a DB or (when out of network) from an XML extract of this DB.
> I've then wrote 2 classes, one reading from XML & the other from the
> DB, both inheritating from a common one where I want to implement
> several common methods.
> Doing this, I've come to some behaviour I can't explain to myself,
> which I've reproduced in the example bellow :
> 
> -
> 
> class myfather:
>   def __repr__(self):
>   return "\t a="+self.a+"\n\t b="+self.b
> 
> class mychilda(myfather):
>   def __init__(self,a):
>   self.a= a
>   def __getattr__(self,name):
>   return "Undefined for mychilda"
> 
> class mychildb(myfather):
>   def __init__(self,b):
>   self.b= b
>   def __getattr__(self,name):
>   return "Undefined for mychildb"
> 
> a= mychilda("a")
> b= mychildb("b")
> 
> print "a:\n"+str(a)
> print "b:\n"+str(b)
> 
> -
> 
> I was expecting to get :
> 
> a:
>a= a
>b= Undefined for mychilda
> b:
>a= Undefined for mychildb
>b= b
> 
> but I get the following error :
> 
> File "/home/thierry/mytest.py", line 20, in ?
> print "a:\n"+str(a)
> TypeError: 'str' object is not callable
> 
> Could someone explain me what I missed ?
> 
> Thanks in advance !

try new style classes.
class myfather(object):

see http://users.rcn.com/python/download/Descriptor.htm

HTH Arjen



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Re: Javadoc style python manual?

[db]

On Fri, 08 Sep 2006 01:11:06 -0700, xiong.xu.cn wrote:

> Hi there,
> 
> I'm new to python and I'm from the java world.
> Though I love to learn python, I'm not very comfortable with the python
> documentation.
> Because when i read jdk doc, i can see the class hierachy, class
> member, class methods etc in html docs. It's very easy for me to
> understand the Java language.
> But in python, i find it kind of inconvient.
> 
> Any advice?
> 
> Thx,
> Xiong

pydoc is something I know, it is included in the standard distibution

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Re: running commands with sudo & python

[db]

Hi there,

I think you can do that with pexpect

http://pexpect.sourceforge.net/

good luck

On Thu, 28 Sep 2006 14:18:14 -0700, coldsoul4e wrote:
> Hi!
> I must execute a command with os.command(), but with root permissions.
> Is there anyway to do that with python? 
> Thanks



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write html-headers (utf-8)

[db]

Hello all,

I hope this is the correct newsgroup for this question.

Does anybody know how I can write a html-header with python(cgi)? 
The problem is, I have a few html templates in which I have a header e.g:

http://www.w3.org/TR/html4/strict.dtd";>




In this template I write a few Mysql variables. 
Those variable often have german characters. This characters (Gösing in
stead of Gösing). The german characters in the html template are shown
correctly.

If I change the character encoding with the browser to utf-8, all the 
characters are shown correctly. 
As you can see, I put in the header of the html template that the encoding
is UTF-8, the browser still shows windows ISO-8859-15. Can I write the
header with python so the browser uses the utf-8 encoding?

My hosting providor uses fedora core 2, Python 2.2.3, MySQLdb. Mysql 3.23.58

I googled for hours, but I can't find the answer. I hope ypu can help me.

Thanks in advance.

Arjen

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Re: regarding cgi

[db]

I think you should give another header:
Content-type: text/html

regards Arjen



On Tue, 14 Jun 2005 07:00:09 +0100, praba kar wrote:

> Dear All,
>  
>  I have doubt regarding headers in cgi
> programming. If I gives "Content-Type:text/plain"
> then  I try to print html contents.  Is right or wrong
>  after  giving content-type: text/plain?
>  
> regards
> Prabahar
> 
> 
> 
>   
> ___
> Too much spam in your inbox? Yahoo! Mail gives you the best spam protection 
> for FREE! http://in.mail.yahoo.com

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How do I 'stat' online files?

[DB Daniel Brown]

I am working on a program that needs to stat files (gif, swf, xml, dirs,
etc) from the web. I know how to stat a local file...


import os
tplStat = os.stat(path)

 

but I can't figure out how to stat a file that resides on a web server.
I am not sure if it makes a difference, but most (maybe all) of the
files that I need to stat reside within the same domain that will
generate the request. I am able to open the file by using

 

import urllib

f = urllib.urlopen(url)

 

but for some reason I cannot stat the files. Any help will greatly be
appreciated. Thanks!

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