string.atoi and string.atol broken?

[Mike Moum]

I think there may be a bug in string.atoi and string.atol.  Here's some 
output from idle.

Python 2.3.4 (#2, Jan  5 2005, 08:24:51) 
[GCC 3.3.5 (Debian 1:3.3.5-5)] on linux2
Type "copyright", "credits" or "license()" for more information.


Personal firewall software may warn about the connection IDLE
makes to its subprocess using this computer's internal loopback
interface.  This connection is not visible on any external
interface and no data is sent to or received from the Internet.


IDLE 1.0.4  
import string as s
s.atoi('2',3)
2
s.atoi('4',3)
Traceback (most recent call last):
  File "", line 1, in -toplevel-
s.atoi('4',3)
  File "/usr/lib/python2.3/string.py", line 220, in atoi
return _int(s, base)
ValueError: invalid literal for int(): 4
s.atoi('12',11)
13
s.atoi('13',4)
7
s.atoi('12',4)
6
s.atoi('8',4)
Traceback (most recent call last):
  File "", line 1, in -toplevel-
s.atoi('8',4)
  File "/usr/lib/python2.3/string.py", line 220, in atoi
return _int(s, base)
ValueError: invalid literal for int(): 8

s.atoi('4',3) should result in 11
s.atoi('13',4) should result in 31
s.atoi('12',4) should result in 30
s.atoi('8',4) is legitimate, but it generates an error.
Is this a bug, or am I missing something obvious?
TIA,
Mike
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Re: string.atoi and string.atol broken?

[Mike Moum]

Dennis Benzinger wrote:
Just out of curiosty:
What did you think what atoi does?
I don't understand how you came to expect that atoi('4',3)
should result in 11.
Bye,
Dennis
Mea culpa. For some strange reason, I had it in my mind that atoi would 
take a base ten number as a string and convert it to the correct 
representation in the base of the second argument. In other words, 
atoi('4',3) should take 4 in base 10 and convert it to base 3, resulting 
in 11. Exactly backwords, as atoi('11',3) = 4, that is, 11 base 3 = 4 
base 10.

Thanks to all for setting me straight.
Mike
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Re: Getting a dictionary from an object

[Mike Moum]

Thanos Tsouanas wrote:

I'm not sure what you're getting at, but have you tried this:

class A(object):
 def __getitem__(self, ky):
 return self.__dict__[ky]

for example:
 >>> class A(object):
def __init__(self,a,b,c):
self.a = a
self.b = b
self.c = c
def __getitem__(self, ky):
return self.__dict__[ky]


 >>> a = A(1,2,3)
 >>> a['a']
1
 >>> a['b']
2
 >>>

> Hello.
> 
> I would like to have a quick way to create dicts from object, so that a
> call to foo['bar'] would return obj.bar.
> 
> The following works, but I would prefer to use a built-in way if one
> exists.  Is there one?
> 
> Thanks in advance.
> 
> class dictobj(dict):
> """
> class dictobj(dict):
> A dictionary d with an object attached to it,
>   which treats d['foo'] as d.obj.foo.
> """
> def __init__(self, obj):
> self.obj = obj
> def __getitem__(self, key):
> return self.obj.__getattribute__(key)
> 

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Installing Python on a Windows 2000 Server

[Mike Moum]

Hi,
I'm a civil engineer who also doubles as chief programmer for technical 
applications at my company. Most of our software is written in Visual 
Basic because our VP in charge of I.T. likes to have "consistency", and 
at the moment we're a Microsoft shop. He has assigned me the task of 
developing an new application, the exact nature of which is not 
important for my question. I told him that, in my opinion, that Visual 
Basic was not the best choice for developing this application, and that 
I wanted to use Python. After a bit of discussion of the pros and cons, 
he said to go ahead. I managed to keep my jaw from hitting the floor. :>)

We have a central server array running Windows Server 2000 (I think 
that's the right name; networking is not my specialty, but it's 
definately Windows). Some of our workstations run Windows 2000; others 
run Windows XP Pro. I would like to install Python on the server, and 
run the application that I'll be developing from the workstations, 
without having to install any Python components on the workstations 
themselves. In other words, the Python executable, and the various 
libraries, dll's, and what have you, as well as the application that I'm 
developing, should all reside on the server. The only thing on the 
workstations would be a shortcut to myapplication.py.

Does anyone know whether it is possible to do this? I've done some 
Google searching, with no conclusive results, and poked about on 
python.org, but haven't really been able to find anything. Normally I'd 
be happy to just try it out and see what happens, but we're breaking new 
ground here (this is an amazingly big step for our hide-bound IS 
department!), so I'd like everything to go as smoothly as possible.

TIA,
Mike
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