Marilyn Davis said unto the world upon 2004-12-04 01:37:
Hello Tutors,
I'm having trouble understanding the difference between eval and exec.
Can anyone explain it to me please?
Marilyn Davis
Hi Marilyn,
does this help?
print a
Traceback (most recent call last):
File "", line 1, in -toplevel-
Brian van den Broek said unto the world upon 2004-12-04 04:28:
Marilyn Davis said unto the world upon 2004-12-04 01:37:
Hello Tutors,
I'm having trouble understanding the difference between eval and exec.
Can anyone explain it to me please?
Marilyn Davis
Hi Marilyn,
does this help?
Darn. I l
Kent Johnson said unto the world upon 2004-12-04 06:21:
You are on the right track. Put your common definitions in a
configuration module like this:
# Config.py
arch_data_dir='/home/dave/mygg/gg1.3/arch_data'
data_dir='/home/dave/mygg/gg1.3/data'
Then in client code, import Config. When you use t
Liam Clarke said unto the world upon 2004-12-05 00:31:
RPN calculator, with operators and operands separate? Sounds
counter-intuitive to me.
What's the advantage I'm missing?
P.S.
Hi Liam and all,
Is RPN really written with operators and operands separate? If so, that
is a bit odd. The name, so fa
Kent Johnson said unto the world upon 2004-12-05 06:55:
RPN reverses the order of operator and operand, it doesn't reverse the
whole string. So in Polish Notation 2 + 3 is +23 and (2 + 3) - 1 is
-+231; in RPN they become 23+ and 23+1-
Kent
Hi all,
Thanks Kent, that is what I had assumed it would
Dick Moores said unto the world upon 2004-12-05 11:17:
I'm wondering if my timer3.py could have been written more simply and
easily by using the time or datetime modules to get the number of
seconds separating the time now and the time to which the alarm is set.
IOW, is there an easier way to cal
Dick Moores said unto the world upon 2004-12-05 15:03:
Thanks, Brian. I looked at your code a long time, and also read the
11/26 thread you started. I can see how I could use datetime() and your
t2 - t1 to get the seconds for time.sleep(), but the resulting code I
have in mind is more convolute
Hi all,
in a discussion of security risks with eval() and exec()
Alan Gauld said unto the world upon 2004-12-05 18:41:
Even in a config file, if its plain text a hostile (or just
mischievous) user could add a dangerous line and when you try
to exec it bad things happen. Any time you allow users to
Dick Moores said unto the world upon 2004-12-05 22:02:
Brian van den Broek wrote at 16:53 12/5/2004:
Dick Moores said unto the world upon 2004-12-05 15:03:
Thanks, Brian. I looked at your code a long time, and also read the
11/26 thread you started. I can see how I could use datetime() and
your
Dick Moores said unto the world upon 2004-12-07 07:04:
To Liam and Brian,
Here's Brian's script in it's bare bones, without the input error
checking and his extensive and helpful comments:
===begin code
import datetime
import time
alarm_time = raw_input("Enter ala
Dick Moores said unto the world upon 2004-12-07 12:04:
Brian van den Broek wrote at 07:50 12/7/2004:
It seems I've missed out on something important
BTW I'm not sure you need the +4 of "now.year + 4". I've run this
without the +4 and it doesn't seem to be needed.
Tim Peters said unto the world upon 2004-12-07 11:45:
[Brian van den Broek]
...
Or, so I thought. I'd first tried getting the alarm datetime by simply
taking the date component of datetime.datetime.now() and adding
to the day value. That works fine, provided you are not on the last
day o
Brian van den Broek said unto the world upon 2004-12-07 23:57:
Dick Moores said unto the world upon 2004-12-07 12:04:
The note you reference:
date2 is moved forward in time if timedelta.days > 0, or backward if
timedelta.days < 0. Afterward date2 - date1 == timedelta.days.
timedelta.secon
Dick Moores said unto the world upon 2004-12-12 11:53:
I know how to limit google search results to a single site, but is it
possible to google just one section of a site?
I'd like to be able to search just the 2.4 tutorial,
http://www.python.org/doc/2.4/tut/tut.html
Possible? And if so, how to?
Marc Gartler said unto the world upon 2004-12-14 18:12:
Hi all,
I am fairly new to both Python & programming, and am attempting to
create a function that will test whether some user input is an integer
between 10 and 89, but the check isn't happening...
def check_range(myrange):
if range(myr
Marc Gartler said unto the world upon 2004-12-14 22:13:
I am trying to have a user select from amongst a list of items, and then
make use of that choice later on as both a string (e.g. "you chose
_"). My function currently allows for a numerical choice, but I am
not sure how to return it as
Hi all,
in Marc's check_range thread, I had proposed:
def check_in_range(value):
in_range = False
if 9 < value < 90:
in_range = True
return in_range
and DogWalker suggested the better:
def check_in_range(value):
return 9 < value < 90
As I mentioned, I feel as though I have a
[Brian van den Broek]
import datetime
def is_leap_year(year):
'''-> boolean
Returns True or False as year is, or is not, a leap year.
'''
is_leap = True
try:
datetime.date(year, 2, 29)
except ValueError:
is_leap = False
return i
Liam Clarke said unto the world upon 2004-12-16 02:05:
Alright, so that was a quick example, but
return not x % 2
A light dawns.
On Thu, 16 Dec 2004 15:58:38 +0900, Guillermo Fernandez Castellanos
<[EMAIL PROTECTED]> wrote:
Well...
I find multiple returns to be rather useful
def isOdd(x):
Blake Winton said unto the world upon 2004-12-16 09:20:
Juan Shen wrote:
Yeah, I support Kent. Brian's code is obviously C style, define a
variable and give it an origin value, then use it, modify its value
and so on. If you choose Python, you should adapt to it that variable
needn't to be
Hi all,
A while ago, in a response:
Danny Yoo said unto the world upon 2004-11-29 17:14:
I just got in contact with Nick Parlante of the Nifty Assignments
project; he's been collecting material on fun projects:
http://nifty.stanford.edu/
The projects there look pretty nice. In fact, I'm thinking o
DogWalker said unto the world upon 2004-12-15 00:32:
"Brian van den Broek" <[EMAIL PROTECTED]> said:
Marc Gartler said unto the world upon 2004-12-14 18:12:
Hi all,
I am fairly new to both Python & programming, and am attempting to
create a function that will test whether s
Gregor Lingl said unto the world upon 2004-12-16 04:14:
Brian van den Broek schrieb:
If my original bit of code, the structure was like:
output_value = False
if condition:
output_value = True
return output_value
Mine would be like yours if transformed to:
if condition:
return True
return
Hi all,
instead of sleeping, I've been up all night finally attacking my
apprehension about classes. I think I'm mostly getting the hang of it --
I managed to convert a 300 line procedural script into (what I think is)
a fully object-oriented approach. :-)
I made a lot of use of Mark Pilgrim's Di
he class
(type) of self, finally the base classes. So, in your example, self.foo
is found in the class of bar, while self.ham is found in the base class
of the class of bar.
Kent
Brian van den Broek wrote:
reconstructed it to make sure I had the intent of Guido's point>
Thanks Kent! I
Jacob S. said unto the world upon 2004-12-18 21:06:
I probably wouldn't be any help on projects, but I would probably learn
stuff from it.
I'm okay with it.
Jacob Schmidt
I just got in contact with Nick Parlante of the Nifty
Assignments project; he's been collecting material on fun
projects:
http:
Bugra Cakir said unto the world upon 2004-12-19 10:33:
hi,
I want to create a matrix in Python. For example 3x4 how can i
create this? thanks
___
Tutor maillist - [EMAIL PROTECTED]
http://mail.python.org/mailman/listinfo/tutor
Hi,
at least two ways usin
Alan Gauld said unto the world upon 2004-12-19 12:23:
I'm looking for any good link or tutorial of flow charting
A good resource for all notations related to software design
is at smartdraw.com:
http://www.smartdraw.com/exp/tec/tutorials/software.htm
But flow charts are more generic so info abo
[2, 5, 1, 3],\
... [2, 1, 2, 8] ]
>>> print my_matrix_as_lists[1][1]
5
Rob
On Dec 19, 2004, at 1:31 PM, Brian van den Broek wrote:
Bugra Cakir said unto the world upon 2004-12-19 10:33:
hi,
I want to create a matrix in Python. For example 3x4 how can i
create this? thanks
Hi,
at le
Alan Gauld said unto the world upon 2004-12-20 09:27:
Its another reason why you should never refer to
an object or method *calling* another method
(as Pilgrim does). Rather think of the method
sending a *message* to the self object which
invokes the appropriate method. This decoupling
of message
Alan Gauld said unto the world upon 2004-12-20 15:51:
I hope that short history of OOP clarifies rather than
confuses! :-)
Alan G.
Thanks for that Alan. Seems to clarify thing to me ;-)
Best,
Brian vdB
___
Tutor maillist - [EMAIL PROTECTED]
http://mail
Jacob S. said unto the world upon 2004-12-27 16:31:
I hate to sound weird...
But who are you all, what are you're ages, what do you do, marriage
status, etc? You obviously don't have to answer, I'm just curious who
I'm boldly sending emails to.
Jacob Schmidt
P.S. I'm a student. 14 years. Play the p
Max Noel said unto the world upon 2005-01-02 19:43:
On Jan 2, 2005, at 23:00, Danny Yoo wrote:
(Aside: one nonobvious example where copying can be avoided is in
Conway's
Game of Life: when we calculate what cells live and die in the next
generation, we can actually use the 'Command' design patter
kilovh said unto the world upon 2005-01-03 17:17:
I would like to be able to take an integer, break it down into
individual items in a list, and then put them back together. I know
how to do this last part thanks to Orri Ganel and Guillermo
Fernandex, but what about taking the integer apart?
Sorry
Kooser, Ara S said unto the world upon 2005-01-05 10:15:
This is most likely a silly question and me not understanding python
enough. I am a mentor for some high school kids participating in a
supercomputing challenge. My background in programming is F77 (yeah
laugh it up) and I want the kids to
Danny Yoo said unto the world upon 2005-01-03 04:11:
On Mon, 3 Jan 2005, Brian van den Broek wrote:
(Aside: one nonobvious example where copying can be avoided is in
Conway's Game of Life: when we calculate what cells live and die in
the next generation, we can actually use the 'Comma
Max Noel said unto the world upon 2005-01-06 15:39:
On Jan 6, 2005, at 20:05, Brian van den Broek wrote:
I gave some thought (though produced no code) to the question of how
to do a life game before you [Danny] posted your code. My naive approach
differs a bit, and it seems to me better. I&#
n > self.total_generations:
NameError: name 'self' is not defined
That surprised me -- I'd have guessed that within a class, self was
everywhere defined, and not just within methods.
Clearly, I'm confused about something.
Anyway, thanks for reading. Best to all,
Brian vdB
# pyli
Liam Clarke said unto the world upon 2005-01-20 21:46:
Oops,
and OT ~ Has anyone used Lisp? I've been reading Paul Graham's
essays on how great Lisp is, and how Python is near to implementing
features Lisp had in the 60's. Also found the concept of macros
interesting.
Regards,
Liam Clarke
Hi Li
Srinivas Iyyer said unto the world upon 2005-01-27 01:17:
Dear Jacob, thank you for your suggestion.
however, i think my question was not clear. what i
meant to ask in my previous question was, how to know
which elements repeated and how many times they were
repeated.
while my question was flying
Sean Perry said unto the world upon 2005-01-27 02:13:
And now, for the pedant in me. I would recommend against naming
functions with initial capital letters. In many languages, this implies
a new type (like your Water class). so CombineWater should be combineWater.
Do you mean implies by the domin
Wolfram Kraus said unto the world upon 2005-01-27 03:24:
Brian van den Broek wrote:
Thanks Wolfram,
I knew someone would improve what I posted. (It can always be done ;-)
for i in a_list:
if i in items_dict:
items_dict[i] = items_dict[i] + 1
else
Kent Johnson said unto the world upon 2005-01-27 05:57:
Brian van den Broek wrote:
Wolfram Kraus said unto the world upon 2005-01-27 03:24:
This whole part can be rewritten (without sorting, but in Py2.4 you
can use sorted() for this) with a list comprehension (Old Python2.1
style, with a newer
Kent Johnson said unto the world upon 2005-01-27 16:08:
Brian van den Broek wrote:
Finally, in the first instance, I was aiming for the OP's stated end.
To make this more general and reusable, I think I'd do:
def get_list_dup_dict(a_list, threshold=1):
items_dict
Tony Meyer said unto the world upon 2005-01-27 21:46:
[Sean Perry]
And now, for the pedant in me. I would recommend against naming
functions with initial capital letters. In many languages, this
implies a new type (like your Water class). so
CombineWater should be combineWater.
[Brian van den
Alan Gauld said unto the world upon 2005-01-28 16:28:
So you've been looking at Eiffel then?
:-)
I don't get this joke, but it sounds like the basis for it
would be interesting. Can you explain?
Bertrand Meyer, the inventor of Eiffel uses rich text to display
code in his books. The commercial Ei
jhomme said unto the world upon 2005-02-01 17:15:
Hi, Is it possible to get a copy of the message sent to us when we
first join? I want to follow the links in it so I can learn how to
do the research and ask questions on the list.
Thanks.
Jim
Hi Jim,
I don't still have a copy of my Welcome msg. Bu
Andrew D. Fant said unto the world upon 2005-02-04 18:27:
Alan Gauld wrote:
I said awk was easier to learn but less capable than Perl.
Perl is capable of things that awk can only dream of!
Surely you jest, Alan. :-)
I'm prettry sure he means it. And stop calling him Surely ;-)
Brian vdB
__
Hi all,
I have data files with a format that can be scheamatized as:
File Header Contents
. . .
File Header End Tag
Node Header Contents
. . .
Node Header End Tag
Node Contents
. . .
Node End Tag
[Repeat Node elements until end of file]
I'm refactoring the heck out of a file conversion utility I wr
Danny Yoo said unto the world upon 2005-02-09 19:06:
If we want to be fancy, we can also take advantage of Python's generator
support to avoid constructing an explicit list:
Hi Brian,
Oh good grief. *grin*
That last snippet won't work; I had forgotten about appending lines into
current_node_conte
Johan Geldenhuys said unto the world upon 2005-02-10 00:43:
I am not so clued up on the 'base 2' and 'base 8' stuff.
Care to explain that a little?
Johan
On Tue, 2005-02-08 at 12:12, Pierre Barbier de Reuille wrote:
Hi Johan,
here's a go:
We have 10 fingers. Not coincidentally, we have a base 10 n
Alan Gauld said unto the world upon 2005-02-10 02:58:
The main change in refactoring is moving it to OOP. I have a method
that serves as the entry point for parsing the files.
Not an object? If you are thinking terms of what the methods
do its probably not OOP...
Hi Alan,
That may well be :-) What
Alan Gauld said unto the world upon 2005-02-10 02:58:
class Node:
def __init__(self,lines=[]): # here's the zowie BvdB
self.lines = lines
def append(self,item):
self.lines.append(item)
def parse(self):
#
Alan Gauld said unto the world upon 2005-02-10 02:58:
Pseudo code:
class Body:
def __init__(self,content):
self.contents = contents
self.nodes = []
def parse(self):
for line in self.contents:
if line == NodeStartTag:
Lobster said unto the world upon 2005-02-12 10:34:
Danny Yoo wrote:
On Sat, 12 Feb 2005, Lobster wrote:
Just to nail this issue down: try turning ZoneAlarm off, just for a
moment, and then start up IDLE. (You can always turn ZoneAlarm back on
after this experiment.) If you don't see any proble
Kent Johnson said unto the world upon 2005-02-11 11:34:
Brian van den Broek wrote:
Alan Gauld said unto the world upon 2005-02-10 02:58:
Pseudo code:
class Body:
def __init__(self,content):
self.contents = contents
self.nodes = []
def parse(self
Alan Gauld said unto the world upon 2005-02-12 07:51:
Thanks Alan and Kent for the replies.
I'm responding to a couple of questions Alan asked me about my
problem. I don't think I have any further questions of my own (yet),
though. :-)
Call it node_linkify. The new thought is to create two new
I've combined a few email's worth of quoting as no previous post had
all the elements I wanted to refer to.
Alan Gauld said unto the world upon 2005-02-11 13:30:
>>
>>FOR THE LOVE OF MIKE can someone tell me even one reason why this
>>isn't a misfeature?!?!
>>
>
> Its the only sane way to impleme
Bob Gailer said unto the world upon 2005-02-11 15:34:
At 10:39 AM 2/11/2005, Ryan Davis wrote:
I'm starting to make a code-generation suite in python, customized to
the way we ASP.NET at my company, and I'm having some trouble finding
a good way to organize all the code.
My take on doing that in
jrlen balane said unto the world upon 2005-02-13 11:49:
guys, how would i do this:
i want to read from a text file
the text file should contain should contain data (say, decimal value
from 1-1200). there should be no other type of entry but decimal
it should contain 96 data all in all, with each d
Bob Gailer said unto the world upon 2005-02-13 10:13:
At 03:21 PM 2/12/2005, Brian van den Broek wrote:
[snip]
> I am curious about Bob's "Whenever you find yourself writing
> an if statement ask whether this would be better handled by subclasses."
Thanks Bob and Alan,
Kent Johnson said unto the world upon 2005-02-13 14:04:
Brian van den Broek wrote:
Since you files are quite short, I'd do something like:
data_file = open(thedata.txt, 'r') # note -- 'r' not r
data = data_file.readlines() # returns a list of lines
jrlen balane said unto the world upon 2005-02-13 18:45:
ei guys, chill out!
what if i choose to numbered my data from 1-96 for example. how would
i be able to exclude the numbered part from the data part?
and, mind if I ask, what's a YAGNI by the way?
_
Lobster said unto the world upon 2005-02-14 13:32:
>> - I am trying to call up an external program
>> with something like a "Shell" command - can not find a way of doing
>> this
>> (in windows)
>>
>> Any hints?
What about os.system('your_command_here')?
=
That is a good tip and seems t
Hi all,
I'm still plugging away at my project of writing code to process
treepad files. (This was the task which I posted about in the recent
"help with refactoring needed -- which approach is more Pythonic?"
thread.)
My present problem is how best to reorganize a long (20 elements) elif
chain
Liam Clarke said unto the world upon 2005-02-15 18:08:
Hi Brian, why not take it the next step and
for key in metadata_dict:
if data.startswith(key):
exec('''self.%s = """%s"""''' %(metadata_dict[key],
data[len(key):]))
# tripl
Jeff Shannon said unto the world upon 2005-02-15 21:20:
On Tue, 15 Feb 2005 17:19:37 -0500, Brian van den Broek
<[EMAIL PROTECTED]> wrote:
My Node class defines a _parse method which separates out the node
header, and sends those lines to a _parse_metadata method. This is
where the elif
Kent Johnson said unto the world upon 2005-02-16 05:58:
Brian van den Broek wrote:
Also, I know the general security concerns about things like exec.
They make me nervous in using it, even though I am (as yet) the sole
user. Am I right in thinking that the constrained way I am using it
here
Brian van den Broek said unto the world upon 2005-02-16 14:04:
Kent Johnson said unto the world upon 2005-02-16 05:58:
if 'text' == self.document_type:
self.do_text_stuff()
if 'RTF' == self.document_type:
self.do_RTF_stuff()
Conditionals on a 'type' flag are a
Kent Johnson said unto the world upon 2005-02-16 15:02:
Brian van den Broek wrote:
I had been thinking better to get everything working and then
refactor. Is that an unsound approach? My worry about refactoring now
is that I feel like I am rearranging deck-chairs when I should be
worried about
Jeff Shannon said unto the world upon 2005-02-16 16:09:
On Tue, 15 Feb 2005 23:48:31 -0500, Brian van den Broek
<[EMAIL PROTECTED]> wrote:
Yes, if you know that you will only have one header per line, then
it's reasonable to process them one line at a time. You could
alternative
Terry Carroll said unto the world upon 2005-02-16 16:18:
On Fri, 11 Feb 2005, Bob Gailer wrote:
Whenever you find yourself writing an if statement ask whether this
would be better handled by subclasses. Whenever you find yourself about
to write a global statement, consider making the variables pro
jrlen balane said unto the world upon 2005-02-17 02:41:
sir, what seemed to be the problem with this:
def process(list_of_lines):
data_points = []
for line in list_of_lines:
data_points.append(int(line))
return data_points
data_file = open('C:/Documents and Settings/nyer/Desktop
Brian van den Broek said unto the world upon 2005-02-17 03:51:
jrlen balane said unto the world upon 2005-02-17 02:41:
sir, what seemed to be the problem with this:
Hi,
I think the traceback is my fault from an oversight in the code I sent
you when you posted before. Sorry about that :-[
In
Brian van den Broek said unto the world upon 2005-02-17 03:51:
> jrlen balane said unto the world upon 2005-02-17 02:41:
sir, what seemed to be the problem with this:
def process(list_of_lines):
data_points = []
for line in list_of_lines:
data_points.append(int(line))
ret
Chris Bromley said unto the world upon 2005-02-17 11:05:
Prior to running the script I use the check button in the
PythonWin and the scripts syntax is fine. When I run the script
though, the message
Script C:\ dBase_File_To_Shapefile.py returned exit code 0
appears in the status bar at the
Bill Mill said unto the world upon 2005-02-18 20:29:
On Fri, 18 Feb 2005 17:20:03 -0800 (PST), Terry Carroll <[EMAIL PROTECTED]>
wrote:
On Thu, 17 Feb 2005, Jeff Shannon wrote:
On Thu, 17 Feb 2005 15:54:43 -0800 (PST), Terry Carroll <[EMAIL PROTECTED]>
wrote:
Interesting -- I prefer the CHM (Win
. Sm0kin'_Bull said unto the world upon 2005-02-19 16:15:
I want to make caculator program which enables me to
enter 2numbers and mathsmatics sign and calculates it.
I think this is too difficult for newbie like me...
Please input data
Number1:
Mathsmetics Sign:
Number2:
(Number1) (Sign) (Number2)
Hi all,
I am still building my toolset for working with treepad files. (This
is the one all my recent posts concerning Node classes have been about.)
I am exploring ways of having the methods of a sub-class insert
additional logic into their version of a class's methods, while still
running the
Kent Johnson said unto the world upon 2005-02-21 16:40:
Brian van den Broek wrote:
I am exploring ways of having the methods of a sub-class insert
additional logic into their version of a class's methods, while still
running the original class's method logic.
All code below is pseud
Hi all,
I'm trying to figure out how to subclass the list built-in.
.>>> class my_list(list):
def __init__(self, sequence=None):
list.__init__(self, sequence)
self.spam = 1
.>>> mine = my_list((1,2,3,4))
.>>> mine.append(42)
.>>> mine
[1, 2, 3, 4,
Karl Pflästerer said unto the world upon 2005-02-22 07:53:
On 22 Feb 2005, [EMAIL PROTECTED] wrote:
I'm trying to figure out how to subclass the list built-in.
.>>> class my_list(list):
def __init__(self, sequence=None):
list.__init__(self, sequence)
self.spam = 1
Hi all,
I just ran a program of mine and got the traceback:
Traceback (most recent call last):
File "C:\PYTHON24\lib\idlelib\rpc.py", line 233, in asyncqueue
self.putmessage((seq, request))
File "C:\PYTHON24\lib\idlelib\rpc.py", line 333, in putmessage
raise IOError
IOError
This stumps
Kevin said unto the world upon 2005-03-04 10:43:
Hello all. I have just completed my very first python program just a
simple number guessing. I would like for someone to try it out if they
could and let me know how I did with it and where I could have
improved apon it. There are t files main.py and
Adam Cripps said unto the world upon 2005-03-06 02:38:
On Fri, 04 Mar 2005 12:14:28 -0500, Brian van den Broek
<[EMAIL PROTECTED]> wrote:
Kevin said unto the world upon 2005-03-04 10:43:
Hello all. I have just completed my very first python program just a
simple number guessing. I would li
Danny Yoo said unto the world upon 2005-03-11 16:07:
On Fri, 11 Mar 2005 [EMAIL PROTECTED] wrote:
When we ask: "Is the number 'one' greater than the number 'two'?", Python
is telling us "No!" by giving us back the value 'False'. Whenever we ask
Python a question that's a yes/no sort of thing, Pyt
[EMAIL PROTECTED] said unto the world upon 2005-03-11 19:00:
Ok some thing is messed up.. when i try to open the python shell i get a
error meesage saying socket error:connection refused and the head line at the
top says IDLE subprocess error.. and then the python shell pops up with a
e
[EMAIL PROTECTED] said unto the world upon 2005-03-11 20:21:
ok i just restarted my pc and it works now thank you ..ok when i go to the
start menu then go to all programs then to python 2.4 it gives me five things ok
it says IDLE (python GUI)
Module Docs
python (command line)
python manuals
unins
Ralfas Jegorovas said unto the world upon 2005-03-11 20:33:
Hi everyone,
I would like to know if it is possible to install python on a usb device
and run it. I found some references to this topic in the archives but I
didnt find the information conclusive. Any information would be
appreciated.
Mark Kels said unto the world upon 2005-03-12 08:04:
Hi list ! I want to know whats so great in OOP... I have learned
some of it, but I don't understand why everybody like it so much...
Can anyone give me an example for a task that could be done only
with OOP or will be much simpler to do with it
Sean Perry said unto the world upon 2005-03-13 02:49:
Brian van den Broek wrote:
1) Namespace issues
With procedural (or imperative -- don't know which is the right terms
for non-OOP code which employs functions) code, you can have issues
caused by namespaces. Just yesterday, someone on the
jrlen balane said unto the world upon 2005-03-13 19:37:
so for example, i am creating a text file with file.write()
how am i going to make the file a tab-delimited file??? any
parameters needed???
>>> record1 = ['Foo', 'Bar', 'Baz']
>>> record2 = ['Ham', 'Spam', 'Eggs']
>>> records = [record1, reco
[EMAIL PROTECTED] said unto the world upon 2005-03-14 19:28:
I have read but don't under stand how to use pydoc. here what i
read can't figer out how to use it.
Hi,
try this:
Fire up IDLE and your web browser of choice.
In IDLE's shell, type:
import HTMLParser
There is nothing special about the
[EMAIL PROTECTED] said unto the world upon 2005-03-15 04:16:
ok thanks for the help but i did what you said and heres what i got don't
know exactly what i got but here lol
will you help me figer what i got out and the module docs dose not work whem
i go to the browser in opens a window sayi
Colin Corr said unto the world upon 2005-03-16 01:38:
Greetings Tutors,
I am having some difficulties with the concept of functions which can
accept an unnamed number of arguments. Specifically, when trying to
write a function that deals with an unnamed number of dictionaries. I
want to be able to
Hi all,
I'm uncertain of how to make use of OOP design across multiple
modules. (Actually, on reflection, I'm not certain the multiple
modules aspect is central.) I'm also uncertain of how to frame the
question well, so please bear with me :-)
A schematic of what I have (with fake names for eas
Hi all,
Thanks for the reply, Lloyd.
Lloyd Kvam said unto the world upon 2005-03-17 20:36:
You want a method in a base class to parse input and create instances of
certain derived classes.
Not quite. One class (Tree) parses a file and creates instances of
Node1 and Node2 (derived from Node). None o
Kent Johnson said unto the world upon 2005-03-17 20:44:
Brian van den Broek wrote:
A schematic of what I have (with fake names for ease of example) is a
base module Toolkit.py and I want to write a module Application.py
which specializes the behaviour of the Toolkit.py classes. (I'm using
Kent Johnson said unto the world upon 2005-03-18 07:35:
Brian van den Broek wrote:
Kent Johnson said unto the world upon 2005-03-17 20:44:
The multiple inheritance from MyNode and Toolkit.NodeX is a smell. I
guess you do this because you want to override methods of
Toolkit.Node as well as
Gregor Lingl said unto the world upon 2005-03-18 19:57:
Hi Danny!
Preliminary remark: I know that "beautiful" and "beauty"
are concepts very seldom applied to computer programs or
programming languages. I suppose mainly because they are
to a large extent a matter of taste ...
Hi Gregor and all,
Tho
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