I am using the tkinter toolkit. Just wish to have the button I have
formedreplaced by the Enter key - if possible. Would the raw_input()
work, asBernard has suggested, or do I need another piece of code that
refers to theEnter key?Thanks. Diana- Original Message -
From: "Kent John
From: "Alan Gauld" <[EMAIL PROTECTED]>
With other words I'd like to tell Python: Convert into a float if
possible, otherwise append anyway.
[ (type(x) == type(5) and float(x) or x) for x in mylist ]
This is a perfect opportunity to give the reminder that the conversion
functions are also types tha
On Tue, 05 Apr 2005 10:56:40 +1200 (NZST)
[EMAIL PROTECTED] wrote:
> Fine, but always test the simplified version, unless you're
> absolutely certain what you're throwing out!
Point taken.
> When you do 'A + [4, 5, 6]', python first calls
> A.__getattr__('__coerce__').
Everything's working fine
Hi John,
Certainly, I will check it out.
Many thanks!
Hoffmann
--- John Carmona <[EMAIL PROTECTED]> wrote:
> Dear Hoffmann, I am also a Newbie and I am currently
> going through "A Byte
> of Python" tutorial from Swaroop C H.
>
>
http://www.byteofpython.info/download?PHPSESSID=c0d52343d90f69f25
On Apr 4, 2005 10:54 PM, Nick Lunt <[EMAIL PROTECTED]> wrote:
> I've gotten into the habit of just using the os.?_OK stuff.
>
> eg
>
> >>> import os
> >>> os.access('/', os.W_OK)
> False
> >>> os.access('/tmp', os.W_OK)
> True
>
> Thats gotta be simple if I understand it lol :)
>
> Nick .
>
I
On Apr 4, 2005 10:43 PM, Alan Gauld <[EMAIL PROTECTED]> wrote:
>
> Its not really the simplest, its not efficient and it might be
> dangerous
> if the file is not empty. At the very least open using 'a' to avoid
> obliterating the file!!
>
> However the os.stat function and stat module do what yo
Quoting Kevin Reeder <[EMAIL PROTECTED]>:
> On Mon, 04 Apr 2005 21:14:21 +1200
> John Fouhy <[EMAIL PROTECTED]> wrote:
> > Are you sure you've giving us all the code?
> No, I was trying to keep it simple. Anyway, here it is,
Fine, but always test the simplified version, unless you're absolutely c
[(eval(compile('exec """try:t=float("%s")\nexcept:t="%s" """ in
globals(),locals()'%(s,s),'','exec')),t)[1] for s in l]
Now that's ugly.
On Apr 5, 2005 9:51 AM, Alan Gauld <[EMAIL PROTECTED]> wrote:
> > With other words I'd like to tell Python: Convert into a float if
> > possible, otherwise ap
Quoting Andrei <[EMAIL PROTECTED]>:
> You could do (I'll use 20 instead of 72 to keep it readable):
>
> >>> s = "%20s" % "xyz"
> >>> len(s), s
> (20, ' xyz')
>
> or:
>
> >>> s = "xyz"
> >>> s = s + (20 - len(s)) * ' '
> >>> s, len(s)
> ('xyz ', 20)
Just a comment ---
You can do the second exa
I've gotten into the habit of just using the os.?_OK stuff.
eg
>>> import os
>>> os.access('/', os.W_OK)
False
>>> os.access('/tmp', os.W_OK)
True
Thats gotta be simple if I understand it lol :)
Nick .
Alan Gauld wrote:
The simplest, IMHO, is :
try:
f = file(filename, "w")
[...]
except IOError:
> With other words I'd like to tell Python: Convert into a float if
> possible, otherwise append anyway.
[ (type(x) == type(5) and float(x) or x) for x in mylist ]
Should do it...
Alan G.
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> The simplest, IMHO, is :
>
> try:
>f = file(filename, "w")
>[...]
> except IOError:
>print "The file is not writable"
>
> Of course, not that this method empty the file if it is writable !
The
> best is to just put your IO code in such a try block ... That way,
> you're sure the file
Diana Hawksworth wrote:
> At the moment I have some user input tied to a button that allows the
input to be "submitted" and then an answer is supplied. How can I get
rid of this submit button, and have the user just press the "enter" key
and have the same result happen?
How is the user interfac
gerardo arnaez wrote:
Hi all. I would like to post the very small py files I have written
while doing this.
Would anyone object.
I think at most there be 20 lines of code all the files put together.
I woul dlike to hear some crituqe on them
That's no problem, for 20 lines just put it in the body o
Hello list!
At the moment I have some user input tied to a button
that allows the input to be "submitted" and then an answer is supplied.
How can I get rid of this submit button, and have the user just press the
"enter" key and have the same result happen?
TIA. Diana
___
Hi all. I would like to post the very small py files I have written
while doing this.
Would anyone object.
I think at most there be 20 lines of code all the files put together.
I woul dlike to hear some crituqe on them
Thanks
On Apr 4, 2005 11:08 AM, Christopher Smith <[EMAIL PROTECTED]> wrote:
>
You can chop off anything past 72 characters with:
s2 = s[:72]
On Apr 4, 2005, at 7:04 AM, Vines, John (Civ, ARL/CISD) wrote:
Hello. I have a question regarding strings. How do I format a string
to be a specific length?
For example I need 'string1' to be 72 characters long.
Thanks for your time,
On Apr 4, 2005, at 16:04, Vines, John (Civ, ARL/CISD) wrote:
Hello. I have a question regarding strings. How do I format a string
to be a specific length?
For example I need 'string1' to be 72 characters long.
Thanks for your time,
John
You can use the string methods ljust, rjust and zfill:
On Apr 1, 2005, at 4:12 PM, Jeff Shannon wrote:
At the OS level, these two actions are *completely* different. The
webbrowser module launches an entirely separate program in its own
independent process, where the "file browser" is opening a standard
dialog inside of the current process and depende
Vines, John (Civ, ARL/CISD) wrote on Mon, 4 Apr 2005 10:04:59 -0400:
> Hello. I have a question regarding strings. How do I format a string to be a
> specific length?
> For example I need 'string1' to be 72 characters long.
You could do (I'll use 20 instead of 72 to keep it readable):
>>> s =
Hello. I have a question regarding strings. How do I format a string to be a
specific length?
For example I need 'string1' to be 72 characters long.
Thanks for your time,
John
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On Monday, Apr 4, 2005, at 05:01 America/Chicago,
[EMAIL PROTECTED] wrote:
Would I used an if else: construction to determine where the INR value
lay and decide what precentage to increase it by?
Yes, that seems to be the right way to do that. The caveat is that
when you are using boolean tests
Christian Meesters wrote on Mon, 4 Apr 2005 14:49:28 +0200:
> Could it be that a C-like solution with
> '?' and ':' is more straightforward than a solution with Python or am I
> just too blind to see a real pythonic solution here?
Pierre did the Python equivalent of the ternary operator in his
On Mon, 04 Apr 2005 21:14:21 +1200
John Fouhy <[EMAIL PROTECTED]> wrote:
> Are you sure you've giving us all the code?
No, I was trying to keep it simple. Anyway, here it is,
class MyList:
def __init__(self, start):
self.wrapped = [ ]
for x in start: self.wrapped.append(x)
Mmmhhh ... not strictly one line but ...
import re
float_str = re.compile(r"^\s*[+-]?(\d+(\.\d*)?|\.\d+)([eE][+-]?\d+)?\s*$")
val = [ ( (float_str.match(s) and [float(s)]) or [s])[0] for s in l2 ]
It's not really "readable" but well ... it works ^_^
Pierre
Christian Meesters a écrit :
Hi
Yesterday
Christian Meesters wrote:
Hi
Yesterday night I was thinking about the following problem: I do have
a list like l = ['1','2','3','abc','','4'] - for instance like a list
one could get from a file import with the csv module (which is where
my 'problem' comes from). Now I would like to generate the fo
Hi
Yesterday night I was thinking about the following problem:
I do have a list like l = ['1','2','3','abc','','4'] - for instance
like a list one could get from a file import with the csv module (which
is where my 'problem' comes from). Now I would like to generate the
following list, preferabl
Kevin Reeder wrote:
This is not my code but is taken from the book I'm working with. My
problem is that whenever I call to the __add__ method the counters
increase by 2 while calls the __len__ method increase the counters
by 1 as expected.
Well, I can't duplicate your results.. I get the behaviou
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