Re: re.sub do not replace portion of match

[J Wolfe]

Thanks Duncan,

I did look at that, but it was kinda greek to me.  Thanks for pulling
out the part I was looking for that should do the trick.

Jonathan

> http://www.python.org/doc/current/library/re.html#re.sub
>
> > Backreferences, such as \6, are replaced with the substring matched by
> > group 6 in the pattern.


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re.sub do not replace portion of match

[J Wolfe]

Hi,

Is there a way to flag re.sub not to replace a portion of the string?

I have a very long string that I want to add two new line's to rather
than one, but keep the value X:

string = "testX.\n.today"  <-- note X is a value
string = re.sub("testX.\n.","testX.\n\n.", string)

This just replaces X with the replacement string.

Thanks,
Jonathan
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Tkinter -- the best way to make a realtime loop

[J Wolfe]

What's the best way to make a realtime loop in Tkinter?  I know in
perl you can use "repeat" and it will call a function every x seconds,
in python it seems like "after" may be the equivalent though it
doesn't seem to behave like the perl repeat function. Any ideas?

Thanks,
Jonathan
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Re: Tkinter -- the best way to make a realtime loop

[J Wolfe]

Thank you both for your replies.  I had something similar to this:

def incr():
  var.set(1 + var.get())
  root.after(1000, incr)

except I had an extra set of parenthesis...
def incr():
  var.set(1 + var.get())
  root.after(1000, incr())

on the function which was screwing it up. Also needed to have a
root.update() to refresh the GUI.

Thanks again,
Jon
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Re: sort values from dictionary of dictionaries python 2.4

[J Wolfe]

On Nov 9, 2:27 pm, Peter Otten <__pete...@web.de> wrote:
> J Wolfe wrote:
> > I would like to sort this dictionary by the values of the inner
> > dictionary ‘ob’ key.
>
> Python's built-in dictionary is unsorted by design.
>
>
>
> > mydict =
> > {’WILW1′: {’fx’: ‘8.1′, ‘obtime’: ‘2009-11-07 06:45:00′, ‘ob’: ‘6.9′},
> > ‘GRRW1′: {’fx’: ‘12.8′, ‘obtime’: ‘2009-11-07 04:15:00′, ‘ob’: ‘6.7′},
> > ‘NASW1′: {’fx’: ‘6.8′, ‘obtime’: ‘2009-11-07 06:30:00′, ‘ob’: ‘7.1′}
> > }
>
> > In this case, this would become:
>
> > mysorteddic =
> > {’NASW1′: {’fx’: ‘6.8′, ‘obtime’: ‘2009-11-07 06:30:00′, ‘ob’: ‘7.1′},
> > ‘WILW1′: {’fx’: ‘8.1′, ‘obtime’: ‘2009-11-07 06:45:00′, ‘ob’: ‘6.9′},
> > ‘GRRW1′: {’fx’: ‘12.8′, ‘obtime’: ‘2009-11-07 04:15:00′, ‘ob’: ‘6.7′}
> > }
>
> > I have had no luck in trying to figure this out. I am restricted to
> > using python 2.4.3.
>
> > Any help would be appreciated!
>
> You may be able to work around that limitation by putting the dict items
> into a list and sort that:
>
> >>> for item in sorted(mydict.items(), key=lambda (k, v): float(v["ob"]),
>
> reverse=True):
> ...     print item
> ...
> ('NASW1', {'fx': '6.8', 'obtime': '2009-11-07 06:30:00', 'ob': '7.1'})
> ('WILW1', {'fx': '8.1', 'obtime': '2009-11-07 06:45:00', 'ob': '6.9'})
> ('GRRW1', {'fx': '12.8', 'obtime': '2009-11-07 04:15:00', 'ob': '6.7'})
>
> Peter

Thanks Peter, That worked! :-)
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Print to Printer Tkinter Text

[J Wolfe]

Hi,

Is there a way to print the format of a Tkinter text box to a color
printer with its tags, e.g. a blue text at font size 18 and bold will
like it displays?

Thanks,
Jonathan
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frames in toplevel Tkinter

[J Wolfe]

Probably a stupid question, but can you have a frames in a toplevel
widget? Anything I try to put in a frame goes back to the main or root
widget and not the toplevel or pop-up widget.

Thanks for the help!
Jonathan
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Re: frames in toplevel Tkinter

[J Wolfe]

On Dec 16, 11:09 pm, J Wolfe  wrote:
> Probably a stupid question, but can you have a frames in a toplevel
> widget? Anything I try to put in a frame goes back to the main or root
> widget and not the toplevel or pop-up widget.
>
> Thanks for the help!
> Jonathan

Thank you John,

from Tkinter import *
root = Tk()
Label(root, text='This is the root window').pack()
top = Toplevel(root)
fr = Frame(top)   # frame child of Toplevel called top
fr.pack()
Label(fr, text='This is in a frame in the Toplevel window').pack()
root.mainloop()

I swear I tried that about 20 times yesterday...and it kept putting it
in my main window.  Perhaps I had a naming issue.

Thanks!
Jonathan
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ScrolledText get xy index of rowheader component?

[J Wolfe]

Hi,

I tried to get the xycoordinate of a click of the rowheader column of
Pmw's ScrolledText...and it returns the xycoordinate of the text
portion...even though I supplied it with the rowheader component.

self.scrolledtext.component('rowheader').index("@%d,%d" %
(event.x,event.y))

What am I doing wrong?

the call to my main scrolledtext looks something like this...

self.scrolledtext.index("@%d,%d" % (event.x,event.y))

and works as intended.

Jonathan
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Re: ScrolledText get xy index of rowheader component?

[J Wolfe]

Nevermind I figured it out...

I set self.dummyvar = self.scrolledtext.component('rowheader')

and then did something like so self.dummyvar.index("@%d,%d" %
(event.x,event.y))

not sure why it worked like that...but it did :-)
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passing menu label to function

[J Wolfe]

Hi,

I would like to pass the label name of a menu to the command it is
calling, is that possible?

self.menuitem.menu.add_command(label="pass this",command = lambda i =
self.self.menuitem.menu.cget("label"): self.function(i))

def function(self, i)
 print i   # print the label name


Any help would be appreciated!
Thanks!
Jonathan
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Re: passing menu label to function

[J Wolfe]

Thanks Peter,

I figured out an alternative just as you posted your response,

I just looped through the buttons I wanted to add and used the loop
variable to label the item and then passed it to the function, though
your way seems much more robust.

Thanks a lot!
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Pmw optionmenu color

[J Wolfe]

Hello,

It seems like this should be easy to do... change the background color
of the Pmw optionmenu.  I have not been able to find this. Anyone have
a hint or know how to do this?

Thanks,
Jonathan
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How do you implement a Progress Bar

[J Wolfe]

I would really appreciate some help with this.  I'm fairly new to
using classes...What am I doing wrong? All I get is a blank window. I
can't seem to figure out how to initialize this Progress Bar.

Thanks,
Jonathan



##file Meter.py
from Tkinter import *

class Meter(Frame):
'''A simple progress bar widget.'''
def __init__(self, master, fillcolor='orchid1', text='',value=0.0,
**kw):
Frame.__init__(self, master, bg='white', width=350,height=20)
self.configure(**kw)
self._c = Canvas(self, bg=self['bg'],width=self['width'],
height=self['height'],highlightthickness=0, relief='flat',bd=0)
self._c.pack(fill='x', expand=1)
self._r = self._c.create_rectangle(0, 0, 0, int(self['height']),
fill=fillcolor, width=0)
self._t = self._c.create_text(int(self['width'])/2,
int(self['height'])/2, text='')
self.set(value, text)

def set(self, value=0.0, text=None):
#make the value failsafe:
if value < 0.0:
value = 0.0
elif value > 1.0:
value = 1.0
if text == None:
#if no text is specified get the default percentage string:
text = str(int(round(100 * value))) + ' %'
self._c.coords(self._r, 0, 0, int(self['width']) * 
value,
int(self['height']))
self._c.itemconfigure(self._t, text=text)



root=Tk()
f=Meter(root)
for i in range(100):
f.set(i,"Hello")
print i
mainloop()
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