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Search: Posts Made By: vegaseat
Forum: Python 1 Day Ago
Replies: 3
Views: 164
Posted By vegaseat
Something like this ...

from Tkinter import *

def exit():
# do cleanup code here
pass

root = Tk()
# respond to window title bar x click
Forum: Python 2 Days Ago
Replies: 5
Views: 175
Posted By vegaseat
To approximate for instance the sine of x (x in radians) you can use the Taylor series expansion:
x - x**3/3! + x**5/5! - x**7/7! + ...

However, to get even a remotely accurate number the cutoff...
Forum: Python 3 Days Ago
Replies: 5
Views: 162
Posted By vegaseat
Ouch!!!!!!!
A couple of hints ...

you still have to start with one function call from main

you need to pass your arguments to and from your functions

variable, function and class names are...
Forum: Python 3 Days Ago
Replies: 15
Solved: Scorecard
Views: 361
Posted By vegaseat
For old stuff like that I recommend a careful study of the source of graphics.py you can get it from:
http://mcsp.wartburg.edu/zelle/python/graphics.py
Also study the elaborate documentation from:...
Forum: Python 4 Days Ago
Replies: 6
Solved: Temperture
Views: 233
Posted By vegaseat
Python relies on indentations for it's code blocks. Other computer languages use braces, begin, end and so on. So yes, if you want to code in Python, then poorly done indentations can be a real...
Forum: Python 4 Days Ago
Replies: 9
Solved: IDE for PyQt..
Views: 314
Posted By vegaseat
To my knowledge the latest release version of PyQT is 4.6, so I doubt that any IDE will work on code completion for your super advanced version (4.9 ?).
Forum: Python 5 Days Ago
Replies: 10
Views: 285
Posted By vegaseat
According to your code fname is just the filename and b is the full pathname. Still, it will work with os.rename(fname, b).

My question was, what happens if someone enters a directory like this:...
Forum: Python 5 Days Ago
Replies: 9
Solved: IDE for PyQt..
Views: 314
Posted By vegaseat
I tried the latest version of Eric (4.3.9). It assiste with PyQT syntax, but does not accept the newer connect style used with PyQT 4.5+. Somewhat irritating!
Forum: Python 5 Days Ago
Replies: 10
Views: 285
Posted By vegaseat
I modified the program slightly for testing, but this work just fine ...
#!/usr/local/bin/python

import re, os
from os.path import join as pjoin, isdir

while True:
#targetfolder =...
Forum: Python 6 Days Ago
Replies: 2
Solved: __str__
Views: 152
Posted By vegaseat
__str__() does operator overloading in a class and "hijacks" str() in any class instance operation that uses str(). So print crit1 will use it, because it uses str() to make it printable. Whereas...
Forum: Python 6 Days Ago
Replies: 3
Solved: string.split()
Views: 170
Posted By vegaseat
You are using old style Python code! Long ago it used to be like this ...
import string

a = "Why does string.split() not work?"
x = string.split(a)
print("SUCCESS!", x)
... now it's like this...
Forum: Python 6 Days Ago
Replies: 10
Views: 330
Posted By vegaseat
You can use function exec() ...
# create variables num1, num2, num3 and num4 and set to 77
for n in range(1, 4):
exec( "%s = %d" % ('num' + str(n), 77) )

print(num1) # 77
print(num3) #...
Forum: Python 6 Days Ago
Replies: 1
Views: 324
Posted By vegaseat
Take a look at the example at:
http://www.daniweb.com/forums/post1056184.html#post1056184
Forum: Python 7 Days Ago
Replies: 9
Views: 309
Posted By vegaseat
Will be less complex with a for loop and range(start, end, step) starting at the high value, ending at the low value (exclusive) and stepping -1 ...
n = 3
for x in range(n, 0, -1):
print...
Forum: Python 7 Days Ago
Replies: 10
Views: 452
Posted By vegaseat
I assume the question is:
Who is foolish enough to do my homework for me?
Forum: Python 7 Days Ago
Replies: 3
Views: 174
Posted By vegaseat
Also take a look at:
http://www.daniweb.com/forums/post1055261.html#post1055261
for a mildly more general version.
Forum: Python 7 Days Ago
Replies: 10
Views: 340
Posted By vegaseat
You have to put your increase calculation in the loop.
Forum: Python 8 Days Ago
Replies: 6
Views: 243
Posted By vegaseat
No need to be sorry, that kind of thing happens easily on any forum.
Forum: Python 8 Days Ago
Replies: 6
Views: 243
Posted By vegaseat
When you use a.extend(b) or a.sort() then list a is changed, since both are inplace functions. Also when you pass a list to a function argument, be aware that the list is a mutable object and...
Forum: Python 10 Days Ago
Replies: 3
Views: 246
Posted By vegaseat
If you make the regular polygon a square with side length = 1.0, you should get an area of 1.0. A simple test to see if the area formula is correct.
Forum: Python 10 Days Ago
Replies: 4
Views: 210
Posted By vegaseat
You can play with this ...
# test Python command line arguments

import sys

if (len(sys.argv) >= 2):
# skip sys.argv[0]
commandline_args = sys.argv[1:]
print( commandline_args )
Forum: Python 10 Days Ago
Replies: 3
Views: 370
Posted By vegaseat
If you have a dictionary in your program and want to save and later reload it as a dictionary object, you have to use module pickle. Here is an example ...
# use module pickle to save/dump and load...
Forum: Python 11 Days Ago
Replies: 5
Views: 252
Posted By vegaseat
A dictionary will serve you better ...
# create a large number of spheres referencing them
# with a (x, y):sphere_object dictionary pair

import visual as vs

spheres = {}
for x in range (0,...
Forum: Python 12 Days Ago
Replies: 8
Views: 313
Posted By vegaseat
I assume your error is here ...
def print_list(names):
print 'Here are the names in the original order:'
for names in name_list: # <--------
print names
names.sort()
...
Forum: Python 12 Days Ago
Replies: 9
Views: 293
Posted By vegaseat
Python3 will tolerate adding (object) to your class for a while at least.
After that just write a little Python utility that removes it.
Forum: Python 12 Days Ago
Replies: 4
Views: 220
Posted By vegaseat
Here is the story:

In Python2 Tkinter is a Python module file named Tkinter.py a wrapper for the TCL code Tkinter is written in.

With the advent of Python3 Tkinter became a more modern package...
Forum: Python 12 Days Ago
Replies: 6
Solved: While loop
Views: 280
Posted By vegaseat
If you want to start with the population after 1/2 year, then every year you have to change your code to this (Python2 or Python3) ...
def populationGrowth():
x = int(input("What is the current...
Forum: Python 12 Days Ago
Replies: 5
Views: 225
Posted By vegaseat
In this case you have to create a new parent frame (size it for the image) for wx.StaticBitmap(frame, wx.ID_ANY, image)

Would be nice if I could test it out, but I simply don't have all the...
Forum: Python 12 Days Ago
Replies: 5
Views: 225
Posted By vegaseat
Try something like this ...
#plt.show()
plt.savefig("test.png")

# create an internal image
image = wx.Bitmap("test.png")
# show the image as static...
Forum: Python 13 Days Ago
Replies: 5
Views: 234
Posted By vegaseat
Why don't you just run the sample code I gave you with the image_file = "mars.jpg" and make sure you have the image file in the working directory or give it the full path.

Avoid the crap you added...
Forum: Python 13 Days Ago
Replies: 5
Views: 253
Posted By vegaseat
First of all, do not call your function sum because there is already a built-in Python function sum() that will sum up the numbers in a numeric list. This also gives you the hint how to solve your...
Forum: Python 13 Days Ago
Replies: 2
Solved: Center Text
Views: 403
Posted By vegaseat
Use something like that ...
s = "My Title"
width = 70
s = s.center(width)

print( s )
Forum: Python 13 Days Ago
Replies: 5
Views: 232
Posted By vegaseat
os.path.exists(filename) will return True or False.
Forum: Python 13 Days Ago
Replies: 5
Views: 234
Posted By vegaseat
Pygame can load quite a number of image formats. Here is an example ...
# experiments with module pygame
# free from: http://www.pygame.org/
# load and display an image using pygame

import...
Forum: Python 13 Days Ago
Replies: 5
Views: 231
Posted By vegaseat
I trust that by now you have figured out that names in Python are case sensitive.
Forum: Python 14 Days Ago
Replies: 9
Views: 293
Posted By vegaseat
Correct. Don't you admire the beauty of Python version changes? Right out of a Monty Python show!

Actually, most computer languages have had their fair share of version changes, they are always...
Forum: Python 14 Days Ago
Replies: 5
Views: 232
Posted By vegaseat
There are certain characters a file name can not have, might depend on the OS. On Unix you have to have permission to write to some of the directories.
Forum: Python 14 Days Ago
Replies: 9
Views: 293
Posted By vegaseat
The use of the new style class had a practical implication, it allowed the use of __slots__ as shown in this example ...
class Oldstyle:
def __init__(self):
self.a = 1
self.b...
Forum: Python 16 Days Ago
Replies: 5
Views: 265
Posted By vegaseat
Another way to solve this is to use string function isdigit() ...
while True:
num = raw_input("Enter an integer: ")
if num.isdigit():
num = int(num)
break
print "Try...
Forum: Python 16 Days Ago
Replies: 7
Views: 227
Posted By vegaseat
You need to test the logic in your if statements like
if mystr in accepted:
Here is a little test ...
accepted = '0123456789dr+-*/%^='

mystr = '2'
print(mystr in accepted) # True

mystr =...
Showing results 1 to 40 of 1000

 


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