Posts by bumsfeld

More examples:

# a multiconditional statement
if x > 0:
  if x < 10:
    print("x is larger than zero and less than 10")

# a simpler version
if 0 < x < 10:
  print("x is larger than zero and less than 10")

# is character lower case?
if 'a' <= character <= 'z':
  print(character)

Use list slicing and extend().
Hint:

mylist = [0,1,2,3,4,5,6,7,8,9]
ix = 3

t1 = mylist[0:ix]
t2 = mylist[ix+1:]

# now use list extend()
t2.extend(t1)

print(t2)  # [4, 5, 6, 7, 8, 9, 0, 1, 2]

Python has all the tools to do such a thing.

Use slice and extend(), for example:

mylist1 = [1,2,3]
mylist2 = ['a','b','c']

# slice mylist into two temporary lists at index 2
t1 = mylist1[0:2]
t2 = mylist1[2:]

# now use list extend()
t1.extend(mylist2)
t1.extend(t2)

print(t1)  # [1, 2, 'a', 'b', 'c', 3]

Split your large project into a series of small projects.

Get yourself a Raspberry Pi and start a project.

Check out:
http://www.raspberrypi.org/
http://www.instructables.com/id/Raspberry-Pi-Projects/

gesundheit

One computer is just not enough. I usually have my desktop PC, two netbooks and an IPad going.

"He was a wise man who invented beer."
~~~ Plato

It's Oktoberfest time, the time for a good bratwurst, grilled chicken, radish, potato salad, all washed down with a stein full of beer.

"A fool with a tool is still a fool."
~~ Roland Hirsch

The IPython Notebook seems to be made for scientific presentations and reports.
To show off things like numpy, matplotlib.pyplot, pylab, seaborn and guiqwt.pyplot. You can tweak your code and see the result in real time.

The strontium clock developed in the US would only have lost only about one second since the earth began. It is accurate to a second in five billion years.

Caesium was discovered in 1860 by German scientists Robert Bunsen and Gustav Kirchhoff. It's a silvery metal with a golden cast that melts at 28.4C (just above room temperature).

It is used in the Caesium Clock at the National Physical Laboratory in the London suburb of Teddington. The clock is accurate to one second in 1.4 million years.

Source:
http://www.bbc.com/news/magazine-29476893

I agree with JorgeM, real world examples/projects are important to keep the students interested.

An IDE like PyScripter would redline line 11 because of the missing comma.

You can also streamline your code further with another function to remove some of the repetition:

def main():
    shipweight = float(input('Please enter the weight of the item you wish to ship: '))
    shipping_charges(shipweight)

def shipping_charges_calc(rate, shipweight):
    print("{} pounds will cost you ${:0.2f} per pound.".format(shipweight, rate))
    total= rate * shipweight
    print("Therefore, your total shipping charge would be ${:0.2f}".format(total))

def shipping_charges(shipweight):
    if shipweight <= 2:
        rate=1.10
    elif shipweight <= 6:
        rate=2.20
    elif shipweight <= 10:
        rate=3.70
    # shipweight > 10 pounds
    else:
        rate=3.80
    shipping_charges_calc(rate, shipweight)

main()

Also read up on the function format(), commonly used with Python 2.7 and higher.

Nice coding though.

Variable daniel will have to an instance of class Radiobutton.

check with
print(type(daniel))

“Why not go out on a limb? That's where the fruit is.”
~~ Will Rogers

Closeup shots of people's faces reading off information in a manner they would not normally talk to each other. Those investigative shows are loaded with it.

Windows 8.1 works for me most of the time!
Not sure if Windows 10.1 will be much better.

Fruit bats, a delicacy for some West Africans, are considered to be the Ebola virus's natural host.

Source:
http://www.bbc.com/news/world-us-canada-29462431

I think I get the idea.

Does anybody have a good example of a Functor in Python?

For Perl:
http://perlmaven.com/perl-tutorial

A little Python history:

Python 1.0 - January 1994
Python 1.5 - December 31, 1997
Python 1.6 - September 5, 2000

Python 2.0 - October 16, 2000
Python 2.1 - April 17, 2001
Python 2.2 - December 21, 2001
Python 2.3 - July 29, 2003
Python 2.4 - November 30, 2004
Python 2.5 - September 19, 2006
Python 2.6 - October 1, 2008
Python 2.7 - July 3, 2010

Python 3.0 - December 3, 2008
Python 3.1 - June 27, 2009
Python 3.2 - February 20, 2011
Python 3.3 - September 29, 2012
Python 3.4 - March 16, 2014

Windows 95 was released on August 24, 1995
As far as computing is concerned this is really, really old!
I can't believe that there are many machines left out there.
Maybe in some museum basement.

Honda parts are expensive and in high demand.

If you are not very handsome, things get tough. How about a sports car to impress her with?

Children should be told to be in a sport rather than watch it.
It takes a couch potato to raise a couch spud.

Eggs and mushroom with one piece of honey cake and hot chocolate

Steve Ballmer is stepping down because he is running MS into the ground with a lot of me-too ware and a management style of forced ranking. He most likely was not aware of the spy portion of Windows8.

Something does not work right with code stuff!
Ah, delayed action!

pythondevguy do this:

import random
x = random.randint(1, 100)
print(x)
x = random.randint(1, 100)
print(x)

Here is a hint:

sum3 = 0
for n in range(0, 1000, 3):
    #print(n)  # test
    sum3 += n

print(sum3)

What value does vbNullString represent?

I guess you can find good engineers in any country, also the bad ones.

I would use the length of string.
Works well in most languages.

I have some neighbors who just spent over $5,000 for their dog's surgery. The dog has one massive tumor that comes back.

Let's not forget that WxPython is just the wrapper for WxWindows which is written in C++.
The wrapper seems to ignore the C++ error handling. It could have been done, but wasn't.
I don't think there is any GUI toolkit that is written in pure Python, bummer.

On the other hand Python is very good glue language for other languages. It's easy to make wrappers.

It might be important to hide numbers, this code does not:

# -*- coding: cp1252 -*-
''' encrypt105.py
modified code from james.lu.75491856 (James Lu)
'''

# needs to be at beginning of program code
# allows Python27 to use PYthon3 print() options
from __future__ import print_function
import string

def crypt(text, code):
    ''' encodes or decodes '''
    e_text = ""
    for c in text:
        e_text += code.get(c, c)
    return e_text    

# establish letter code dictionary
code = dict(zip(string.letters, string.letters[::-1]))

text = '''\
will pay $3,250,000 for the 98 diamonds
'''

encrypted = crypt(text, code)
print("encrypted:\n{}".format(encrypted))

print('-'*50)

decrypted = crypt(encrypted, code)
print("decrypted:\n{}".format(decrypted))

''' my result ...
encrypted:
ÍÜÙÙ ÔäË $3,250,000 ßÕÒ ÐÝà 98 áÜäØÕÖáÑ

--------------------------------------------------
decrypted:
will pay $3,250,000 for the 98 diamonds
'''

Quick looky shows an indentation problem.

Give us some code!

What was the mistake?

Yes

Java gets updated about once a week.

@James.Lu
How would you mix up a dictionary with a random seed?

One fist full of Jelly Bellies.

The water can easily be recycled. I read that North of Las Vegas a large molten salt solar plant is being built. The molten salt is usually a mixture of sodium and potassium nitrate maybe with some nitrites thrown in. The whole thing melts relatively low and then is stored at about 1000 degF in big well insulated steel tanks. From there it is pumped to heat exchangers to produce steam for the turbines as needed. Nevada Energy is buying the power generated, NE is owned by Warren Buffet, one of the richest man on earth.

Your example answer is wrong.

You could potentially us a label as a spacer:

try:
    # Python2
    import Tkinter as tk
except ImportError:
    # Python3
    import tkinter as tk

root = tk.Tk()
root['bg'] = 'yellow'

# use label as spacer, match background color
spacer = tk.Label(root, width=20, bg='yellow')
spacer.grid(row=1, column=1)

button = tk.Button(root, text="Button1")
# puts button to the right of label spacer
button.grid(row=1, column=2)

root.mainloop()