I think I understand what you're trying to do. It still can be done with instances like so:


class Cube(object):
def __init__(self, x, y):

self.x = x
self.y = y
...

The phrase


for line in data:
...


assigns the variable "line" to each interated string terminated by '\n' within the data.

So if you inserted the statement

Hm. The only thing I can think of is that your LocalFileName is not valid ASCII.

Jeff

Search this forum for Vega's decimal to binary converter. Your code is reading the data correctly; now you just have to find the right way to display it.

Jeff

Interesting concept. Two potential problems:

(1) What if the images are not all the same size?

(2) How does the code decide what framerate to use?

Jeff

Mark as solved and give Bear of NH props. :)

Jeff

The standard way of repeating code is to use a while loop. There are two styles: the 'test first' and 'test last' methods.


# a test-first loop: set the sentinel and repeat until sentinel is...

OK, that makes sense. Here's what will happen:

In lines 9-10 of your current code, you read in an image from a file.

Instead, you will call your camera's "take a picture" method. It will...

That's cool. I didn't even know there was a PySerial module.

First, the error messages are confusing. Are those the result of the print motor.read(motor.InWaiting()) command?

Second, just to...

Well, here's the basic idea. You have a button in your GUI. The button has a callback function. That function can then call your program. Here's a typical instance:


def mycallback(self,...

Your question is a little confusing. When I display an image, I make it into a wx.Image() object or a wx.Bitmap() object. It doesn't really matter whether it came from a file or not.

So ... can...

ermm... that should be tkFileDialog. Sorry. (and who disabled the "Edit" feature?!)

Jeff

Lists of lists work fine as container arrays (not mathematical arrays, but you don't seem to be wanting that). So:


nlat=10
mylist = []

for x in range(0,nlat):
tmp = []

for y in...

As well he should :)

Here's what wooee means:


def SD():
b = []
for n in range(r-1):
if r[n] > a:
b.append((r[n] - a)**2)

For the file choosing, you should check out the filedialog module. Google for references on it.

For the endless looping, take a look at the code and think about how to remove the element of...

You mean the center of mass?

Well, do it like the physicists do: Sum(moments) / Sum(masses):


>>> def findCOM(grid):
Mx = 0
My = 0
mass = 0

Hm. What happens if you send it an object of the required class? And what is the required class, anyways?

Jeff

Pass in the appropriate "Nothing" value for that type.

So if the COM function header is


Private Function MyFunc(text as String) as String


then you would pass in

Well, if you think about it, the problem does not have a unique solution.


x = Class()
x.name = 'the_name'
x.value = 10

y = Class()
y.name = 'the_name'
y.value = 20

Almost. In dynamically typed languages like Python, assigning a value and declaring the type occur in the same motion:

MyList = [1,2,3]

means

"Declare MyList as a reference to a list, and...

Well, start with a thought. How can you explain the process to someone else in English? Make it general: given data in rows of n, how would you rewrite it in rows of m?

Once you have that...

I really like the text we used for my high-school level class: Python Programming for the Absolute Beginner. Two caveats -- it's game-oriented, and it doesn't use Python 3.0.

That said, it...

This I can explain, but the boto framework is completely unknown to me.

When a new object is created, __new__() is called. I don't know all the details, but it seems from the documentation that...

Yeah, that's interesting ... None in Python is a special type, whereas Nothing is equivalent to NULL of whatever datatype one is working with: Dim b as Integer: b = Nothing -- this makes b a Nothing...

I'm confused. Here's the help on shutil.copy:



Can you be specific with your question?

Thanks,
Jeff

One more thought: lists of lists in Python function reasonably well as arrays:


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

print mylist[0][2]
3


I say "reasonably well" -- there aren't any linear...

I fully agree, Vega. The coding purists frown on while True loops, but I find them really useful. Glad to know someone else out there shares my guilty secret. :lol:

Jeff

Without contradicting the posters above, I would add that Python makes OOP really easy. And in the end, coding with objects is easier to wrap one's mind around than coding without objects -- once...

>>> class Thing(object):
pass

>>> t = Thing()
>>> dir(t)
['__class__', '__delattr__', '__dict__', '__doc__', '__getattribute__', '__hash__', '__init__', '__module__', '__new__', '__reduce__',...

Just to add to scru's point: Being able to re-use code is an extremely important but sometimes overlooked feature of programming. Its main value is not saving time, but eliminating bugs.

That is,...

Can't speak to IPython, but a simple file copy will solve the first problem.

Two thoughts.

(1) You're writing code as if it were C or Pascal. A better way is to write a class:


class Bird(object):

def __init__(self, nID=0, ter=0, year=0, fled=0, age=0.0):
...

Yes, I actually do the latter.

ACTUALLY, what I often do is this:


class MyClass(object):
....
@staticmethod
def test():
## Unit testing goes here

The style is good too. In general, functions should do one thing and do it well. Yours pass that criterion.

Although ... I don't usually have a "main()" for the simple reason that I like to...

I'm not getting your results:


class test(object):
a = 55
def dispmenu(self): print self.a


>>>
>>> instance = test()

In Python < 3.0, print is a keyword and as such cannot be deleted or clobbered, as far as I can tell. So for example, it's not a part of __builtins__ because it isn't a function.

Interesting that...

First of all, cool project!

Second: are you nuts?!! :) Seriously, though ... it will take a team and a lot of effort.

Third: You might start by contacting Fred Lundh and Robin Dunn and...

The newline character is '\n' (including the quotes), not \n\.

Hope it helps,
Jeff

If you have two genuinely separate programs, then they will have to signal each other. This would likely be accomplished with a pipe, and you'll need some kind of signal handling.

How badly do...

This appears to work:

>>> im = Image.open("24bit test.bmp")
>>> im2 = im.convert("P")
>>> im2.save("256bit test.bmp")

The bit-depth of the output file is 8, so I assume that's what you were...