Scratch

Moving to misc is incoming

otherwise its okay

I don't get panther, can you help me? So I open it and its a black screen, I type in print('hi') and it adds hi
>>>
how do I save it? How do I open it? HELP ME PLEASE!

bbbeb wrote:

Moving to misc is incoming

otherwise its okay

I think this should actualy stay here, it might not be directly related to scratch, but it can communicate with it, and whats wrong with a tutorial on how to do python, which is more advanced?

@thebuilderdd
Maybe some screen shots on how to set up python?

Edit:
Tried the Helloworld program.

I get an Error:

Traceback (most recent call last):
  File "J:/Programming/Python/Helloworld.py", line 4, in <module>
    myName = input()
  File "<string>", line 1, in <module>
NameError: name 'Mark' is not defined

I'm geussing is that you didn't define what type of variable myName is.

Last edited by markyparky56 (2011-03-26 18:07:14)

markyparky56 wrote:

bbbeb wrote:

Moving to misc is incoming

otherwise its okay

I think this should actualy stay here, it might not be directly related to scratch, but it can communicate with it, and whats wrong with a tutorial on how to do python, which is more advanced?

@thebuilderdd
Maybe some screen shots on how to set up python?

Edit:
Tried the Helloworld program.

I get an Error:

Code:

Traceback (most recent call last):
  File "J:/Programming/Python/Helloworld.py", line 4, in <module>
    myName = input()
  File "<string>", line 1, in <module>
NameError: name 'Mark' is not defined

I'm geussing is that you didn't define what type of variable myName is.

Oh, that. You have Python 2.7! They list that one first.

markyparky56 wrote:

Tried the Helloworld program.

I get an Error:

Code:

Traceback (most recent call last):
  File "J:/Programming/Python/Helloworld.py", line 4, in <module>
    myName = input()
  File "<string>", line 1, in <module>
NameError: name 'Mark' is not defined

I'm geussing is that you didn't define what type of variable myName is.

The problem is that Python replaces 'input()' with whatever you type in, so it's basically the same thing as saying

myName = Mark

Python thinks that Mark is a variable, but it hasn't been defined, so it gives an error. To enter a string (a piece of text), you put 'Mark' in single or double quotes, like "Mark". The function 'raw_input()' treats what you type in as a string, so replacing 'input()' with 'raw_input()' will fix the program.

A better example would be to use

myName = raw_input('What is your name? ')

Run it and see what happens! 

cpumaster930 wrote:

What kind of stuff can you make with Python?  Is it similar to C++?


I know a bit of C++ so I might be able to learn this if it's similar...

Python is quite different to C++. Python is a high level, object oriented programming language that is great for people learning programming. Although it is a lot different, I still suggest learning it. 

Last edited by floppy_gunk (2011-03-27 02:08:41)

Okay, its working now. Thanks floppy_gunk!

Working code:

#This program says hello and asks for my name.
print('Hello world!')
myName = raw_input('What is your name? \n')
print('Hello ' + myName + ' Its good it meet you!')

I tossed in a newline character to make it look nise when you're reading it.

Python is so cool.
but how does python communicate with scratch?

thebuilderdd wrote:

DarthPickley wrote:

Python is so cool.
but how does python communicate with scratch?

Related

Related? In what way?

cpumaster930 wrote:

What kind of stuff can you make with Python?  Is it similar to C++?

I know a bit of C++ so I might be able to learn this if it's similar...

I agree with everyone else, but what no one seems to realize is that the OOP part is OPTIONAL.  I still haven't even learned enough Python to use the OOP part!

markyparky56 wrote:

maxskywalker wrote:

1st of all, you need more explanation for each statement.  A good coding tutorial first tells about a certain statement and parameters, then gives an example.  Also, I'm not sure that this should be on the Scratch website.

Python allows for communication between Scratch and other programs, possibly even allowing for more advanced multiplayer. And yes, the tutorials do need more depth and explanation.

I can only update on Fridays, so stay tuned!

ssss wrote:

actually, MIT + SCRATCH should actually be int(MIT) + int(SCRATCH).  It lookes more proffesional, and let's you do equations like int(MIT) - 4 * int(SRATCH)

That looks like your calling a function called int() when ever you use an interger variable... Having learnt the basics of C++, I would've thought you declared a variable by stating what kinda it was (int) the name of it (Scratch) and its value ([large number])

So you'd have something:

int Scratch = 34829434838048

The value for scratch is just random. Is this done through the int() part of the code? just in brackets?

Magnie Quick Guide to Python:

print "Hello World"
raw_input("Press Enter To Exit")

^ Use the raw_input to keep the 'Black Window' open. 

print "Text in quotation marks" - Displays whatever is in the quotation marks.
raw_input("Text in quotation marks") - Is like the Ask Block in Scratch, to save the input from the Ask Block:

variable = raw_input("Text in quotation marks")

variable = String, Integer, etc - Just like a variable in Scratch.

# Comment Here, Echo Program
running = 1
while running == 1:
 cmd = raw_input("Command: ")
 if cmd == 'quit': running = 0
 else: print cmd

^ That will print whatever you type in there, unless you type 'quit' that will exit the program. More detail:

# Comment Here, Echo Program
running = 1 # running is 1
while running == 1: # while running is 1, do below, if it is not 0 end while loop
 cmd = raw_input("Command: ") # Ask for input, save it to cmd
 if cmd == 'quit': running = 0 # if cmd is 'quit', set running to 0 so program will end
 else: print cmd # If not 'quit' print whatever 'cmd' is.

^ pretty basic and understandable. If you have any questions, feel free to ask ^.^

Last edited by Magnie (2011-04-14 17:28:39)