Discuss Scratch

#1June 19, 2014 16:29:05
pancakeaccount
New to Scratch
4 posts

Python Help

Hi everyone, I'm new to the scratch website and have a question which I can't find an answer to. I'm working with a Raspberry Pi having Python and Scratch talk back and forth. Is it possible to create a variable in Python and have it show up in Scratch or can Python only receive variables from Scratch?
#2June 19, 2014 20:36:30
davidkt
Scratcher
1000+ posts

Python Help

You could create a variable in Scratch and edit it using Python…
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#3June 19, 2014 20:39:37
pancakeaccount
New to Scratch
4 posts

Python Help

So it isn't possible to initialize a variable in Python then have it be created in Scratch? Would and outside technology like Scratchpy help with this?
#4June 20, 2014 10:50:04
blob8108
Scratcher
1000+ posts

Python Help

pancakeaccount wrote:

Would and outside technology like Scratchpy help with this?
Sounds like it.

Check out Python#Scratch_1.4 on the wiki: there are a few libraries like scratch.py that help you send data in Python to/from Scratch. You can create a “sensor variable” in Python and read it in Scratch using the sensor value of block.
tosh · slowly becoming a grown-up adult and very confused about it
#5June 20, 2014 15:44:46
pancakeaccount
New to Scratch
4 posts

Python Help

Check out Python#Scratch_1.4 on the wiki: there are a few libraries like scratch.py that help you send data in Python to/from Scratch. You can create a “sensor variable” in Python and read it in Scratch using the sensor value of block.

That seems to work but is there any way to have that value be read into Scratch as an actual variable rather than a sensor? So that when a python program is run the variables are automatically created?

Last edited by pancakeaccount (June 20, 2014 15:45:11)

#6June 20, 2014 20:37:04
blob8108
Scratcher
1000+ posts

Python Help

pancakeaccount wrote:

is there any way to have that value be read into Scratch as an actual variable rather than a sensor?
No, you have to use the sensor value block.
tosh · slowly becoming a grown-up adult and very confused about it
#7June 30, 2014 23:06:04
Magnie
Scratcher
100+ posts

Python Help

blob8108 is correct. You can only use sensor-variables to read information from the Python program. If you really want to use an actual variable, you'll have to forward the value from the sensor to the variable. You also won't be able to dynamically find the name of the sensors either.
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