Raspberry Pi Forums

Billboutin

Hi. I'm still just learning Python, and I've been doing some programs that output to a 7 segment LED display for demonstrations. What I'd like to know is if there's a "keypress" function that I can use in a loop to keep the program running, flashing lights, etc, without stopping to request an input ...

Billboutin

That did it, thanks.

Billboutin

Hi all, I tried following the "plot a sine wave" lesson in the python docs but couldn't get the setworldcoordinates to work, I plugged in the following code and got a "screen not defined error import math import turtle screen.reset() screen.setworldcoordinates(0,-1,360,1) wn = turtle.Screen() wn.bgc...

Billboutin

I assume you are using a recent Raspbian OS... If you can't find PyGame, then it is probably because you are using Python3 and not Python2. PyGame is already installed, but it is not yet available for Python3. So if you want to use PyGame you will have to use Python2 (and maybe IDLE) and not Python...

Billboutin

Is there a revision of the Python tutorial somewhere about? There seem to be errors in the tutorial, doing exercise 6.2 generated the following error, and 6.3 didn't work either. >>> import sys >>> sys.ps1 Traceback (most recent call last): File "<pyshell#1>", line 1, in <module> sys.ps1 AttributeEr...

Billboutin

Substitute python for python3 on the command line. You are getting the error about non-ASCII characters because you copied and pasted some strange whitespace characters. Delete all the whitespace and add it again with your spacebar. Warning: do not use tabs! They will work after a fashion but will ...

Billboutin

There are examples in the Raspberry Pi Education Manual: http://downloads.raspberrypi.org/Raspberry_Pi_Education_Manual.pdf Make sure you check the errata here: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=28098&p=252609#p249673 Note that for up to date RPi.GPIO information, look here (especia...

Billboutin

There are examples in the Raspberry Pi Education Manual: http://downloads.raspberrypi.org/Raspberry_Pi_Education_Manual.pdf Make sure you check the errata here: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=28098&p=252609#p249673 Note that for up to date RPi.GPIO information, look here (especia...

Billboutin

Hi all, I recently received a Raspberry Pi and I'm just figuring out how to use it. My background is as an engineering electronics technician, I am familiar with circuit design and fairly familiar with digital and microprocessor circuitry. My programming experience has been with Fortran and Basic ye...

Billboutin

Finally got the keyboard working properly, at least for now. Thanks for all the help everyone.

Billboutin

I'm trying to learn programming in Python, trouble is the program doesn't seem to accept the double quote " symbol. When typing it there's even a delay on that symbol, so I tried every keyboard configuration in the config that I could find and it still gives a syntax error. I'm in the US using an H...

Billboutin

Hi all, I'm trying to learn programming in Python, trouble is the program doesn't seem to accept the double quote " symbol. When typing it there's even a delay on that symbol, so I tried every keyboard configuration in the config that I could find and it still gives a syntax error. I'm in the US us...

Billboutin

I suggest your problem is actually a syntax error in a previous line probably with a quoted line and a MISSING end quote on that line. I just copied and pasted your single line into a python 3 (actually idle on Windows) and it executed no problem, and NO errors The following in python 3 works x=int...

Billboutin

croston wrote:What about single quotes?

Same problem syntax error in identifier. Quotation marks are not coming up in this reply either.

Billboutin

Are you using Python (V2) or Python3 your statement looks Python 3 being executed in Python2 If you are using IDLE that is python V2 Use IDLE3 for Python 3 I tried it in all three, Linux tx, idle and idle 3 got basically the same message. For some reason the computer does not seem to like the quota...

Billboutin

[quote="joan"]Could you post an example of the code which gives a syntax error in Python?

Code: Select all

x=int(input("Please enter an integer: "))

Billboutin

joan wrote:Could you post an example of the code which gives a syntax error in Python?

Include it using the Code button above.

x = int(input("Please enter an integer: "))
this got a "syntax error" with a symbol under the first double quotation mark.

Billboutin

croston wrote:Could you show us your code please!

x = int(input("Please enter an integer: "))
this got a "syntax error" with a symbol under the first double quotation mark.

Billboutin

Hi all, I'm trying to learn programming in Python, trouble is the program doesn't seem to accept the double quote " symbol. When typing it there's even a delay on that symbol, so I tried every keyboard configuration in the config that I could find and it still gives a syntax error. I'm in the US usi...

Billboutin

Thanks.

Billboutin

The power cable to the Rapi is bad, is it possible to backfeed 5 volts through the gpio connectors?

Billboutin

What are your interests? Are into coding at all? Just wish to understand GNU/Linux and experience the world on the other side of the Window(s)? Aspirations to use the GPIO and the physical computing side of things.? Take a look at the MagPi magazine http://www.themagpi.com/ where there is a smatter...

Billboutin

Hi. I just received my Pi and just got it on the internet today. I am totally new to the computer, to Linux and Python as well. Could someone please point me in the right direction to get started learning how to use Linux and how to get Python up and running? Thanks in advance.

Bill Boutin

Search found 23 matches

keypress function?

Re: problem with turtle graphics

problem with turtle graphics

Re: errors and missing modules

errors and missing modules

Re: How do I use the GPIO?

Re: How do I use the GPIO?

Re: How do I use the GPIO?

How do I use the GPIO?

Re: Getting a s syntax error

Re: Getting a s syntax error

Re: Getting a s syntax error

Re: Getting a s syntax error

Re: Getting a s syntax error

Re: Getting a s syntax error

Re: Getting a s syntax error

Re: Getting a s syntax error

Re: Getting a s syntax error

Getting a s syntax error

Re: Bad power connection

Bad power connection

Re: Hello newbie here

Hello newbie here