Questions tagged [python-3]
Use this tag when referring to the Python 3 language. This can include discussions about specific features unique to the language or perhaps when referring to software that requires Python 3 in order to function. Note that general programming questions are often better suited to Stack Overflow; use this tag only where directly relevant to the Pi.
488
questions
0
votes
0answers
7 views
PySide2 not seen by pip
I'm trying to install PySide2 on my RPi 4, and, although the installation was successful, pip3 doesn't recognise it. This then causes issues when installing other packages relying on PySide2.
I ...
1
vote
1answer
25 views
Raspberry pi interfacing with AD8232 using python
I have already seen the other post but I want a python code through with I can connect my raspberry pi and ECG sensor ad8232
I am totally new to raspberry pi interfacing so I don't completely ...
0
votes
1answer
22 views
RPi.GPIO: multiple buttons one callback function, ignore buttons while callback is executing
I have 4 buttons connected to my Raspberry Pi that call the same function when pressed. I'm using GPIO.add_event_detect to connect the buttons to the callback function. When one button press executes ...
0
votes
0answers
17 views
Trying to Run Python Scripts on the Pi remotely using bluetooth
I am trying to get a script that is currently on my Raspberry pi 3B+ to start using the Bluetooth on the Pi itself from my laptop. I have tried a few things, including pybluez (wouldn't run on my ...
0
votes
1answer
17 views
Raspberry pi cannot run an executable file created in Python
I' m new to Raspberry Pi and I created a file with the code:
from tkinter import *
from PIL import Image, ImageTk
import board
import busio
from adafruit_as726x import AS726x_I2C
import time
import ...
0
votes
0answers
24 views
How can I make the Raspberry Pico not automount as USB storage while using Circuit Python
I am using Circuit Python on a Raspberry Pi Pico to give me hardware buttons for keyboard shortcuts. I am using Circuit Python as opposed to MicroPython because it has the USB_HID library.
I don't ...
2
votes
2answers
38 views
How do I get Python 3 to work again on my Raspberry Pi?
I am running Raspbian on a Pi 3 that has one job: it runs a clock on a Sense Hat, from Python 3 source code. Recently I found I was unable to run my clock program, which generated an error stack that ...
1
vote
2answers
31 views
Problem running a Python3 script at startup with lxsessions
I have Raspbian Buster on a RPi4 and I was launching a Python3 based Kivy 2.0 app at startup. Since it is a GUI app that needs networking and bluetooth. The only way to make it work was an executable ...
0
votes
1answer
26 views
gpiozero button to raise SystemExit / gpiozero clash with GPIO.cleanup()
TL;DR: Since this is a long question I have the following problems:
I'm looking for a good way to use gpiozero Button to raise SystemExit upon button press
I have an imported module to drive an E-Ink ...
0
votes
0answers
32 views
cant install pyqt5 on thonny python!
i already got pyqt5-sip installed! but when i try to install pyqt5 i get this error!
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting PyQt5==5.15.2
Downloading ...
0
votes
1answer
22 views
Can turicreate python library be installed on raspberry pi?
Hello all,
Recently I am trying to install turicreate library on my raspberry pi 3 model B+ by following all the required steps to be done for installation for operating systems like Ubuntu which is ...
0
votes
1answer
50 views
ModuleNotFoundError: No module named 'PIL'
I am having issues trying to run a python file that works with an rfid headder i have on my pi 0. Im brand new to the pi so it might be that ive not done something simple but im still stuck. I have ...
0
votes
0answers
8 views
ORB object tracking on Raspberry pi
I am new to Rasberry Pi and OpenCV
but I got a project to make a target detection tool using ORB from openCV with raspberry pi
I'm using the Raspberry Pi 3 Model B and the Raspberry Pi Camera V2 8MP
...
0
votes
0answers
13 views
How to full screen the app window in Rpi 7in TFT
I'm currently working on an app for rpi using kivy that will be displayed in a 7in TFT. I used the 7in TFT resolution as window size (800,480) I am developing the code in windows pc since coding it in ...
0
votes
1answer
34 views
Sonic Pi won't play sound from remote python script
I am using Sonic Pi 3.3.1 on my Windows PC and a Python script(Python3.7.2) on my raspberry pi(Raspbian Buster) that detects distance from an HC-SR04-Ultrasonic Sensor .The program then creates a tune ...
0
votes
2answers
85 views
Update system python 3.7.3 to python 3.7.9
Right now the python3 version is 3.7.3 on my Raspberry Pi 4.
Generally, it is a bad idea to mess with the system Python (I've understood), but since I use 3.7.9 normally, I would like to have that ...
0
votes
0answers
23 views
Is there a way to get PiCamera's actual framerate?
I would like to know the camera's actual frame rate. This might seem trivial, but I could not find an obvious solution. I'm using PiCamera 1.13 with Python 3.7.3.
My current approach is
with ...
0
votes
0answers
46 views
usb mic works in python speech_recognition test but not in practice
System and Devices
Raspberry Pi Zero W running on Raspbian GNU/Linux 10 (buster)
usb microphone (this one)
Python 3.7.3
What's working:
I can run python3 -m speech_recognition on the raspberry pi, ...
-2
votes
1answer
18 views
flask_ask won't import after proper installation
I'm trying to use the flask_ask library however I for some reason can't get it to work. Whenever I try to reinstall flask-ask by doing pip install flask-ask I am given the same thing below so I think ...
0
votes
1answer
21 views
Using Mu editor on RPi for Python version 3.7. Copying script written (and worked) on 2.7 and getting syntax error on script
Getting syntax error and "cannot understand this line, check for missing characters" statement for this line: GPIO.setup(LED1, GPIO.OUT) plus a continuation line under-indented for visual ...
0
votes
1answer
65 views
Running python 3.7 on miniconda on raspberry pi
I want to use python 3.7 in raspberry pi through miniconda but surfing, I got to know that miniconda provides python version upto 3.4. Some sources said to use berryconda, which I installed but still ...
0
votes
0answers
22 views
I'm on a windows computer but I'm coding with mcpi and I was wondering how I'd put custom commands
I'm on a windows computer but I'm coding with mcpi and I was wondering how I'd put custom commands. I cannot find any tutorials and no forums are talking about it. Can someone please point me in the ...
0
votes
1answer
31 views
Python Sockets ErrorConnectionRefused: Errno111 (only on Pi)
So I made a simple client / server script using python sockets, and it's been working great on my PC. I decided I'd try to move the server over to a raspberry pi so it would be dedicated, and it's not ...
0
votes
1answer
20 views
import Spacy on RPI in Pycharm and other IDE gives error
I successfully installed Spacy using pip install spacy and alternatively through Pycharms virtual env, but when I import spacy in my program it's giving me the following error;
home/pi/....
0
votes
1answer
22 views
Python tkinder reset button code fails on third attempt
I am trying to trigger a timer when there is audio and stop the timer when the audio is lower than a set value. There is a reset button that will reset the timer back to zero. The reset button works ...
0
votes
1answer
49 views
gpiozero's LED.toggle() switches LED again after some seconds
I am using the gpiozero library to controll a LED strip and a relay connected to my raspberry pi 4. This is the way I connected the LED strip to the pins. I use a type SMD5050 LED strip similar to the ...
1
vote
0answers
27 views
Tkinter Script Autostart
I have a problem with loading the Tkinter script at every reboot of the Raspberry. The script is executable and starts from a .desktop file. No problem with it when the Raspbian OS is booted (I guess ...
0
votes
1answer
54 views
Changing install directory of python after installation
I have a fresh installation of Raspbian Lite. This one comes with Python 2.7 and 3.7 and no pip installed. I wanted to install Python 3.9.1 and followed the instructions from here.
To briefly state ...
0
votes
0answers
34 views
undefined symbol: libusb_free_config_descriptor
I try to use a Chafon UHF RFID reader via USB with Pi Zero.
The manufacturer asked me for installing this:
sudo apt-get install libusb-1.0-0-dev
and use this Python code:
UsbDemo.py
#!/usr/bin/python
...
1
vote
0answers
41 views
Can keyes Sound sensor be used as a Microphone in Raspberry pi?
I am trying to make a speech recognition system on a Raspberry Pi 3 model B+ using Python. It needs a microphone. I have the keyes Sound sensor which looks like this(https://cutt.ly/Jjp9jWP). Can this ...
0
votes
2answers
28 views
Openssl error while installing paho-mqtt python package
I am trying to install paho-mqtt python library using below command:
sudo pip3 install paho-mqtt
But I am getting below openssl error:
Looking in indexes: https://pypi.org/simple, https://www.piwheels....
1
vote
0answers
109 views
Problem with USB RFID Reader and Raspberry pi 4
Firstly I'm just a beginner trying to get into pi world so my knowledge is minimal at this point.
I'm trying to make USB RFID card reader work on raspberry like it works on my Windows pc, imitate ...
0
votes
1answer
271 views
Ubuntu 20.10 and GPIO
I have trouble installing RPi.GPIO library on Ubuntu 20.10. I run apt-get update and apt-get upgrade then apt-get install python python3 python3-pip python3-dev everything went ok. Then I run pip ...
0
votes
0answers
31 views
Send logger to I2C interface
How can I pass a Python logger to the i2c interface? I bought a small 0.96" oled display and would like to use it on a headless raspi. Is there some way to just display everything thats raised by ...
0
votes
4answers
60 views
This channel is already in use, again: X-mas tree lights
Sorry, but I've looked at several threads and no one talks about my idea.
I'm currently working with a switch, that will manage the Christmas-tree lights, to turn it on at 18:00 and off at 01:00 (e.g.)...
0
votes
0answers
65 views
Connect multiple bluetooth barcode scanners to Raspberry Pi 3
I am working on a project for my university. I want to connect several Bluetooth barcode scanners (OPN2006) to a Raspberry Pi 3+ by using the Bluetooth SPP. I managed to make the connection to one ...
0
votes
2answers
58 views
Execute A Jupyter notebook file using runipy -o myfile.ipynb command upon Raspberry PI 4(Raspbian OS) boot-up
My research regarding this issue: All methods available on the internet are about running .py files on Raspberry Pi boot.
NO ACTUAL HELP ABOUT RUNNING JUPYTER NOTEBOOK FILES .ipynb ON RASPBERRY BOOT ...
0
votes
1answer
44 views
Interfacing R307 to RPI without USB Serial Converter
Good day I am trying to interface the r307 fingerprint module in raspberry pi 4 however as what I can see every example or tutorials require USB SERIAL CONVERTER is it possible to interface the module ...
1
vote
0answers
119 views
PyCharm 2020.2 can't open terminal [closed]
I am having a problem with PyCharm on my raspberry pi. Everything works just fine when using PyCharm 2020.2, except for its terminal.
When I try to open the terminal tab it says the following:
Cannot ...
0
votes
0answers
21 views
Adding chromium webbrowser with url and filter the data to 1 url
I'm using the QR-Code recognizer for the Raspberry Pi 3B+ from this guy:
https://www.hackster.io/gatoninja236/scan-qr-codes-in-real-time-with-raspberry-pi-a5268b#comments
I like to add 2 things to the ...
0
votes
1answer
44 views
Problem opening tkinter script via html page
I am working on this project where I have Raspberry Pi 3 with full Raspbian (with GUI) connected to a 7" screen. I created a Python 3 script:
// gui.py
import tkinter as tk
root = tk.Tk()
root....
1
vote
1answer
111 views
Install pypy3 on raspberry pi
I found this to try to help me install pypy3
https://stackoverflow.com/questions/55703832/install-pypy3-on-raspberry-pi
However the download command no longer works. I tried:
sudo apt-get install ...
0
votes
2answers
60 views
Unable to run bash after boot
I have a raspberry pi 4, EDIT: using python3.7, with raspbian OS Devian 10 Buster and I am trying to run a script afeterboot for people counting, it uses a virtual env, after reading various post this ...
0
votes
1answer
61 views
Rerun the code if error occurs
I am fairly new to coding so please bear with me. I am using random.choice for my code to run.
So, sometimes it gives me an error 'Cannot choose from an empty sequence' and sometimes it does not.
Now, ...
1
vote
1answer
146 views
Real time + High frequency ADC data reading with Raspberry Pi 4
I need to acquire a signal at a minimum sample rate of 10 kHz and processing it real-time using a Python code. Since Raspberry Pi only reads digital signals I get an ADC (High Precision AD/DA Board ...
1
vote
0answers
709 views
RTSP streaming works in VLC media player but not in Python OpenCV
I have Logitech C920 USB webcam connected to my rPi 4 4GB model. I want to stream the video feed through rtsp. The following command runs on the pi:
cvlc -v v4l2:///dev/video0:chroma=mp2v --v4l2-width ...
0
votes
0answers
31 views
breaking out of while loop
Trying to stop a light blinking "while" loop by querying the position of a gamepad joystick. Can't seem to continuously query while in the loop and break out of the inner loop. Can you ...
1
vote
0answers
32 views
Connecting a phone to a Pi 3A+ using Bluetooth fails
I want to connect my phone using BLE to a Pi 3A+.
For testing I have set up a Bluetooth server using this code.
I have tried connecting with nRF Connect on both a Motorola Moto e5 (Android 8.0) and a ...
0
votes
1answer
19 views
Display monitor closes while running a python code on Rpi zero
I am writing a code using the Google AIY vision kit and its APIs. I have a loop which calls the face_detection model continuously every 30 secs. The loop works perfectly fine for the first 2 ...
1
vote
1answer
312 views
Can't install python packages & pip module not found
I've been trying to install packages on a raspberry pi 4b and I keep having issues.
On the default, python ver. 3.7, I would get setup.py not found.
Then I installed python ver. 3.9 and got the ...
