Python Forum

Hi everyone,

I saw a project using raspberry pi using python ver 3.4 and the flask framework. My raspberry pi has the Python 2.7, 3.5 and 3.6 Python versions. I have tried running the script but I always getting a bunch of errors. I have tried so many solutions that I have seen in the web and have ask for help in several forums but no luck . I have given up on addressing the error but if you want to know what I am facing, here is the link

https://raspberrypi.stackexchange.com/qu...6909_80181

What I am thinking is maybe I can convert the scripts (just two files) to the latest version of Python? rather than fixing my Python environment which I have been doing for the last 24 hours. . I am new to Python and I want to learn the language plus the flask framework. May I know some tips before I try converting these files to the latest version and is this possible? Thanks in advance!

When you do sudo python web_plantes.py.
python is most likely pointing to python 2,try python3.
I use pyenv then both python and pip is pointing to 3.6.4.
But can easily go back default distro setting.

mint@mint ~ $ python -V
Python 3.6.4

# Go back to default distro setting
mint@mint ~ $ pyenv local system
mint@mint ~ $ python -V
Python 2.7.12
mint@mint ~ $ python3 -V
Python 3.5.2
mint@mint ~ $ pip3 -V
pip 9.0.1 from /usr/local/lib/python3.5/dist-packages (python 3.5)

# install to python 3.5
mint@mint ~ $ pip3 install --user psutil
Collecting psutil
  Using cached psutil-5.4.3.tar.gz
Installing collected packages: psutil
  Running setup.py install for psutil ... done
Successfully installed psutil-5.4.3

# Test that module work in 3.5
mint@mint ~ $ python3
Python 3.5.2 (default, Nov 17 2016, 17:05:23) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import psutil
>>> psutil.__version__
'5.4.3'
>>> 

So you see on the default distro setting i most use python3.
Tutorial Linux Python 3 environment

@snippsat, thank you so for the help the psutil error I was getting is gone


but this time it is throwing this error. See below.


Thanks again.

Do not post picture when you can use code tag.
You should also have posted a link to script that you try to run.
Raspberry Pi Automated Plant Watering with Website

Error:
error 98 address already in use

There is another process already listening on that port,try and other port.

app.run(host='0.0.0.0', port=8000, debug=True)

# Or,now run on this address in browser http://localhost:5000/
app.run(debug=True)

Thank you for the help, will post the results later. :-)

Hi guys,

@snippsat, Thank you for the last solution that you gave it worked now! Your the man!