converting python script to another version

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converting python script to another version - gptura - Mar-11-2018

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 Wall

. 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/questions/80181/no-module-named-psutil?noredirect=1#comment126909_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. Think

. 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!

RE: converting python script to another version - snippsat - Mar-11-2018

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

RE: converting python script to another version - gptura - Mar-11-2018

@snippsat, thank you so for the help the psutil error I was getting is gone
[Image: jr98k3]

but this time it is throwing this error. See below.
[Image: FFbQbf]

Thanks again.

RE: converting python script to another version - snippsat - Mar-11-2018

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)

RE: converting python script to another version - gptura - Mar-11-2018

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

RE: converting python script to another version - gptura - Mar-13-2018

Hi guys,

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