Python 3.9 alpha how to install psutil?

[lmh1]

I tryed python 3.9 alpha but its failed to install psutil?

pip install psutil
Requirement already satisfied: psutil in /usr/local/lib64/python3.8/site-packages (5.7.0)

[snippsat]

Your pip point to 3.8,you have to point/alias to new version example.

Also using pyenv is better and safer in shall switch and test newer versions.
pyenv Simple Python Version Management
So here a run,this took me couple of minute.

# Test pip
tom@tom:~$ pip -V
pip 19.2.3 from /home/tom/.pyenv/versions/3.8.1/lib/python3.8/site-packages/pip (python 3.8)

# Install 3.9-dev
tom@tom:~$ pyenv install 3.9-dev
Cloning https://github.com/python/cpython...
Installing Python-3.9-dev...
Installed Python-3.9-dev to /home/tom/.pyenv/versions/3.9-dev

# Set 3.9-dev as system-wide version
tom@tom:~$ pyenv global 3.9-dev

# Test pip
tom@tom:~$ pip -V
pip 19.2.3 from /home/tom/.pyenv/versions/3.9-dev/lib/python3.9/site-packages/pip (python 3.9)

# Install psutil
tom@tom:~$ pip install psutil
Collecting psutil
  Downloading .....
Successfully installed psutil-5.7.0

# Test that it work
tom@tom:~$ python
Python 3.9.0a5+ (heads/master:5cd2803, Apr  9 2020, 20:37:13) 
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import psutil
>>>
>>> psutil.__version__
'5.7.0'
>>> exit()
tom@tom:~$ 

[lmh1]

Something misssing?

dnf install -y python3-devel.x86_64
Last metadata expiration check: 0:02:55 ago on to. 09. april 2020 kl. 23.01 +0300.
Package python3-devel-3.8.2-2.fc32.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
[root@PC3# pyenv global 3.9-dev
bash: pyenv: command not found...
[root@PC3]# pip -V
pip 20.0.2 from /usr/local/lib/python3.8/site-packages/pip (python 3.8)
pyenv install 3.9-dev
bash: pyenv: command not found...

Did you also have idea here?
I have issue with this om some windows 10 computer did not know why?

[snippsat]

Something misssing?

Yes,you have not install/setup pyenv correct.
You most follow all step(can not skip anything) here under Setting up pyenv.

Testing that it work first commands.

# Test that it work
tom@tom:~$ pyenv --version
pyenv 1.2.9-149-g0f2d6597

# Update
tom@tom:~$ pyenv update

# Look at available versions 
tom@tom:~$ pyenv install --list

Then as i posted to install 3.9 and set as global version.

---

Windows problem look like a network/firewall issue so look at that.
Try upgrade pip.

python -m pip install –upgrade pip

Look at this post for other stuff to try.

[lmh1]

Still did not works, pyenv --version
bash: pyenv: command not found...

This is writed for ubuntu\mint\kubuntu not for fedora\opensuse.

I have upgraded pip so that is not issue.
Its works with other expendition.

I get Command 'pyenv' not found, did you mean:

command 'pyvenv' from deb python3-venv (3.8.2-0ubuntu2)
command 'p7env' from deb libnss3-tools (2:3.49.1-1ubuntu1)

Try: sudo apt install <deb name>

fatal: could not create leading directories of '/plugins/pyenv-virtuale': Ikke tilgang

on ubuntu 20.04

[snippsat]

This is writed for ubuntu\mint\kubuntu not for fedora\opensuse.

Yes,it mention in tutorial that is for Ubuntu\Mint.
I give a link in tutorial for other distros.

Look at wiki for eg Mac OS X and other distros.

Here tutorial for CentOS/Fedora.

[lmh1]

I also have question for ubuntu\mint:

Traceback (most recent call last):
File "menu.py", line 1, in <module>
from tkinter import Tk, Menu , messagebox
ImportError: No module named tkinter

i have installed python-tk (2.7.18-1).
and python3-tk (3.8.2-1ubuntu1)

Not sure what more can be wrong?

[snippsat]

You are running the Tkinter code with Python 2,that's why you get that error message.
Bye default not using pyenv,it's python3 and pip3 to use Python 3.

[lmh1]

After this, just append the pyenv initializator command on your “.bashrc” file
Remark: If you use ZSH instead of Bash, update the “.zshrc” file.

export PATH="~/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

After that, logout/login or exec this command to reload configuration; (in case of zsh, change this file to .zshrc;

source ~/.bashrc

Did not understand this?

Tested with.

Traceback (most recent call last):
File "test.py", line 18, in <module>
from pip._internal.operations.prepare import Installed
ImportError: cannot import name 'Installed' from 'pip._internal.operations.prepare' (/usr/lib/python3/dist-packages/pip/_internal/operations/prepare.py)

Traceback (most recent call last):
File "test.py", line 56, in <module>
root.title( "Testprogram " + platform.linux_distribution()[0] + platform.linux_distribution()[1])
AttributeError: module 'platform' has no attribute 'linux_distribution'

Why did this only failed on ubuntu not with fedora? the first one.
I also have issue its hard to find out charges for release. So hard to know what its charged.

https://www.programcreek.com/python/exam...stribution
it is outdated code?

[snippsat]

Did not understand this?

You need to open ~/.bashrc in a editor and add those line last.
If fedora dos not comes with nano.

sudo dnf install nano

Then you can follow in my tutorial under 3. Add to ~/.bashrc

The other stuff do i not want to look at now,get one thing to work first.
You struggle now bit with basic usage of OS's and Python