pyinstaller

[snippsat]

Try.

pyenv local 3.8.3

Also look here check also this.

Check that ~/.bashrc is correct.
Add last in file as you see.

tom@tom-VirtualBox:~$ cat ~/.bashrc
.....
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi

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

Check PATH.

tom@tom-VirtualBox:~$ echo $PATH
/home/tom/.pyenv/plugins/pyenv-virtualen/shims:/home/tom/.pyenv/shims:~/.pyenv/bin:/home/tom/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games

See that this are there.

/home/tom/.pyenv/shims:~/.pyenv/bin