Develop Reference

Python & Wxpython | This program needs access to the screen?

Goal: Use ESPHome Flasher https://github.com/esphome/esphome-flasher
TLDR: Starting esphomeflasher I get this error message:
This program needs access to the screen. Please run with a
Framework build of python, and only when you are logged in
on the main display of your Mac.
Python Setup: https://opensource.com/article/19/5/python-3-default-mac
Mac Setup: Fresh Catalina installation.
Steps:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
brew install pyenv
pyenv install 3.9.1
pyenv global 3.9.1
echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.zshrc
pip install --upgrade pip
Install esphomeflasher: https://github.com/esphome/esphome-flasher
Steps:
pip3 install wxpython
pip3 install esphomeflasher
Problem:
Starting esphomeflasher I get the following error:
This program needs access to the screen. Please run with a
Framework build of python, and only when you are logged in
on the main display of your Mac.
I found this but don't know how to apply it in my case.
https://blurringexistence.net/wxpython-using-virtualenvwrapper-on-osx.html
My .zshrc config:
if command -v pyenv 1>/dev/null 2>&1; then
eval "$(pyenv init -)"
fi
PATH=$(pyenv root)/shims:$PATH
# We want to regularly go to our virtual environment directory
echo 'export WORKON_HOME=~/.virtualenvs' >> .zshrc
# If in a given virtual environment, make a virtual environment directory
# If one does not already exist
echo 'mkdir -p $WORKON_HOME' >> .zshrc
# Activate the new virtual environment by calling this script
# Note that $USER will substitute for your current user
echo '. ~/.pyenv/versions/3.9.1/bin/virtualenvwrapper.sh' >> .bash_profile
export WORKON_HOME=~/.virtualenvs
mkdir -p $WORKON_HOME
export WORKON_HOME=~/.virtualenvs
mkdir -p $WORKON_HOME

How to activate an Anaconda environment in a Singularity recipe

I am trying to create a singularity image and recipe that will create an anaconda environment and then activate said environment so I can build the python wheel of a project in that environment so it's 100% installed and functional after the singularity build is completed.
Bootstrap: docker
From: nvidia/cuda:9.0-cudnn7-devel-ubuntu16.04
%environment
# use bash as default shell
SHELL=/bin/bash
# add CUDA paths
CPATH="/usr/local/cuda/include:$CPATH"
PATH="/usr/local/cuda/bin:$PATH"
LD_LIBRARY_PATH="/usr/local/cuda/lib64:$LD_LIBRARY_PATH"
CUDA_HOME="/usr/local/cuda"
# add Anaconda path
PATH="/usr/local/anaconda3/bin:$PATH"
export PATH LD_LIBRARY_PATH CPATH CUDA_HOME
export MKL_NUM_THREADS=1
export OPENBLAS_NUM_THREADS=1
%setup
# runs on host
# the path to the image is $SINGULARITY_ROOTFS
%post
# post-setup script
# load environment variables
. /environment
# use bash as default shell
echo "\n #Using bash as default shell \n" >> /environment
echo 'SHELL=/bin/bash' >> /environment
# make environment file executable
chmod +x /environment
# default mount paths
mkdir /scratch /data
#Add CUDA paths
echo "\n #Cuda paths \n" >> /environment
echo 'export CPATH="/usr/local/cuda/include:$CPATH"' >> /environment
echo 'export PATH="/usr/local/cuda/bin:$PATH"' >> /environment
echo 'export LD_LIBRARY_PATH="/usr/local/cuda/lib64:$LD_LIBRARY_PATH"' >> /environment
echo 'export CUDA_HOME="/usr/local/cuda"' >> /environment
# updating and getting required packages
apt-get update
apt-get install -y wget git vim build-essential cmake
# creates a build directory
mkdir build
cd build
# download and install Anaconda
CONDA_INSTALL_PATH="/usr/local/anaconda3"
wget https://repo.continuum.io/archive/Anaconda3-5.0.1-Linux-x86_64.sh
chmod +x Anaconda3-5.0.1-Linux-x86_64.sh
./Anaconda3-5.0.1-Linux-x86_64.sh -b -p $CONDA_INSTALL_PATH
# download and install CaImAn
git clone https://github.com/flatironinstitute/CaImAn.git
cd CaImAn
conda env create -n caiman -f environment.yml
source activate caiman
pip install .
caimanmanager.py install
source deactivate
%runscript
# executes with the singularity run command
# delete this section to use existing docker ENTRYPOINT command
%test
# test that script is a success
I've tried both conda activate and source activate and get the same error for both.
+ source activate caiman
/bin/sh: 41: source: not found
ABORT: Aborting with RETVAL=255
Cleaning up...
Is this just something I have to do afterwards by making the image writable?
That would be the next default solution, but it would be nice if the recipe could just work.
*Edit 1
. activate caiman returns.
+ . activate caiman
+ [[ -n ]]
/bin/sh: 4: /usr/local/anaconda3/bin/activate: [[: not found
+ [[ -n ]]
/bin/sh: 7: /usr/local/anaconda3/bin/activate: [[: not found
+ echo Only bash and zsh are supported
Only bash and zsh are supported
+ return 1
ABORT: Aborting with RETVAL=255
Cleaning up...
*Edit 2
By using a newer version of Anaconda, the not found error goes away. All I did was change the Anaconda distribution I got with wget, and I also forced and update just to be doubly sure.
# download and install Anaconda
CONDA_INSTALL_PATH="/usr/local/anaconda3"
wget https://repo.continuum.io/archive/Anaconda3-5.3.1-Linux-x86_64.sh
chmod +x Anaconda3-5.3.1-Linux-x86_64.sh
./Anaconda3-5.3.1-Linux-x86_64.sh -b -p $CONDA_INSTALL_PATH
conda update -n base -c defaults conda
pip install --upgrade pip

If I am not wrong (which is totally possible) the same happens with virtualenv.
The problem is source is not a command, try:
. activate caiman
instead of
source activate caiman
Editing after updated question, check this https://github.com/conda/conda/issues/6639 you might want to investigate what your activate is doing (seems to be looking for non existing files)

how can I find the path of virtualenv python

how can I find the path of virtualenv python ,built with this tutorial?
(i want to find python in this env and use it in my eclipse)
$ sudo pip install virtualenv virtualenvwrapper
$ export WORKON_HOME=$HOME/.virtualenvs
$ source /usr/local/bin/virtualenvwrapper.sh
$ echo -e "\n# virtualenv and virtualenvwrapper" >> ~/.bashrc
$ echo "export WORKON_HOME=$HOME/.virtualenvs" >> ~/.bashrc
$ echo "source /usr/local/bin/virtualenvwrapper.sh" >> ~/.bashrc
$ source ~/.bashrc
$ mkvirtualenv cv -p python3

You can use which to find out which binary will be executed...
For example:
$ which python3
/home/attie/projects/thing/venv/bin/python3
By default it just shows the first match, but you can give the -a argument to show all:
$ which -a python3
/home/attie/projects/thing/venv/bin/python3
/usr/bin/python3

There is VIRTUAL_ENV system variable already set with the path.
Check <your_venv>/bin/activate (which is a simple script) to see how the virtual env is setup in general, but this variable will give you the clean path already:
echo $VIRTUAL_ENV
<full virtual env path>

mkvirtualenv creates virtualenvs in $WORKON_HOME, that is your virtualenv is in $HOME/.virtualenvs/cv/.

Python virtualenvwrapper not creating empty environment when used with Fedora 20

I installed virtualenvwrapper using the following steps in Fedora 20:
$ sudo pip install virtualenvwrapper
$ export WORKON_HOME=$HOME/.virtualenvs
$ export PROJECT_HOME=$HOME/Devel
$ source /usr/local/bin/virtualenvwrapper.sh
$ mkvirtualenv -p /usr/bin/python2 test
So far so good, but when I check the environment, test, that I created it included all the existing python dependencies on my system. Here's a small sample of what's included when the virtualenv is created:
$ pip freeze
tornado==2.2.1
urlgrabber==3.10.1
vboxapi==1.0
virtualenv==1.11.6
virtualenv-clone==0.2.4
virtualenvwrapper==4.3.1
I've never had this issue with Ubuntu so it makes me think the problem is related to how virutalenvwrapper is interacting with Fedora 20. Please let me know what you think.
EDIT: Included the virtualenv section of my .bashrc file after a suggestion to add --no-site-packages
# Virtualenvwrapper
alias pip="pip-python"
export WORKON_HOME=$HOME/virtualenvs
export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'
source /usr/bin/virtualenvwrapper.sh

Problems installing virtualenvwrapper - No module named virtualenvwrapper

I trying install virtualenvwrapper from your official guide http://virtualenvwrapper.readthedocs.org/en/latest/install.html
I install virtualenvwrapper with pip and when I define the environment variables and source
export WORKON_HOME=$HOME/.virtualenvs
export PROJECT_HOME=$HOME/Devel
source /usr/local/bin/virtualenvwrapper.sh
I reboot my shell and I get the following output.
bgarcial#el-pug:~$ bash
/usr/local/bin/python: No module named virtualenvwrapper
virtualenvwrapper.sh: There was a problem running the initialization hooks.
If Python could not import the module virtualenvwrapper.hook_loader,
check that virtualenv has been installed for
VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python and that PATH is
set properly.
bgarcial#el-pug:~$
Despite this, the commands mkvirtualenv and others works. But .. What does this mean? How I can fix it? Thanks

What is the content of your ~/.bashrc file?
You may be calling "virtualenvwrapper" instead of "virtualenvwrapper.sh"
OR:
You may be exporting variables for the current shell that don't persist or propagate to subsequent shells.
The following script will install virtualenvwrapper and configure bash to persist the environment variables, which should in turn make virtualenvwrapper work as expected.
pip install virtualenvwrapper
configure_bashrc(){
echo '
export WORKON_HOME=$HOME/.virtualenvs
export PROJECT_HOME=$HOME/Devel
source /usr/local/bin/virtualenvwrapper.sh
' >> ~/.bashrc
source ~/.bashrc
}
[[ -z $(grep virtualenv ~/.bashrc) ]] && configure_bashrc