Psychopy install from within julia

@psychopy and @peircej, fwiw... it's totally doable to run psychopy code from within @julialang via PyCall.jl, which is pretty cool!

Just had to install psychopy via conda+pip (have some notes on how to get this to work for the correction python version used by PyCall) pic.twitter.com/aOcHJCYkch

— Denis Schluppeck (@schluppeck) April 7, 2019

Following install instructions from www.psychopy.org, I managed to get some sample applications to run from within julia. NB: at this point this has only been tested for code, under a recent version of macOS, julia v"1.1.0", and PyCall.jl compiled for python v"3.7.2" (not experiments made in Builder). But it's kind of cool that this all works out of the box!

ds 2019-04-07

• https://julialang.org/
• https://www.psychopy.org/

install instructions, julia version

Installing PsychoPy for the command line

with some help from PyCall.jl dicourse page: https://discourse.julialang.org/t/pycall-pre-installing-a-python-package-required-by-a-julia-package/3316/16

You will probably first have to install Conda.jl and PyCall.jl first.

using Pkg
# ] to get into REPL mode for Pkg management
add Conda
add PyCall

Then you are ready to do to the PsychoPy install for the command line

using Conda, PyCall

println("Running dependency install for the psychopy package.")

# add conda packages like this
println("via conda...")

Conda.add(["numpy", "scipy", "matplotlib", "pandas", "pyopengl", "pillow", "lxml",
"openpyxl", "xlrd", "configobj", "pyyaml", "gevent", "greenlet",
"msgpack-python", "psutil", "pytables",
"requests[security]",  "cffi",  "seaborn",  "wxpython",  "cython",
"future", "pyzmq", "pyserial"]
)

# instead of conda -c , add a channel first
Conda.add_channel("conda-forge")
Conda.add(["pyglet", "pysoundfile", "python-bidi", "moviepy", "pyosf"])

# add the following NOT via conda, via pip
println("via pip...")

# Change that to whatever packages you need.
PACKAGES = ["zmq", "json-tricks", "pyparallel", "sounddevice", "pygame", "pysoundcard", "psychopy_ext", "psychopy"]

# Use eventual proxy info
proxy_arg=String[]
if haskey(ENV, "http_proxy")
    push!(proxy_arg, "--proxy")
    push!(proxy_arg, ENV["http_proxy"])
end

# Import pip
try
    @pyimport pip
catch
    # If it is not found, install it
    println("Pip not found on your sytstem. Downloading it.")
    get_pip = joinpath(dirname(@__FILE__), "get-pip.py")
    download("https://bootstrap.pypa.io/get-pip.py", get_pip)
    run(`$(PyCall.python) $(proxy_arg) $get_pip --user`)
end

println("Installing required python packages using pip")
run(`$(PyCall.python) $(proxy_arg) -m pip install --user --upgrade pip setuptools`)
run(`$(PyCall.python) $(proxy_arg) -m pip install --user $(PACKAGES)`)

then try it out

I have a julia alias in my .bash_profile to make calling it in Terminal easier:

alias julia='/Applications/Julia-1.1.app/Contents/Resources/julia/bin/julia'

Then julia can be called from Terminal. Once there... the usual stuff applies. If you want to use a package/library include it with using and then you are off.

using PyCall

# from psychopy import visual, core
# is done this way:
visual = pyimport("psychopy.visual")
core = pyimport("psychopy.core")
event = pyimport("psychopy.event")

#create a window
mywin = visual.Window([800,600], monitor="testMonitor", units="deg")

Check out two small sample programs to demonstrate how this works:

• psychopy tutorial 1 - display a moving grating
• sound example h/t https://github.com/lindeloev/psychopy-course

in python this was:

The python version of the installs

conda create -n psypy python=2.7
conda activate psypy
conda install numpy scipy matplotlib pandas pyopengl pillow lxml openpyxl xlrd configobj pyyaml gevent greenlet msgpack-python psutil pytables requests[security] cffi seaborn wxpython cython future pyzmq pyserial
conda install -c conda-forge pyglet pysoundfile python-bidi moviepy pyosf
pip install zmq json-tricks pyparallel sounddevice pygame pysoundcard psychopy_ext psychopy