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Questions tagged [pycall]

54 questions
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2 answers

I have a high-performant function written in Julia, how can I use it from Python?

I have a found a Julia function that nicely does the job I need. How can I quickly integrate it to be able to call it from Python? Suppose the function is f(x,y) = 2x.+y What is the best and most elegent way to use it from Python?
Przemyslaw Szufel
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2 answers

How to convert Pandas DataFrame to Julia DataFrame.jl

I have not been able to find a way to convert my 30,000 x 1,000 Pandas.jl String DataFrame into a DataFrames.jl DataFrame. I have attempted previous stackoverflow solutions but they have not worked. I would like to know what the best way is to…
Jack N
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2 answers

PyCall can't find scipy in Julia

I'm currently rewriting a bunch of matlab code into julia. These codes envolves a lot of math and, particularly, interpolation functions for a 3D mesh. It is easy to deal with this in matlab: all I need to do is to use interp3 function. Once I…
Gabriel Neves
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6
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1 answer

PyCall unable to use pipenv version of python InitError:Incompatible `libpython` detected

Following the instructions on the PyCall.jl readme, I am tying to use a pipenv python when using PyCall for my julia project (in it's own environment). In a terminal, I have activated the python environment using pipenv shell, and then located the…
PeptideWitch
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5
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1 answer

Error while targeting a Julia function into multiprocessing.Process of Python

I am trying to parallelize a code in python by using multiprocessing.Process which targets a Julia function. The function works fine when I call it directly, i.e. when I execute: if __name__ == "__main__": import julia …
Ivan Fernandez Melchor
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2 answers

How to use in Julia a Python package that is not available in Anaconda and needs to be installed via pip

I use Julia 1.6.0 (beta as of today) and would like to use a Python package plfit via PyCall. Unfortunately, plfit is not available in Anaconda and hence I cannot install it using Conda module: julia> using Conda julia> Conda.add("plfit") [ Info:…
Przemyslaw Szufel
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4
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1 answer

can't call julia code from Python with PyCall, whose code calls python back with Pycall

I have a backend algorithm which makes julia calls, I do this via the PyCall package. however, one of the packages in julia recently updated, and it itself makes use of PyCall. no mater what I try to do, I always get an error. If i set pycall in…
Flying Turtle
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4
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1 answer

Julia: Failure to Configure PyCall to use a Different Version

I'm wanting to use a range of Python libraries in my Julia code. I've been trying to use PyCall to access the Python libraries I have installed on my (windows) PC already; however, I have been unable to reconfigure PyCall away from its default…
Caleb
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Julia's PyCall package generates Segmentation fault

I'm currently using PyCall to load a Python library for data compression based on LZ-77 into Julia. The python library is sweetsourcod and I have it installed in my home directory. Within that library, I am using the module lempel_ziv for some…
Computer_Chemist_01
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3
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Julia function to run julia method in python class

I'm learning julia (v1.6) and I'm trying to create a julia function to run a julia method from a python class (pycall equivalent) where the method is a print. I've tried different things and I get different errors either creating the class or…
jfcabreras
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2 answers

Github Actions CI: making PyCall aware of Julia ENV variables

I want to setup a Github action ci.yml file that installs Python and Julia and then builds and tests a package using PyCall. PyCall in this case should make use of the previously installed Python version and not it's default julia-specific Python…
mks
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I want to use OpenCV on Julia via PyCall

I want to use OpenCV on Julia, then I tried to use PyCall. I made my Python environment by pyenv, therefore, I tried below commands; julia> ENV["PYTHON"] = "/Users/MYNAME/.pyenv/shims/python" julia> using Pkg julia> Pkg.add("PyCall") Then, I tried…
Kotaro Nomura
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PyCall receving Numpy and convert to native types element

I'm having some difficulty to convert a numpy matrix to Julia array with native types. So here is my problem: I have a code that returns a numpy matrix with the firsts 73 columns are bool that represents a feature array and the last column the…
Raul Britto
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Parameter of Python function call is reserved word in Julia

I am playing around with the yfinance package (https://pypi.org/project/yfinance/) to learn Julia and ran into an issue with a parameter that is also a reserved word in Julia. using PyCall y = pyimport("yfinance") data = y.download("SPY AAPL",…
Thomas
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Connecting Julia to Weights & Biases over Python

I am trying to use weights&biases for my models written in Julia. I am using WeightsAndBiasLogger.jl and try to test their demo code: using Logging, WeightsAndBiasLogger args = (n_epochs=1_000, lr=1e-3) logger =…
Bloxx
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