Unable to import Python module
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调研方向
从 LHIPA.py 和 issue 中显示的 Julia 程序开始，然后在显示的 PythonCall 环境中复现 ModuleNotFoundError。将报告的 sys.path 和已安装的 distribution 与导入尝试进行比较；完成的标准是确定责任在于 PythonCall 还是模块/package 的导入，并记录一个经过验证的解决方案。
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描述
To be honest, I'm a little perplexed at how this is failing.
For a background, I need to import a python file that I wrote and is stored in the local directory (LHIPA.py). That file, in turn, needs to import PyWavelets, which has been installed in the .Condapkg environment. I have confirmed in my Julia program as well as in the python file that it is using the python environment created by PythonCall.jl. I've also confirmed, in the Python program, that PyWavelets is an installed package, yet I get this error message: ERROR: Python: ModuleNotFoundError: No module named 'pywavelets'
First the Julia program as well as its output:
...
ENV["JULIA_CONDAPKG_BACKEND"] = "Null"
ENV["JULIA_PYTHONCALL_EXE"] = raw"/Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default/lib/python3.11'"
using PythonCall
println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
println("\n PythonCall is using", PythonCall.python_executable_path())
println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
pth = (@__DIR__) # Path where the python routines are
pyimport("sys").path.append(pth) # append path
println("sys.path = ", pyimport("sys").path)
println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
println("ENV['JULIA_CONDAPKG_BACKEND'] = ", ENV["JULIA_CONDAPKG_BACKEND"] )
println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
println("ENV['JULIA_PYTHONCALL_EXE'] = ", ENV["JULIA_PYTHONCALL_EXE"] )
LH = pyimport("LHIPA")
And the output looks as expected:
PythonCall is using/Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default/bin/python
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sys.path = ['/Users/MattPetersonsAccount/.julia/packages/PythonCall/83z4q/pysrc',
'/Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default/lib/python311.zip',
'/Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default/lib/python3.11',
'/Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default/lib/python3.11/lib-dynload',
'/Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default/lib/python3.11/site-packages',
'/Users/MattPetersonsAccount/Documents/Development/PsychoPy/Spatial n-back 2']
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ENV['JULIA_CONDAPKG_BACKEND'] = Null
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ENV['JULIA_PYTHONCALL_EXE'] = /Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default/lib/python3.11'
The Python file, LHIPA.py, looks like this:
from platform import python_version
print("LHIPA python version is: ",python_version())
import importlib_metadata
dists = importlib_metadata.distributions()
for dist in dists:
name = dist.metadata["Name"]
version = dist.version
print(f'found distribution {name}=={version}')
import sys
print("\n",sys.prefix,"\n")
import math
import PyWavelets
And again, the output is as expected:
LHIPA python version is: 3.11.0
found distribution setuptools==82.0.1
found distribution wheel==0.46.3
found distribution importlib_metadata==8.7.1
found distribution pip==26.0.1
found distribution packaging==26.0
found distribution numpy==2.4.4
found distribution PyWavelets==1.9.0
found distribution zipp==3.23.0
/Users/MattPetersonsAccount/.julia/environments/v1.11/.CondaPkg/.pixi/envs/default
So, I've confirmed that Julia and Python are using the same environment (unless one of them is reporting incorrectly, or there is an error in front of my eyes I am missing) and I've confirmed that PyWavelets in the Python environment. Yet, I get an import error.
Any ideas? Is there something blatantly obvious that I'm missing?
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