Develop Reference

PythonKit error "Python library not found. Set the PYTHON_LIBRARY environment variable with the path to a Python library"

I'm using PythonKit with XCode to call spaCy API from swift code. Installed PythonKit from Home-brew, imported it in my project and it built well; however, at runtime I got the error:
Python library not found. Set the PYTHON_LIBRARY environment variable with the path to a Python library.
So I compiled PythonTools (within PythonKit dir, run swift package generate-xcodeproj and open PythonKit.xcodeproj file ) to see which paths of Python library it would find:
/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python37.zip
/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7
/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload
/Users/fernandabrum/Library/Python/3.7/lib/python/site-packages
/usr/local/lib/python3.7/site-packages
If Python libraries are in my system, why I get an error of Python library not found? What am I doing wrong?
OBS.:I also tried to set PYTHON_LIBRARY with export PYTHON_LIBRARY= and the paths found above, but unsuccessful.
Thanks in advance!

In "Hardened Runtime" under Signing and Capabilities: check "Disable Library Validation"
See the answer here: I can't import Python modules in Xcode 11 using PythonKit

I finally solved this problem, in my case, by setting App Sandbox to NO in my app's .entitlements file. I also have Hardened Runtime and Enable App Sandbox set to NO in build settings, but those settings don't work without modifying the entitlements file... at least not in my case.
My understanding is that I can't distribute an app this way, so maybe kinda useless for some, but this is just a simple dev tool for testing some python code that will eventually be called from Vapor, so not a huge deal for me.

I have same issue. I try to use PythonLibrary.useVersion(3) and get same error as yours.

It looks like the python library does not support iOS yet. It is working fine on OS X.

How to properly import libtcod in PyCharm?

I'm trying to set up a roguelike Python project, but I can't seem to be able to import libtcod module into my project. This helloworld crashes, and the IDE keeps telling me that there is no module named libtcodpy.
import libtcodpy
def main():
print('Hello World!')
if __name__ == '__main__':
main()
What is the proper way to import modules into Python projects? I'm used to Java, so I was expecting something along the lines of Maven to manage the dependencies. There indeed seems to be something like that in PyCharm as well, this package manager for the venv, which from what I gather serves to isolate the project-specific stuff from the OS- or python-global stuff:
but libtcod simply isn't present in the rather exhaustive list of modules that appears after clicking on the "+" button, just some other module that has something to do with libtcod library (I guess?). Moreover, all the tutorials I found on setting libtcod up advise one to manually copy over files somewhere or run some command that I suppose does the importing somehow and other such solutions, all of which i tried and none of which worked. I don't want to pollute my project structure by using such hodgepodge ways of handling dependencies if I can at all avoid it.
Q: How do I get libtcod to work in my PyCharm project in the most clean and convention-abiding way possible?

Take a look at this github project called tcod: https://github.com/libtcod/python-tcod/blob/master/README.rst#installation
It's a python port of libtcod.
To install using pip, use the following command:
python -m pip install tcod
If you get the error "ImportError: DLL load failed: The specified module could not be found." when trying to import tcod/tdl then you may need the latest Microsoft Visual C runtime.
Blockquote

Azure ML Python with Script Bundle cannot import module

In Azure ML, I'm trying to execute a Python module that needs to import the module pyxdameraulevenshtein (https://pypi.python.org/pypi/pyxDamerauLevenshtein).
I followed the usual way, which is to create a zip file and then import it; however for this specific module, it seems to never be able to find it. The error message is as usual:
ImportError: No module named 'pyxdameraulevenshtein'
Has anyone included this pyxdameraulevenshtein module in Azure ML with success ?
(I took the package from https://pypi.python.org/pypi/pyxDamerauLevenshtein.)
Thanks for any help you can provide,
PH

I viewed the pyxdameraulevenshtein module page, there are two packages you can download which include a wheel file for MacOS and a source code tar file. I don't think you can directly use the both on Azure ML, because the MacOS one is just a share library .so file for darwin which is not compatible with Azure ML, and the other you need to first compile it.
So my suggestion is as below for using pyxdameraulevenshtein.
First, compile the source code of pyxdameraulevenshtein to a DLL file on Windows, please refer to the document for Python 2/3 or search for doing this.
Write a Python script using the DLL you compiled to implement your needs, please refer to the SO thread How can I use a DLL file from Python? for how to use DLL from Python and refer to the Azure offical tutorial to write your Python script
Package your Python script and DLL file as a zip file, then to upload the zip file to use it in Execute Python script model of Azure ML.
Hope it helps.

Adding the path to pyxdameraulevenshtein to your system path should alleviate this issue. The script checks the system path that the python script is running on and doesn't know where else to look for anything other than the default packages. If your python script is in the same directory as the pyxdameraulevenshtein package in your ZIP file, this should do the trick. Because you are running this within Azure ML and can't be sure of the exact location of your script each time you run it, this solution should account for that.
import os
import sys
sys.path.append(os.path.join(os.getcwd(), 'pyxdameraulevenshtein'))
import pyxdameraulevenshtein

Python & Tide SDK - import external module?

Since python is bundled with the Tide SDK, I can't figure out how to use access external modules. I've tried copying the module folder "Lib/site-packages/YourModuleHere" to the tide SDK directory, and this suggestion here: TIdeSDK Python module import but with no success. The module I'm trying to use is https://github.com/burnash/gspread
Any ideas?
Thanks...

You may try http://www.py2exe.org/index.cgi/Tutorial
to convert your python code to exe with all needed modules then use Ti.Process.createProcess() to call your exe

In current version of TideSDK, loading custom python modules is not supported.It loads default set of Python modules compiled within the SDK.

I've had some luck installing a view external modules by running setup.py install from TideSDK's python.exe
This post helped:
Installing python modules in TideSDK
For Windows 7:
launch powershell
cd into the module folder
run:
C:\ProgramData\TideSDK\Modules\python\1.3.1-beta\python.exe setup.py install
It installs the module in \Lib\site-packages, as it should, and I'm able to use the import function in the python code.
This has worked for PIL and I'm trying to get it to function with pywin32. I'd love to hear if it works for other modules

Web2py import python modules

Hello I'm trying import a module import Image. I recieved this error <type 'exceptions.ImportError'> Cannot import module 'Image'
I looked for a solution and found this Install Python Module in local install of web2py
So "how can I drop modules in app/modules folder" so web2py will check there first when import something or if anyone knows a better solution then the provided solution please help.

If you are using the Windows or Mac web2py binary, they include their own Python interpreter, so they will not use your system's installed version of Python nor see any of its modules. If you have your own version of Python installed, you're better off running web2py from source, which is just as easy (just download and unzip -- run with the web2py.py file rather than web2py.exe or web2py.app).