QtCreator numpy import

ollarch · wrote on 17 May 2021, 15:45

Hi,

I have installed (Windows 10):
Qt 5.15.2
QtCreator 4.14.2

I also installed Miniconda and created a virtual environment "dl_v1" where I installed PySide2 using pip and Numpy 1.20.2 using conda command.

I created a new Python Project on QtCreator. I configured the Python interpreter to use the new created environment. This application only shows the main window.

When trying to import numpy library I get this error:

17:06:03: Starting E:\Miniconda3\envs\dl_v1\python.exe -u "E:\Test001\main.py"...
Traceback (most recent call last):
  File "E:\Miniconda3\envs\dl_v1\lib\site-packages\numpy\core\__init__.py", line 22, in <module>
    from . import multiarray
  File "E:\Miniconda3\envs\dl_v1\lib\site-packages\numpy\core\multiarray.py", line 12, in <module>
    from . import overrides
  File "E:\Miniconda3\envs\dl_v1\lib\site-packages\numpy\core\overrides.py", line 7, in <module>
    from numpy.core._multiarray_umath import (
ImportError: DLL load failed while importing _multiarray_umath: No se puede encontrar el módulo especificado.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "E:\Test001\main.py", line 5, in <module>
    import numpy as np
  File "E:\Miniconda3\envs\dl_v1\lib\site-packages\numpy\__init__.py", line 145, in <module>
    from . import core
  File "E:\Miniconda3\envs\dl_v1\lib\site-packages\numpy\core\__init__.py", line 48, in <module>
    raise ImportError(msg)
ImportError: 

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the numpy C-extensions failed. This error can happen for
many reasons, often due to issues with your setup or how NumPy was
installed.

We have compiled some common reasons and troubleshooting tips at:

    https://numpy.org/devdocs/user/troubleshooting-importerror.html

Please note and check the following:

  * The Python version is: Python3.9 from "E:\Miniconda3\envs\dl_v1\python.exe"
  * The NumPy version is: "1.20.2"

and make sure that they are the versions you expect.
Please carefully study the documentation linked above for further help.

Original error was: DLL load failed while importing _multiarray_umath: No se puede encontrar el módulo especificado.

17:06:04: E:\Miniconda3\envs\dl_v1\python.exe exited with code 1

Finally I tested to run it using command line and it works without any error. I also have tryied to run it using Visual Studio Code and it also works (just an empty main window).

The code is this. I anly added the import of numpy lib.

# This Python file uses the following encoding: utf-8
import sys
import os

import numpy as np

from PySide2.QtWidgets import QApplication, QMainWindow
from PySide2.QtCore import QFile
from PySide2.QtUiTools import QUiLoader


class DLTest001(QMainWindow):
    def __init__(self):
        super(DLTest001, self).__init__()
        self.load_ui()

    def load_ui(self):
        loader = QUiLoader()
        path = os.path.join(os.path.dirname(__file__), "form.ui")
        ui_file = QFile(path)
        ui_file.open(QFile.ReadOnly)
        loader.load(ui_file, self)
        ui_file.close()

if __name__ == "__main__":
    app = QApplication([])
    widget = DLTest001()
    widget.show()
    sys.exit(app.exec_())

Is there something that I'm missing?

Thanks,