import cadquery throw "OSError[WinError 193] %1 is not a valid Win32 application"

[tp1415926535]

Installing CadQuery via pip, the script :

import cadquery

throw error:

Traceback (most recent call last):
  File "D:\python scripts\cadTrans.py", line 1, in <module>
    import cadquery
  File "D:\Python3.9.13\lib\site-packages\cadquery\__init__.py", line 22, in <module>
    from .occ_impl import exporters
  File "D:\Python3.9.13\lib\site-packages\cadquery\occ_impl\exporters\__init__.py", line 10, in <module>
    from ...cq import Workplane
  File "D:\Python3.9.13\lib\site-packages\cadquery\cq.py", line 61, in <module>
    from .sketch import Sketch
  File "D:\Python3.9.13\lib\site-packages\cadquery\sketch.py", line 21, in <module>
    from .hull import find_hull
  File "D:\Python3.9.13\lib\site-packages\cadquery\hull.py", line 3, in <module>
    from numpy import lexsort, argmin, argmax
  File "D:\Python3.9.13\lib\site-packages\numpy\__init__.py", line 139, in <module>
    from . import _distributor_init
  File "D:\Python3.9.13\lib\site-packages\numpy\_distributor_init.py", line 26, in <module>
    WinDLL(os.path.abspath(filename))
  File "D:\Python3.9.13\lib\ctypes\__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: [WinError 193] %1  is not a valid Win32 application
[Finished in 1.3s]

python version:

Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)] on win32.

cadquery version:

Name: cadquery
Version: 2.2.0
Summary: CadQuery is a parametric  scripting language for creating and traversing CAD models
Home-page: https://github.com/CadQuery/cadquery
Author: David Cowden
Author-email: [email protected]
License: Apache Public License 2.0
Location: d:\python3.9.13\lib\site-packages
Requires: cadquery-ocp, casadi, ezdxf, multimethod, nlopt, nptyping, path, typish
Required-by:

[tp1415926535]

It looks like it will only run with 32 bit python, I reinstalled python and it stopped giving me this error and instead gave me

Traceback (most recent call last):
  File "D:\python scripts\cadTrans.py", line 1, in <module>
    import cadquery.ocp
  File "D:\Python3.9.13\lib\site-packages\cadquery\__init__.py", line 10, in <module>
    from .occ_impl.geom import Plane, BoundBox, Vector, Matrix, Location
  File "D:\Python3.9.13\lib\site-packages\cadquery\occ_impl\geom.py", line 5, in <module>
    from OCP.gp import (
ModuleNotFoundError: No module named 'OCP'

Although I have installed OCP using pip:

> pip install ocp
Requirement already satisfied: ocp in d:\python3.9.13\lib\site-packages (0.1.9)
Requirement already satisfied: ocp-windows-amd64>=0.1.9 in d:\python3.9.13\lib\site-packages (from ocp) (0.1.9)

> pip install cadquery-ocp
Requirement already satisfied: cadquery-ocp in d:\python3.9.13\lib\site-packages (7.7.0a0)

Maybe ocp only supports 64-bit in Windows. So I still can't import properly.

[jmwright]

@tp1415926535 Which version of Windows are you running? Also, can you post the pip install line you used and the output from that?

[tp1415926535]

version of Windows:

OS Name:             Microsoft Windows 10 Home 
OS Version:          10.0.19044 N/A Build 19044.2486
OSArchitecture:      64-bit

pip install line (64-bit python):

> pip install cadquery
WARNING: Ignoring invalid distribution -ip (d:\python3.9.13\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (d:\python3.9.13\lib\site-packages)
Requirement already satisfied: cadquery in d:\python3.9.13\lib\site-packages (2.2.0)
Requirement already satisfied: cadquery-ocp<7.8,>=7.7.0a0 in d:\python3.9.13\lib\site-packages (from cadquery) (7.7.0a0)
Requirement already satisfied: nptyping==2.0.1 in d:\python3.9.13\lib\site-packages (from cadquery) (2.0.1)
Requirement already satisfied: path in d:\python3.9.13\lib\site-packages (from cadquery) (16.6.0)
Requirement already satisfied: ezdxf in d:\python3.9.13\lib\site-packages (from cadquery) (1.0.1)
Requirement already satisfied: nlopt in d:\python3.9.13\lib\site-packages (from cadquery) (2.7.1)
Requirement already satisfied: typish in d:\python3.9.13\lib\site-packages (from cadquery) (1.9.3)
Requirement already satisfied: casadi in d:\python3.9.13\lib\site-packages (from cadquery) (3.5.5)
Requirement already satisfied: multimethod<2.0,>=1.7 in d:\python3.9.13\lib\site-packages (from cadquery) (1.9.1)
Requirement already satisfied: typing-extensions in d:\python3.9.13\lib\site-packages (from nptyping==2.0.1->cadquery) (4.2.0)
Requirement already satisfied: numpy>=1.20.0 in d:\python3.9.13\lib\site-packages (from nptyping==2.0.1->cadquery) (1.24.1)
Requirement already satisfied: pyparsing>=2.0.1 in d:\python3.9.13\lib\site-packages (from ezdxf->cadquery) (2.4.7)
WARNING: Ignoring invalid distribution -ip (d:\python3.9.13\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (d:\python3.9.13\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (d:\python3.9.13\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (d:\python3.9.13\lib\site-packages)
WARNING: You are using pip version 22.0.4; however, version 23.0 is available.
You should consider upgrading via the 'D:\Python3.9.13\python.exe -m pip install --upgrade pip' command.

I also noticed that with 32-bit python, reinstalling cadquery will be version 1.2, very contradictory.

[tp1415926535]

It's finally fixed! I installed and used it in a virtual machine with no errors reported. The pip install line like this:

> pip install cadquery --user
Requirement already satisfied: cadquery in c:\users\User1\appdata\roaming\python\python39\site-packages (2.2.0)
Requirement already satisfied: nptyping==2.0.1 in c:\users\User1\appdata\roaming\python\python39\site-packages (from cadquery) (2.0.1)
Requirement already satisfied: casadi in c:\python39\lib\site-packages (from cadquery) (3.5.5)
Requirement already satisfied: path in c:\users\User1\appdata\roaming\python\python39\site-packages (from cadquery) (16.6.0)
Requirement already satisfied: cadquery-ocp<7.8,>=7.7.0a0 in c:\python39\lib\site-packages (from cadquery) (7.7.0a0)
Requirement already satisfied: typish in c:\users\User1\appdata\roaming\python\python39\site-packages (from cadquery) (1.9.3)
Requirement already satisfied: nlopt in c:\users\User1\appdata\roaming\python\python39\site-packages (from cadquery) (2.7.1)
Requirement already satisfied: ezdxf in c:\users\User1\appdata\roaming\python\python39\site-packages (from cadquery) (1.0.1)
Requirement already satisfied: multimethod<2.0,>=1.7 in c:\users\User1\appdata\roaming\python\python39\site-packages (from cadquery) (1.9.1)
Requirement already satisfied: numpy>=1.20.0 in c:\python39\lib\site-packages (from nptyping==2.0.1->cadquery) (1.24.2)
Requirement already satisfied: typing-extensions in c:\users\User1\appdata\roaming\python\python39\site-packages (from nptyping==2.0.1->cadquery) (4.4.0)
Requirement already satisfied: pyparsing>=2.0.1 in c:\users\User1\appdata\roaming\python\python39\site-packages (from ezdxf->cadquery) (3.0.9)

After comparing I upgraded or uninstalled different versions of the wheel, found to be caused by "numpy". Maybe I had installed a different bit version by mistake earlier. Anyway, no errors are reported now.