Jump to content

Ultimaker Cura 3.6 - PlugIn with .pyd


MadCooper

Recommended Posts

Posted (edited) · Ultimaker Cura 3.6 - PlugIn with .pyd

Hello,

 

I've been educating myself in Ultimaker Cura 3.6 by writing my own Plugin. At this point I've no problems and everything is working fine. I now decided to convert one file of my Plugin from .py to .pyd with Cython. Now Ultimaker does not even load this Plugin anymore, saying:


2019-04-05 14:46:01,337 - ERROR - [MainThread] UM.Logger.logException [88]:     from . import J_Do_It_2
2019-04-05 14:46:01,337 - ERROR - [MainThread] UM.Logger.logException [88]: ImportError: cannot import name 'J_Do_It_2'

 

Does Ultimaker Cura not support Plugins with precompiled/converted .pyd files?

 

The main file MPFWriter.py

 

import tempfile
import os
import io

from typing import cast
from . import J_Do_It_2

from UM.Application import Application
from UM.Logger import Logger
from UM.Mesh.MeshWriter import MeshWriter #The writer we need to implement.
from UM.MimeTypeDatabase import MimeTypeDatabase, MimeType
from UM.PluginRegistry import PluginRegistry #To get the g-code writer.

class MPFWriter(MeshWriter):

    version = 3

    def __init__(self):
        super().__init__()

    
    def write(self, stream, nodes, mode = MeshWriter.OutputMode.TextMode):

        #Store the g-code from the scene.
        temp_gcode = tempfile.NamedTemporaryFile("w", delete=False)
        name = temp_gcode.name
        gcode_writer = cast(MeshWriter, PluginRegistry.getInstance().getPluginObject("GCodeWriter"))
        success = gcode_writer.write(temp_gcode, None)
        #converter = J_Do_It.DoIt()
        if not success: #Writing the g-code failed. 
            self.setInformation(gcode_writer.getInformation())
            return False

        path = os.path.dirname(os.path.abspath(__file__))
        try: 

            head = io.open((str(path) +"/HeadAndEnd/head.txt"), "r", encoding='utf8')
            end = io.open((str(path) + "/HeadAndEnd/end.txt"), "r", encoding='utf8')
        except EnvironmentError as e:
            if head:
                Logger.log("e", "Cannot open or find HeadFile")
            elif end:
                Logger.log("e", "Cannot open or find EndFile")
            else: 
                Logger.log("Something went wrong")
            return False

        try: 
            J_Do_It_2.DoIt.openFile(name, stream.name, head, end)
            
            
            
        except EnvironmentError as e:
            if temp_gcode:
                Logger.log("e", "Cannot create temp-File {pathTempFile}".format(temp_gcode=temp_gcode))
            return False

        temp_gcode.close()
        os.remove(temp_gcode.name)


        return True

 

The calculator file J_Do_It_2.pyd (before it is converted into pyd and shortened):

import io

class DoIt():

    #Vars

    @classmethod
    def openFile(self, pathSource, pathTarget, head, end):
        #do something

    @classmethod
    def readLine(self, line):

        #do something

    @classmethod
    def replaceVars(self, elements):
        #do something

    @classmethod
    def calculate(self, value, containsXYZ):
        #do something

 

Edited by MadCooper
  • Link to post
    Share on other sites

    Posted · Ultimaker Cura 3.6 - PlugIn with .pyd

    What do you want to achieve by converting the plugin to a pyd file?

     

    All plugins are distributed as .py files. You may be able to get it to work with .pyc files instead if you want to obfuscate your code.

  • Link to post
    Share on other sites

    Posted · Ultimaker Cura 3.6 - PlugIn with .pyd
    On ‎4‎/‎5‎/‎2019 at 8:02 PM, ahoeben said:

    What do you want to achieve by converting the plugin to a pyd file?

    A Professor (An engineer) asked me, if Plugins can use .DLL files. Searching for how to use .dll-files in python, I found this hole .pyd thing. So, I just wanted to try it. 

     

    And yes, i am working on Windows. 

  • Link to post
    Share on other sites

    Posted · Ultimaker Cura 3.6 - PlugIn with .pyd

    @MadCooper There seems to be something missing in your code for your pyd file. Cura (actually the embedded Python interpreter) should be able to pick it up normally. I've embedded PyWin32 into my CAD plugins and it comes with many pyd files and works fine.

    You probably want to take a look into SWIG or Cython to be able to code with fewer hassles and let one of these projects generate the C/C++ code you need.

     

    Maybe this is something for you! 🙂 

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
         
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    ×
    ×
    • Create New...