from PyQt5 import QtCore, QtGui, QtWidgets
from propertyDialog import Ui_Dialog
import sys

class mainProgram(QtWidgets.QMainWindow, Ui_Dialog):
    def __init__(self, parent=None):

        super(mainProgram, self).__init__(parent)
        self.setupUi(self)
        self.cntPipe = 0
        self.cntLiner = 0
        self.cntCoating = 0
        self.pipeproperty = {}
        self.liner = {}
        self.coating = {}

        self.response_AddPipe.clicked.connect(self.add_pipe)

    def add_pipe(self):
        self.cntPipe += 1
        self.cntLiner = 0
        self.cntCoating = 0
        self.pipeproperty[self.cntPipe] = {}
        pipe_name = self.input_PipeName.text()
        self.pipeproperty[self.cntPipe]["Name"] = pipe_name
        pipe_OD = self.input_PipeOuterDiameter.text()
        self.pipeproperty[self.cntPipe]["Outside diameter"] = pipe_OD
        pipe_WT = self.input_PipeWallThickness.text()
        self.pipeproperty[self.cntPipe]["Wall thickness"] = pipe_WT
        pipe_density = self.input_PipeDensity.text()
        self.pipeproperty[self.cntPipe]["Density"] = pipe_density
        print(self.pipeproperty)

Error:
"C:\Users\USr\Desktop\Work Folder PPM\VirtualEnvironment\Scripts\python.exe" "C:/Users/USr/Desktop/Work Folder PPM/VirtualEnvironment/Scripts/Complete Program.py"
Traceback (most recent call last):
  File "C:/Users/USr/Desktop/Work Folder PPM/VirtualEnvironment/Scripts/Complete Program.py", line 74, in <module>
    main()
  File "C:/Users/USr/Desktop/Work Folder PPM/VirtualEnvironment/Scripts/Complete Program.py", line 67, in main
    nextGui = mainProgram()
  File "C:/Users/USr/Desktop/Work Folder PPM/VirtualEnvironment/Scripts/Complete Program.py", line 17, in __init__
    self.response_AddPipe.clicked.connect(self.add_pipe)
AttributeError: 'mainProgram' object has no attribute 'response_AddPipe'

Process finished with exit code 1

(Aug-05-2019, 01:16 PM)Denni Wrote: As stated on many forums when asking for help it behooves you greatly to give a MRE (Minimal Reproducible Example) of your issue - the key being Reproducible as in if I copy/paste what you have posted I can run it to see what you are seeing so that I can more easily help you with YOUR issue. So this would be a win-win for you in that your question will get answered faster. Giving code snippets that do not allow just copy/paste run means whomever might help you will either not help you or will be delayed in helping you.

Now since you have not included an MRE I will have to guess the issue you are actually having appears somewhere else within your code because other than this code looking more complex than it needs to -- it appears (without being able to actually test it) that it would work just fine assuming everything else (that I cannot see) was coded correctly.

This line calls the (I assume button) clicked event and if the rest is coded correctly should work just fine and call the "self.add_pipe" function without incident.

self.response_AddPipe.clicked.connect(self.add_pipe)

Note personally I would have used a semi-standard prefix of btnAddPipe to indicate this was a button rather than response_ because at a glance yours does not indicate at all that its a normal object like a button and as such could just as well as be anything else.