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 ImiportError class not defined
#1
Hi there,

I have an application of which the file structure is as follows each file holds but one class, and that class is the name of the file:
datainput/
    __init__.py
    main.py
    settings.py
    gui/
        __init__.py
        datainput.py
        inputwidget.py
        setupwidget.py
        ui/
            mainwindow.ui
            inputwidget.ui
            setupwidget.ui
at the beginning of each of the files in gui directory, there is:
from PuyQt4 import QtGui
import datainput.gui
and in the mainwindow
each of the subwindows are imported as well as the main gui directory.

From the setupwindow, I get user input data and I am trying to some of it to the label widgets in the mainwindow but I get the following error:
NameError: name 'DataInput' is not defined
Implying that the module has not been imported. Do I have to import it again for it to see the class DataInput? would this not then create a circular import issue?

Thinking further, should I really be creating a separate class in the main folder that will collect the data from the higher level widgets and posting them to the lower level main window using different methods?
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#2
So I have tried to create another class in the main folder, but I still can't seem to access the widgets in the ui classes. Obviously, I can't just create an instance of the class, because the data is in the window that is currently active. So when I try to access the class directly, it just spits out the error that my SetupWidget Class has no attribute 'ui_get_client' which is the name of the field in the form I have made. How do I get this data out of here so that I can then set one of the labels in the main window?
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#3
You don't show the offending code which is important.
does the module datainput.gui contain DataInput?
and if so is it properly indexed with datainput.gui.DataInput ?
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#4
Yes, I realise my issue is a little deeper than this now. Here is the code to my setup window. I am trying to keep all the offending code in one place, ideally in a seperate module eventually like a Factory Class? is that the right phrase?
from PyQt4 import QtGui

import datainput.gui

import couchdb
import time

class SetupWidget(QtGui.QWidget):
    """ Creates the client setup form for the main run sheet. """

    def __init__( self, parent = None, path = ''):
        super(SetupWidget, self).__init__(parent)

        # load the ui
        datainput.gui.loadUi( __file__, self )
        self.move(1210, 250)

        # make connections
        self.ui_ok_act.clicked.connect( self.buttonClicked )

    def buttonClicked( self ):
        server = couchdb.Server("http://192.168.1.10:5984/")
        db = server["database"]
         
        sender = self.sender()
         
        doc = {}
        doc['client'] = self.ui_get_client.text()
         
        doc['driver_coach'] = self.ui_get_dc.text()
        doc['engineer'] = self.ui_get_eng.text()
        doc['tech1'] = self.ui_get_tech1.text()
        doc['tech2'] = self.ui_get_tech2.text()
        doc['vin'] = self.ui_get_vin.text()
        doc['start_odo'] = self.ui_get_odo.text()

        self.datainput = DataInput()
        self.datainput.ui_set_client = doc['client']
         
        event_id = "Alderan"
        client_id = doc["client"]
        timestamp = time.strftime("%d-%m-%Y")    # Readable local datestamp
        doc["_id"] = event_id.replace(" ", "") + client_id.replace(" ", "")
        doc["event"] = event_id
        doc["datestamp"] = timestamp
        doc["form"] = event_id + "_setup"    # Setup form identifier
        db.save(doc)
         
        print("\nEvent data for", client_id)
        for i in doc:
            print(i, "\t", doc[i])
I suspect it is signals and slots I should be using as I could not work out how you would affect a class that was effectively opened and paused.
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#5
So after more research, I think that ultimately this is down to the way I have structured my classes. It seems that I am in the wrong class manipulating the data from the wrong directions. I don't have an answer as yet, but this thread clears up why I am having the problem that I am as I have created a circular import thing going on. This thread has helped me understand it. Unfortunately this is the only help I can give anyone else who finds this thread.

http://stackoverflow.com/questions/16821...her-module
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