Question

I have some strings of variables names, that must initially be strings (due to file IO).
The variables these correspond to are variable names of PyQt4 widgets, embed in two classes.

I need these strings able to be converted to the actual variable names to use them in functions.
(Kind of like how you ‘int’ a string of a number)

Here’s the code (Showing the Class Madness)

FIRST FILE

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        self.VariableName = QWidget(whatever)

SECOND FILE

from FIRST_FILE import Ui_MainWindow

class Start(QtGui.QMainWindow):
    def __init__(self, parent = None):
        QtGui.QWidget.__init__(self, parent)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
    def ResetDropBoxes(self):
        X = "VariableName"
        self.ui.X.Function()

Some might recognise this as the format of python code generated by Pyuic4 (Qt Designer)

The last two lines of the Second File are the trouble.
I get the error message “Ui_MainWindow() has no attribute ‘X'”.

I had no idea where to go with this, except an attempt with ‘eval’.
I tried things such as…

X = self.ui.eval("VariableName")

This prompted errors “Ui_MainWindow() has no attribute ‘eval’

X = eval("VariableName")

“VariableName is not defined”

X = "VariableName"
eval(self.ui.X.Function())

“Ui_MainWindow() has no attribute ‘X'”

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I could use any and all help for this matter!
I feel that eval gets me a step closer, but using these nested classes inhibits it!

HALP’?!

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DETAILS:
– Python 2.7.1
– Windows 7 (32 bit)
– IDLE 1.8
– PyQt4
– Qt Designer

Answer 1

Try

getattr(self.ui, VariableName).Function()

See here for more info on getattr.