Is it possible to create an object where object name is specified by a string
E.g.
create_object(QtGui.QLineEdit, 'myname')
myname.setText = 'created!'
That is
create_object(QtGui.QLineEdit, 'myname')
equals to
myname = QtGui.QLineEdit(self)
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3 Answers
To create local variable, you can get the dictionary of global variables using globals() function . Example -
gbl = globals()
gbl['myname'] = QtGui.QLineEdit
gbl['test'] = 1234
test
>> 1234
For local variables with locals() function , which returns the dictionary of local variables (a copy of the local namespace) , you may use this to set the variable, only if you are outside a function and directly in the script part, but setting to the dictionary provided by locals() would not work inside a function (you will not be able to access that variable , even in that function) , when using it outisde the function it has exactly same effect as globals().
13 Comments
Daniel
You cannot use
locals to define local variables.
Anand S Kumar
Yes, you can, did you try it?
Daniel
You probably didn't try it.
Anand S Kumar
What do you mean, my above pasted code works (If you take out the Qt stuff, which is something specific to OP's question). Please, note local() means local to the script, not local to function
Daniel
only because
locals() is globals(). |
You can use globals. Example:
class A:
a = 'Hello'
test = globals()['A']
print test.a #It will print 'Hello'
For more information: http://www.diveintopython.net/html_processing/locals_and_globals.html
