How to turn a Qlineedit string into a float?

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Good night, you guys! I’ve been trying to turn the string of a Qline Edit into a float and I can’t!! Always returns the error saying I can’t convert string into float. What can I do to get around it? I’m trying so:

if float(self.qg_nodalloads[str(i)+str(0)].text())  > 0: 
   x =1
python-2.7 pyqt pyqt-4

  • Which string you tried to convert?

  • I am trying both positive and negative integers and decimal numbers. It always returns "could not Convert string to float"

  • Could give examples?

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