python - [solved]resetItems PyQt - how to reload script -



python - [solved]resetItems PyQt - how to reload script -

this part of script. can't reload script (without stopping it) when info in file.txt changed.

class stocklistmodel(qtcore.qabstractlistmodel): def __init__(self, stockdata = [], parent = none): qtcore.qabstractlistmodel.__init__(self, parent) self.stockdata = stockdata self.file_check = qtcore.qfilesystemwatcher(['/home/user/desktop/file.txt']) self.file_check.filechanged.connect(self.resetitems) def getitems(self): homecoming stockdata @qtcore.pyqtslot(str) def resetitems(self, path): self.beginresetmodel() self.stockdata = self.stockdata #without , next line have same self.endresetmodel() #error if __name__ == '__main__': app = qtgui.qapplication(sys.argv) app.setstyle("plastique") tableview = qtgui.qtableview() tableview.show() = os.popen("cat /home/user/desktop/file.txt") = a.read() time_variable = qtcore.qstring("%s"%a) model = stocklistmodel([time_variable]) tableview.setmodel(model) sys.exit(app.exec_())

when run script , update file error: attributeerror: 'qstring' object has no attribute 'beginresetmodel'

what should alter refresh data?

you getting error because filechanged signal of qfilesystemwatcher emits string, beingness received resetitems(), expecting instance of stocklistmodel. self reference doesn't passed because file_check has been defined static , not bound particular instance.

try moving file_check constructor instance variable , modifying resetitems() take string parameter emitted filechanged.

edit: added code clarity

constructor:

def __init__(self, stockdata = [], parent = none): qtcore.qabstractlistmodel.__init__(self, parent) self.stockdata = stockdata self.file_check = qtcore.qfilesystemwatcher(['/home/user/desktop/file.txt']) self.file_check.filechanged.connect(self.resetitems)

resetitems:

@qtcore.pyqtslot(str) def resetitems(self, path): self.beginresetmodel() ...

python linux pyqt

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