python - PyQt Not updating label -


i've created simple application transfer files using paramiko , sftp. wanted have statusbar (a qlabel) inform user when i'm downloading/uploading stuff. so, function upload looks this:

def upload(self):         self.statuslabel.settext('uploading')         local = str(self.uploadlineedit.text())         filename = os.path.basename(local)         remote = "/home/" + self.username + "/testdata/" + filename         self.ftp.put(local, remote)         self.uploadedfilename = filename         self.statuslabel.settext('upload finished')

notice before starting upload change statusbar uploading, , when upload done, change upload finished.

however, happens "uploading" message never displayed on label - goes straight "upload finished". suspect because changes happen after function returns.

how label change @ start of upload process?

you might need force processing of events after changing label text. try adding:

qapplication.processevents()

after setting label text.

please note reason not known me, pyqt , pyside both tend have problems processevents, needs executed multiple times take effect. so, if not work after adding single processevents(), try adding twice, or multiple times.


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