Progress bar with PyQt4

Question

I have written the following code that parses a text file, breaks it into tokens and inserts these tokens into the database. I want to show the current status of the process using the progress bar but the following code isn't working.

I wrote the following code based on this How to connect pyqtSignal between classes in PyQT

yast_gui.py

class YastGui(QtGui.QMainWindow):
    incrementTokenSignal = QtCore.pyqtSignal(int)
    ...

    def __init__(self):
        self.incrementTokenSignal.connect(self.increment_token_count)
        ...

    def increment_token_count(self, val):
       msg = "{}/{}".format(val, self.total_db_records)
       self.ui.records_processed_value_label.setText(msg)

yast.py

class LogFile(object):
    def __init__(self, file_path, YastGui_object):
        super(LogFile, self).__init__()

        # Gui object
        self.gui = YastGui_object
        self.total_db_records = 0
        ...

    def tokenize(self):
        for i, record in enumerate(myfile):
            ...            
            self.gui.incrementFilterSignal.emit(i + 1)
            settings.session.commit()

According to this PYQT and progress Bar during Long Process, I should create QTheads to deal with the progress bar but I'm not sure on how to do it. Here is the entire Gui file and main file.

You could provide examples of the files that are imported by the gui. — eyllanesc, Feb 28 '17 at 08:29
@eyllanesc You can find the code here https://github.com/jarifibrahim/YAST. You might not understand the code as the project is still in progress. To run it try `python3 yast_gui.py` — Ibrahim, Feb 28 '17 at 08:44
Of course, I have executed it, but it asks me to pass a file, passing it any file sends me an error. — eyllanesc, Feb 28 '17 at 08:45
@eyllanesc The input file is an Apache web server log file with the common log format. — Ibrahim, Feb 28 '17 at 08:58

score 0 · Accepted Answer · edited May 23 '17 at 11:53

0

I found the solution to my problem here Change the value of the progress bar from a class other than my GUI class PyQt4.

The trick is to pass the progressBar object to the function as a parameter and then use progressBar.setValue() inside that function.

edited May 23 '17 at 11:53

Community

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answered Feb 28 '17 at 09:01

Ibrahim

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Progress bar with PyQt4

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