CODEWITHSUNDEEP
pythonpyqtpyqt5desktop-application
Graygood
Graygood

Reputation: 373

Remove items from QListWidget in PyQt5

I am trying to make a refresh button in pyqt5. I am building a desktop app. I wrote the code that scans particular folder and saves filenames and their paths as an array.

Array values are added to QListWidget as items

self.sampleChoose_list.addItems(sample_directory[0])

I am trying to make a function that refreshes values of the array and passes it to QListWidget.

Something like this

self.refreshSamples.clicked.connect(self.refreshSample)

def refreshSample(self): 
    sample_directory = []
    sample_files = []
    for (dirpath, dirnames, filenames) in walk('./Samples'):
        filenames = [f for f in filenames if not f[0] == '.']
        sample_files.extend(filenames)
        break
    the_dir = "Samples"
    paths = [os.path.abspath(os.path.join(the_dir,filename)) for filename in os.listdir(the_dir) if not filename.startswith('.')]    

    sample_directory.append(sample_files)
    sample_directory.append(paths)

    self.sampleChoose_list.addItems(sample_directory[0])

The problem that I struggle with is: when I push refresh button, new items get added, but the old ones are not deleted. How to remove items from QListWidget?

Upvotes: 9

Views: 31854

Answers (1)

Skandix
Skandix

Reputation: 1984

use QListWidget.clear() and it

Removes all items and selections in the view.

for am more selective approuch you can use QListWidget.takeItem( index ), it

Removes and returns the item from the given row in the list widget

Official Docs: clear()
Official Docs: takeItem()

Upvotes: 26

Related Questions