I'm fairly new to Python, but have gotten it set up and working in Visual Studio Code (Note: this is not the same as Visual Studio).
I'm working through a GUI tutorial for Qt for Python, using the PySide2 package. Most symbols are giving me code completion through the VS Code's Microsoft Python extension's Intellisense feature, but one, the PySide2.QtCore.Qt module is not.
Intellisense still does give some symbols, but they are all symbols with double underscores at the start and end, and one named mro. As an example, the working PySide2.QtCore.Qt.AlignHCenter symbol, which compiles and works fine, does not show up for tab completion/Intellisense.
If I type in directly QtCore.Qt.AlignHCenter, it is accepted and works fine.
Question
How do I get Intellisense/tab completion to work for the PySide2.QtCore.Qt module in the PySide2 package?
More Information
PySide2 is an open source Python adapter for Qt. There is a mostly identical separate Python binding for Qt, PyQt5, with the primary difference being licensing (see What's the difference between PyQt5 and PySide2).
The Qt module appears to be a virtual module, at least in PySide2, per this answer, which might be part of the issue, although substituting PyQt5.Qt in for PySide2.QtCore.Qt doesn't seem to work either (i.e. Intellisense seems broken for both binding projects).
I have the following extensions installed in VS Code that appear relevant (many more for generic things and other languages also installed):
Python 2019.9.34474Python Extension Pack 1.6.0(pack with Python, MagicPython, Jinja, Django, VS IntelliCode)Qt for Python 0.4.1(PyQt5 and PySide2 support)
Things I've tried
I have working code, posted below. The QtCore.Qt.AlignHCenter in line 27 is the element that won't provide any Intellisense under the Qt symbol.
I've tried importing the Qt module in various ways, including directly from PyQt5:
import PyQt5.Qt
(NOTE: per comments, PyQt5 is a different project from PySide2, but most of the API is the same and the Qt for Python VS Code extension supports both binding sets for Qt)
Which appears to do nothing.
I've tried other methods to get the specific elements to be imported, such as:
from PySide2.QtCore import Qt
from PySide2.QtCore.Qt import *
The second line here fails, saying there is an unresolved import:
The first line importing Qt works to provide Qt as a known module, so I can enter just Qt.xxx rather than QtCore.Qt.xxx, but Intellisense still fails the same way:
The code:
### PyDownloader
# Simple GUI to Download a file from a URL
#
# Can test with this URL:
# - https://github.com/gitextensions/gitextensions/raw/master/.nuget/NuGet.exe
# which is an ~ 5Mb file
import sys
from PySide2 import QtWidgets, QtGui, QtCore
import urllib.request
class Downloader(QtWidgets.QDialog):
def __init__(self, parent=None):
QtWidgets.QDialog.__init__(self)
self.url = QtWidgets.QLineEdit()
self.save_location = QtWidgets.QLineEdit()
self.progress = QtWidgets.QProgressBar()
download = QtWidgets.QPushButton("Download")
self.url.setPlaceholderText("URL")
self.save_location.setPlaceholderText("File save location")
self.progress.setValue(0)
self.progress.setAlignment(QtCore.Qt.AlignHCenter)
layout = QtWidgets.QVBoxLayout()
layout.addWidget(self.url)
layout.addWidget(self.save_location)
layout.addWidget(self.progress)
layout.addWidget(download)
self.setLayout(layout)
self.setWindowTitle("PyDownloader")
self.setFocus()
download.clicked.connect(self.download)
def download(self):
url = self.url.text()
save_location = self.save_location.text()
urllib.request.urlretrieve(url, save_location, self.report)
# Assume success
self.progress.setValue(100)
def report(self, blocknum, blocksize, totalsize):
readsofar = blocknum * blocksize
if totalsize > 0:
percent = readsofar * 100 / totalsize
else:
# Just have it progress continuously as each block comes in
percent = (blocknum % 100)
self.progress.setValue(int(percent))
def main():
app = QtWidgets.QApplication(sys.argv)
dialog = Downloader()
dialog.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
