Symbol navigation unpredictable and slow when using PySide

Issue Type: Bug

• Save this as a .py file:

from PySide import QtCore, QtGui
class Something():
	def __init__(self):
		pass
def main():
	pass
obj = Something()

• Press ctrl+shift+O
• On the first try it usually symbols load fast and as expected
• Now press ctrl+shift+O again
• Message ‘no symbol information for the file’ appears in lineEdit but symbols load within 2-6 seconds
• If you make a change to e.g. the vscode settings at this point it works again once and then you can basically repeat the above pattern
• If you remove the ‘from PySide import QtCore, QtGui’ line, everything works fine This issue affects code completion as well.

Extension version: 2018.4.0 VS Code version: Code 1.23.1 (d0182c3417d225529c6d5ad24b7572815d0de9ac, 2018-05-10T17:11:17.614Z) OS version: Windows_NT x64 10.0.17134

System Info

Item	Value
CPUs	Intel® Core™ i5-3550 CPU @ 3.30GHz (4 x 3293)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: disabled_software video_decode: enabled video_encode: enabled vpx_decode: enabled webgl: enabled webgl2: enabled
Memory (System)	15.97GB (9.45GB free)
Process Argv	C:\Program Files\Microsoft VS Code\Code.exe
Screen Reader	no
VM	0%

[brettcannon]

@fynnay specifically what issues with 64-bit Python on Windows? The core dev in charge of the Windows build is a teammate of ours so I’m sure he would like to know. 😄

[fynnay]

@DonJayamanne the ‘easiest’ way of installing PySide on Mac seems to change for every major OSX update. Here are a couple of solutions that worked for me on Yosemite and Sierra in the past: A) Use pip and force a version

pip install -U PySide==1.2.2

B) Use homebrew

brew tap-pin cartr/qt4
brew install qt
brew install pyside