Apparently I was on pyqt version 5.9.2. I updated to 5.9.6 using "conda
update pyqt" but I'll have to do some more testing to see if it makes a
difference.
Dustin
On Monday, January 27, 2020 at 6:44:56 PM UTC-8, Patrick wrote:
>
> Hi,
>
> A while back I noticed random crashes on a Windows 7 machine after
> upgrading PyQt5 to 5.11, which from memory was similar. The same code and
> Python/PyQt versions on the Linux machines was fine. Didn't spend much time
> troubleshooting, just did a pip install PyQt5==5.10.1 to downgrade PyQt
> version and problem went away...
>
> Maybe that will help?
>
> Patrick
>
> On Tuesday, 28 January 2020 11:02:48 UTC+10:30, Dustin Hibberd wrote:
>>
>> Hello,
>>
>> I have been using pyqtgraph with pyqt5 on a number of GUI's at my
>> office. I used to run them all using python 2.7 and didn't have any
>> problems with random crashes. However, now that I've started using python
>> 3.7, everything seem so much less stable. My GUI's will randomly crash with
>> no traceback / error message. The window simply closes, despite wrapping
>> general try/excepts over most functions that should print out the
>> exception. I'm using the anaconda package and IPython console built into
>> Spyder.
>>
>> The crashing persists
>> - on multiple different installs on different computers.
>> - running scripts locally and network based
>> - All on python 3.7 and Windows 10
>> - sometimes happens when I click buttons
>> - sometimes seems to happen due to mouse / hover events
>>
>> I'm not entirely convinced it's due to the pyqtgraph import but I figured
>> this is a good place to start since my one application that does not use
>> pyqtgraph doesn't seem to have this problem.
>>
>>
>> I recently got it to be more stable by only running the GUI script once
>> from a specific console instance. My only lead is that it might has
>> something to do with running the GUI from the console multiple times in a
>> row ( I often do this when I'm adjusting pen colors / layouts etc)
>>
>> My biggest problem is that I get no traceback or clue as to what's going
>> on. It just closes without any message at all.
>>
>> Here's a few relevant code snippets:
>>
>>
>>
>> import sys
>> import time
>> import traceback
>> import numpy as np
>> from functools import partial
>>
>> from PyQt5 import QtWidgets, QtCore, QtGui
>> from PyQt5.QtCore import pyqtSignal
>> import pyqtgraph.exporters
>> import pyqtgraph as pg
>>
>>
>> import DB_Control_v002 as DB
>> import pyqtGraphPresets_v001 as pgPre
>>
>> class MainWindow(QtWidgets.QMainWindow):
>>
>> sigCount = pyqtSignal()
>>
>> def __init__(self, parent=None):
>> super(self.__class__, self).__init__(parent)
>>
>> # Allows for statistical anylisis from the SPC table
>> # if an SPC table is not chosen it is changed to false and no
>> analysis is done
>> # if the openened database is closed, it is then turned back to
>> True
>> self.statsEnabled = True
>> self.statsGraphs = {}
>> self.check_list = []
>>
>>
>> """Create Status Bar"""
>>
>> self.MainStatus = self.statusBar()
>>
>> """ Create MainWindow """
>> self.setObjectName("Data Viewer")
>> self.resize(1500, 800)
>> self.setWindowTitle("Data Viewer")
>>
>> self.setWindowIcon(QtGui.QIcon('line-chart.png'))
>>
>> graph_color = pg.mkColor(float(.9))
>> pg.setConfigOption('background', graph_color)
>> pg.setConfigOption('foreground', 'k')
>>
>>
>> self.layout = QtWidgets.QGridLayout() #establishes
>> Grid layout style
>> self.layout.setContentsMargins(20,20,20,20)
>> self.layout.setHorizontalSpacing(9)
>> self.layout.setVerticalSpacing(1)
>>
>> """ Font Creation """
>>
>> self.font1 = QtGui.QFont("Times New Roman", pointSize=15)
>> self.font2 = QtGui.QFont("Helvetica",pointSize=12)
>>
>> """ Graph Pen Creation """
>> self.magenta_line = pg.mkPen(width=1, color='m')
>> self.red_line = pg.mkPen(width=1, color='r')
>> self.green_line = pg.mkPen(width=1, color=(52, 127, 6),
>> style=QtCore.Qt.DashLine)
>> self.yellow_dash = pg.mkPen(width=2, color=(249, 157, 19),
>> style=QtCore.Qt.DashLine)
>> self.purp_dash = pg.mkPen(width=1,color=(182, 59, 191),
>> style=QtCore.Qt.DashLine)
>> self.blank = QtGui.QColor(0,0,0,0)
>>
>> """ ToolBar Creation """
>>
>> toolbar_main = QtWidgets.QToolBar(self)
>> toolbar_main.setWindowTitle("Filter")
>> toolbar_main.setMovable(False)
>> toolbar_main.setIconSize(QtCore.QSize(50,50))
>> self.addToolBar(toolbar_main)
>>
>> self.but_open =
>> QtWidgets.QAction(QtGui.QIcon("download.png"),"Open new SQL Database",self)
>> self.but_close =
>> QtWidgets.QAction(QtGui.QIcon("cancel.png"),"Close Database",self)
>>
>> self.but_spc = QtWidgets.QAction(QtGui.QIcon("fence.png"),"SPC
>> ",self)
>> self.but_spc.setCheckable(True)
>> self.but_avg =
>> QtWidgets.QAction(QtGui.QIcon("avg.png"),"Average",self)
>> self.but_avg.setCheckable(True)
>> self.but_sigma =
>> QtWidgets.QAction(QtGui.QIcon("sigma.png"),"Control Limits",self)
>> self.but_sigma.setCheckable(True)
>> self.but_minmax =
>> QtWidgets.QAction(QtGui.QIcon("min-max.png"),"Min - Max",self)
>> self.but_minmax.setCheckable(True)
>>
>> self.but_feed =
>> QtWidgets.QAction(QtGui.QIcon("play_grad.png"),"Start live feed.",self)
>> self.but_feed.setCheckable(True)
>>
>> self.stats_but_list = [self.but_spc, self.but_avg,
>> self.but_sigma, self.but_minmax]
>>
>> spacer_list = [QtGui.QWidget(self) for i in range(3)]
>> for spacer in spacer_list:
>>
>> spacer.setSizePolicy(QtGui.QSizePolicy.Minimum,QtGui.QSizePolicy.Minimum)
>> spacer.setMinimumWidth(40)
>>
>> toolbar_main.addAction(self.but_open)
>> toolbar_main.addAction(self.but_close)
>> toolbar_main.addWidget(spacer_list[0])
>>
>> toolbar_main.addWidget(spacer_list[1])
>>
>> toolbar_main.addAction(self.but_spc)
>> toolbar_main.addAction(self.but_avg)
>> toolbar_main.addAction(self.but_sigma)
>> toolbar_main.addAction(self.but_minmax)
>> toolbar_main.insertSeparator(self.but_spc)
>>
>> toolbar_main.addWidget(spacer_list[2])
>>
>> toolbar_main.addAction(self.but_feed)
>> toolbar_main.insertSeparator(self.but_feed)
>>
>> """ Create Tab Zone """
>>
>> self.Tab_zone = QtWidgets.QTabWidget()
>> self.Tab_zone.tabCloseRequested.connect(self.closeTab)
>>
>> self.layout.addWidget(self.Tab_zone)
>> self.setCentralWidget(self.Tab_zone)
>> self.setLayout(self.layout)
>>
>>
>>
>> """ Button Connections """
>>
>> self.but_open.triggered.connect(self.openFile)
>> self.but_close.triggered.connect(self.closeFile)
>>
>> self.but_spc.triggered.connect(self.toggleStatLines)
>> self.but_avg.triggered.connect(self.toggleStatLines)
>> self.but_sigma.triggered.connect(self.toggleStatLines)
>> self.but_minmax.triggered.connect(self.toggleStatLines)
>>
>> self.but_feed.triggered.connect(self.handleFeed)
>>
>>
>>
>> self.updateStatus(0)
>>
>>
>>
>> def updateStatus(self, status):
>> # 0 = no database opened, or database closed
>> # 1 = database opened
>>
>> if status == 0:
>> self.but_open.setEnabled(True)
>> self.but_close.setEnabled(False)
>> self.but_feed.setEnabled(False)
>>
>> for but in self.stats_but_list:
>> but.setEnabled(False)
>>
>> if status == 1:
>> self.but_open.setEnabled(False)
>> self.but_close.setEnabled(True)
>> self.but_feed.setEnabled(True)
>>
>> for but in self.stats_but_list:
>> but.setEnabled(True)
>>
>>
>> def openSummaryTab(self):
>>
>> try:
>> tab = QtWidgets.QWidget()
>> layout = QtWidgets.QGridLayout()
>>
>> param_list = [col for col in self.dataFrame.columns]
>>
>> row_limit = 25
>> start_row = 4
>> for i, param in enumerate(param_list):
>> col = (i)//row_limit
>> row = i+start_row - row_limit*col
>> button = QtWidgets.QCheckBox(param)
>>
>> button.setSizePolicy(QtWidgets.QSizePolicy.Minimum,QtWidgets.QSizePolicy.Expanding)
>> button.stateChanged.connect(self.updateSummaryGraph)
>> button.stateChanged.connect(partial(self.openStatsTab,
>> button))
>>
>> self.check_list.append(button)
>> layout.addWidget(button,row,col,1,1)
>>
>> label_Xaxis = QtWidgets.QLabel('Select X-Axis')
>> label_Xaxis.setAlignment(QtCore.Qt.AlignCenter)
>>
>> label_Xaxis.setSizePolicy(QtWidgets.QSizePolicy.Minimum,QtGui.QSizePolicy.Minimum)
>> label_Xaxis.setFont(self.font1)
>>
>> self.combo_Xaxis = QtWidgets.QComboBox()
>> for param in param_list:
>> self.combo_Xaxis.addItem(param)
>>
>> self.combo_Xaxis.currentIndexChanged.connect(self.sortTableView)
>> layout.addWidget(self.combo_Xaxis, 1, 0, 1,
>> layout.columnCount()-1)
>>
>> self.text_mode = QtWidgets.QCheckBox('Text Mode')
>> layout.addWidget(self.text_mode, 2, 0, 1,
>> layout.columnCount()-1)
>> self.text_mode.stateChanged.connect(self.setTextMode)
>>
>>
>> label_Yaxis = QtWidgets.QLabel('Select Y-Axis')
>> label_Yaxis.setAlignment(QtCore.Qt.AlignCenter)
>>
>> label_Yaxis.setSizePolicy(QtWidgets.QSizePolicy.Minimum,QtGui.QSizePolicy.Minimum)
>> label_Yaxis.setFont(self.font1)
>>
>> layout.addWidget(label_Xaxis,0,0,1,layout.columnCount())
>> layout.addWidget(label_Yaxis,3,0,1,layout.columnCount())
>>
>> self.Xaxis = pgPre.CustomAxis(orientation='bottom')
>> if self.text_mode.isChecked():
>> self.Xaxis.setTextMode(True)
>>
>> self.sumGraph = pg.PlotWidget(axisItems={'bottom':
>> self.Xaxis})
>> self.sumGraph.showGrid(x=True,y=True)
>>
>> self.combo_Xaxis.currentIndexChanged.connect(self.updateSummaryGraph)
>>
>> self.combo_Xaxis.currentIndexChanged.connect(self.updateAllStatsGraph)
>> self.header.sigUpdate.connect(self.updateSummaryGraph)
>>
>> self.updateSummaryGraph()
>>
>>
>> layout.addWidget(self.sumGraph,0,layout.columnCount(),layout.rowCount(),1)
>>
>>
>>
>> tab.setLayout(layout)
>> self.Tab_zone.addTab(tab, "Summary")
>>
>> self.updateStatus(1)
>>
>>
>>
>> except Exception as ex:
>> tb = sys.exc_info()[-1]
>> self.MainStatus.showMessage("openSummaryTab Error : {} | Line
>> : {} | Details : {}".format(type(ex).__name__,tb.tb_lineno,ex.args))
>>
>>
>> def updateSummaryGraph(self):
>> try:
>> y_axis_title_list = []
>> color_list = ['#0080FF', '#FF0000', '#00FF00','#FF007F',
>> '#00FFFF', '#FF8000',
>> '#7F00FF', '#FF00FF', '#FFFF00',
>> '#E0E0E0', '#606060']
>>
>> self.sumGraph.plot([],[], clear=True)
>>
>> x_param = self.combo_Xaxis.currentText()
>>
>> if self.text_mode.isChecked():
>> self.Xaxis.x_list = self.getStrings(x_param)
>> x = list(range(len(self.Xaxis.x_list)))
>>
>> else:
>> x = self.getGraphData(x_param)
>>
>>
>>
>> color=0
>> for item in self.check_list:
>> item.setStyleSheet('')
>>
>> if item.isChecked():
>>
>> y_param = item.text()
>> y = self.getGraphData(y_param)
>> y_axis_title_list.append(y_param)
>>
>> brush = pg.mkBrush(color=color_list[color],
>> symbol='o')
>> self.sumGraph.plot(x, y, pen=color_list[color],
>> symbolBrush=brush, symbolPen='k')
>>
>>
>> item.setStyleSheet("background-color:
>> {}".format(color_list[color]))
>> color += 1
>> if color > (len(color_list)-1):
>> color = 0
>>
>> self.sumGraph.setLabels(title = 'Summary Graph', left =
>> str(y_axis_title_list), bottom = x_param)
>>
>>
>>
>> def main():
>> try:
>> sys.excepthook = traceback.print_exception
>>
>> app = 0
>> app = QtWidgets.QApplication(sys.argv)
>> app.setQuitOnLastWindowClosed(True)
>>
>>
>> dlg = MainWindow()
>> dlg.show()
>> dlg.raise_()
>>
>> sys.exit(app.exec_())
>>
>> except SystemExit as sysEx:
>> if sysEx.args[0] == 0:
>> pass
>> else:
>> print(sysEx.args)
>>
>> except Exception as ex:
>> print(ex)
>>
>> if __name__ == "__main__":
>> main()
>>
>
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