单击按钮时关闭wxpython窗口

我有一个wxpythongui，它可以正常工作，当按下“组件缺陷”按钮（函数compMonth）时，它会打开两个窗口，一个gridForm和一个pyplot窗口。但是如果我再次运行相同的按钮而不关闭gridFrom和pyplot窗口，程序就会崩溃。尝试向按钮添加一些内容，以检查其中一个窗口是否打开，如果打开则关闭。不确定从哪里开始

import wx
import wx.grid as gridlib
import csv
import datetime
import re
import numpy as np
import matplotlib.pyplot as plt; plt.rcdefaults()
from collections import Counter
from operator import itemgetter
import pysftp
import warnings
import os

import openpyxl
from pip._vendor.distlib.util import CSVWriter
import matplotlib


warnings.filterwarnings("ignore")

filepath = os.path.join(os.path.expandvars("%userprofile%"),"Desktop")


powerfile = filepath+"\\Qual History.csv"
#print powerfile

today = datetime.date.today()
month = (today.month - 1)
year = today.year
month2 = month - 2
month3 = month - 3
if month == 1:
    month2 = 12
    month3 = 11
    year2 = year -1
    year3 = year2
elif month == 2:
    month2 = 1
    month3 = 12
    year2 = year
    year3 = year - 1
month = str(month)
year = str(year)
month2 = str(month2)
year2 = str(year2)
month3 = str(month3)
year3 = str(year3)
#print month, year, month3, year3
regex = re.compile(month +'/../'+year)
regex2 = re.compile(month +'/./'+year)
regex3 = re.compile(month2 +'/../'+year2)
regex4 = re.compile(month2 +'/./'+year2)
regex5 = re.compile(month3 +'/../'+year3)
regex6 = re.compile(month3 +'/./'+year3)
rootCause = ['COMPONENT DEFECT','EMC PROCESS DEFECT','METAL DEFECT','NFF','OTHER','VENDOR PROCESS DEFECT']

class gridForm(wx.Frame):
    def __init__(self):

        wx.Frame.__init__(self, None, wx.ID_ANY, "Drill Down Data", size = (600,600), pos = wx.Point(1000,150))

        panel = wx.Panel(self)

        self.myGrid = gridlib.Grid(panel)
        self.myGrid.CreateGrid(50, 4)

        self.sizer = wx.BoxSizer(wx.HORIZONTAL)
        self.sizer.Add(self.myGrid, 1, wx.CENTER)
        panel.SetSizer(self.sizer)
#         
#     def SetCellValueWrapper(self):
#         self.myGrid.SetCellValue(0,0, "Failure")  #here is where ir starts
#         self.myGrid.SetCellValue(0,1, "Count")
#         self.myGrid.SetCellValue(0,3, "Percent Total")


class MyForm(wx.Frame):

    def __init__(self):
        self.datarows = []

        wx.Frame.__init__(self, None, wx.ID_ANY, "627 Data", size = (700,400), pos=wx.Point(600,0))
        panel = wx.Panel(self, wx.ID_ANY)

        self.monthButton = wx.Button(panel, pos = (250,5), id=wx.ID_ANY, label="Last Month")
        self.monthButton.Bind(wx.EVT_BUTTON, self.lastMonth)
        self.month3Button = wx.Button(panel, pos = (350,5), id=wx.ID_ANY, label="Three Month")
        self.month3Button.Bind(wx.EVT_BUTTON, self.threeMonth)

        self.serialButton = wx.Button(panel, pos = (450,5), id=wx.ID_ANY, label="Get Serial Numbers")
        self.serialButton.Bind(wx.EVT_BUTTON, self.serialNumbers)

        self.compButton = wx.Button(panel, pos = (250,50), id=wx.ID_ANY, label="COMPONENT DEFECT")
        self.compButton.Bind(wx.EVT_BUTTON, self.compMonth)
        self.emcButton = wx.Button(panel, pos = (250,75), id=wx.ID_ANY, label="EMC PROCESS DEFECT")
        self.emcButton.Bind(wx.EVT_BUTTON, self.compMonth)
        self.metalButton = wx.Button(panel, pos = (250,100), id=wx.ID_ANY, label="METAL DEFECT")
        self.metalButton.Bind(wx.EVT_BUTTON, self.compMonth)
        self.nffButton = wx.Button(panel, pos = (250,125), id=wx.ID_ANY, label="NFF")
        self.nffButton.Bind(wx.EVT_BUTTON, self.compMonth)
        self.otherButton = wx.Button(panel, pos = (250,150), id=wx.ID_ANY, label="OTHER")
        self.otherButton.Bind(wx.EVT_BUTTON, self.compMonth)
        self.vendorButton = wx.Button(panel, pos = (250,175), id=wx.ID_ANY, label="VENDOR PROCESS DEFECT")
        self.vendorButton.Bind(wx.EVT_BUTTON, self.compMonth)

        self.partLabel = wx.StaticText(panel,100, 'Part number', pos = (15,10))
        self.partText = wx.TextCtrl(panel, pos = (100,5), size = (100,-1))
        self.partText.SetInsertionPoint(0)
        self.compText = wx.TextCtrl(panel, pos = (100,50), size = (100,-1))
        # self.compText.SetInsertionPoint(0)
        self.emcText = wx.TextCtrl(panel, pos = (100,75), size = (100,-1))
        #self.emcText.SetInsertionPoint(0)
        self.metalText = wx.TextCtrl(panel, pos = (100,100), size = (100,-1))
        #self.metalText.SetInsertionPoint(0)
        self.nffText = wx.TextCtrl(panel, pos = (100,125), size = (100,-1))
        #self.nffText.SetInsertionPoint(0)
        self.otherText = wx.TextCtrl(panel, pos = (100,150), size = (100,-1))
        #self.otherText.SetInsertionPoint(0)
        self.vendorText = wx.TextCtrl(panel, pos = (100,175), size = (100,-1))
        #self.vendorText.SetInsertionPoint(0)
        # self.Bind(wx.EVT_BUTTON, self.onButton, button)
#         self.myGrid = gridlib.Grid(panel)
#         self.myGrid.CreateGrid(20, 4)
#  
#         self.sizer = wx.BoxSizer(wx.HORIZONTAL)
#         self.sizer.Add(self.myGrid, 1, wx.CENTER)
#         panel.SetSizer(self.sizer)


    #----------------------------------------------------------------------
    def lastMonth(self, event):
        frame = gridForm()
        frame.Destroy()
        partNumber = self.partText.GetValue()
        if partNumber != "":
            csvfile = open(powerfile)
            datareader = csv.reader(csvfile, delimiter = ',')
            compCount = 0
            emcCount = 0
            metalCount = 0
            nffCount = 0
            otherCount = 0
            vendorCount = 0
            self.datarows=[]
            for row in datareader:
                if re.match(regex,row[3]) or re.match(regex2,row[3]):
                    self.datarows.append(row)
                    if (row[1] == partNumber and  row[9] == 'COMPONENT DEFECT' ):
                        compCount += 1

                    elif (row[1] == partNumber and  row[9] == 'EMC PROCESS DEFECT' ):
                        emcCount += 1
                    elif (row[1] == partNumber and  row[9] == 'METAL DEFECT' ):
                        metalCount += 1
                    elif (row[1] == partNumber and  row[9] == 'NFF' ):
                        nffCount += 1
                    elif (row[1] == partNumber and  row[9] == 'OTHER' ):
                        otherCount += 1
                    elif (row[1] == partNumber and  row[9] == 'VENDOR PROCESS DEFECT' ):
                        vendorCount += 1
            self.compText.SetValue(str(compCount))
            self.emcText.SetValue(str(emcCount))
            self.metalText.SetValue(str(metalCount))
            self.nffText.SetValue(str(nffCount))
            self.otherText.SetValue(str(otherCount))
            self.vendorText.SetValue(str(vendorCount))


    def threeMonth(self, event):
        partNumber = self.partText.GetValue()
        if partNumber != "":
            csvfile = open(powerfile)
            datareader = csv.reader(csvfile, delimiter = ',')
            compCount = 0
            emcCount = 0
            metalCount = 0
            nffCount = 0
            otherCount = 0
            vendorCount = 0
            self.datarows=[]
            for row in datareader:
                if re.match(regex,row[3]) or re.match(regex2,row[3]) or re.match(regex3,row[3]) or re.match(regex4,row[3]) or re.match(regex5,row[3]) or re.match(regex6,row[3]):
                    self.datarows.append(row)
                    if (row[1] == partNumber and  row[9] == 'COMPONENT DEFECT' ):
                        compCount += 1

                    elif (row[1] == partNumber and  row[9] == 'EMC PROCESS DEFECT' ):
                        emcCount += 1
                    elif (row[1] == partNumber and  row[9] == 'METAL DEFECT' ):
                        metalCount += 1
                    elif (row[1] == partNumber and  row[9] == 'NFF' ):
                        nffCount += 1
                    elif (row[1] == partNumber and  row[9] == 'OTHER' ):
                        otherCount += 1
                    elif (row[1] == partNumber and  row[9] == 'VENDOR PROCESS DEFECT' ):
                        vendorCount += 1
            self.compText.SetValue(str(compCount))
            self.emcText.SetValue(str(emcCount))
            self.metalText.SetValue(str(metalCount))
            self.nffText.SetValue(str(nffCount))
            self.otherText.SetValue(str(otherCount))
            self.vendorText.SetValue(str(vendorCount))



    def compMonth(self, event):

        ####this is where it should check for the windows and close them

        partNumber = self.partText.GetValue()
        csvfile = open(powerfile)
        datareader = csv.reader(csvfile, delimiter = ',')
        compCount = 0
        compFails = []
        compFinal = {}
        performance = []
        serials =[]
#         
        for row in self.datarows:   
            if (row[1] == partNumber and  row[9] == 'COMPONENT DEFECT' ):
                compCount += 1
                serials.append(row[0])
                if row[7] == '':

                    compFails.append(row[13])
                else:
                    compFails.append(row[7])
        #print compFails
        c = Counter(compFails).items()
        c.sort(key=itemgetter(1))
        compFails.sort(key=Counter(compFails).get, reverse=True)
        #print compFails
        #print compFails
        for item in compFails:
            #print item
            compFinal[item] = compFails.count(item)
        #print compFinal
        count = len(compFinal)
        #print count
        frame = gridForm()

        frame.myGrid.SetCellValue(0,0, "Failure")
        frame.myGrid.SetCellValue(0,1, "Count")
        frame.myGrid.SetCellValue(0,2, "Percent Total")
        y=1
        x=0
        totalCount = sum(compFinal.values())
        for key in compFinal:
            percentage = "%.0f%%" % (100 * compFinal[key]/totalCount)

            frame.myGrid.SetCellValue(y,x,key)
            frame.myGrid.SetCellValue(y,(x + 1),str(compFinal[key]))
            frame.myGrid.SetCellValue(y,(x + 2), str(percentage))
            y += 1
            performance.append(compFinal[key])
        labels, values = zip(*c)
        indexes = np.arange(len(labels))


        plt.bar(indexes, values, align='center',)
        plt.xticks(indexes, labels, rotation = 'vertical')
        plt.ylabel('Number of Failures')
        plt.title('627 Pareto for ' + partNumber)

        frame.Show()
        plt.show()


    def serialNumbers(self, event):
        #plt.close(1)
        partNumber = self.partText.GetValue()
        csvfile = open(powerfile)
        datareader = csv.reader(csvfile, delimiter = ',')
        compCount = 0
        serials =[]
#        
        for row in self.datarows:   
            if (row[1] == partNumber and  row[9] == 'COMPONENT DEFECT' ):
                compCount += 1
                serials.append(row[0])
        print serials
        writer = csv.writer(open(filepath+'\serials.csv', 'wb'))
        for word in serials:
            writer.writerow([word])

if __name__ == "__main__":
    app = wx.App(False)
    frame = MyForm()
    frame.Show()
    app.MainLoop()

---

是否尝试捕获错误？否，不确定如何执行…在name==“main”之后添加一个try/except子句并将其打印到stdout或写入文件或使用日志记录模块从命令行（终端）运行程序将提供错误消息。我从命令行运行该程序，但未提供任何错误，GUI只是冻结，然后它将继续（“无响应”），我将不得不强制关闭。