Hello所有Python人员，我对Tkinter相对较新，我目前正在开发一个GUI，允许用户从给定列表中选择元素，然后按任何给定顺序放置它们并添加任何可选的前缀/后缀。该程序第一次调用时工作正常，但是当我第二次调用它时，它将无法正确更新。
我的代码如下所示为创建的类（我在底部放置了一个可执行部件，以便让您了解我的问题，列表0是任何给定的列表，列表1是我们从第一个获得的呼叫和列表第二应该是从第二次呼叫获得的，如果没有显示此问题）：
import Tkinter as TK
class SelecParamOrdered(TK.Frame):
def __init__(self,master, listInit=[], listFinal=[], TITLE="Parameter selection", TEXTE="Here, specific instructions", number = 5):
TK.Frame.__init__(self,master)
self.master = master
self.TEXTE = TEXTE
self.TITLE = TITLE
listInit.sort()
listFinal.sort()
#
listTemp=[]
for elt in listInit:
if elt.replace(' ','')=='':
pass
elif not elt in listTemp:
listTemp.append(elt)
listInit=listTemp
#
listTemp=[]
for elt in listFinal:
if (not elt in listTemp) and (elt in listInit):
listTemp.append(elt)
listFinal=listTemp
#
listTemp=[]
for elt in listInit:
if not elt in listFinal:
listTemp.append(elt)
listInit=listTemp
self.listInit=listInit
self.listFinal=listFinal
self.indexI=0
self.indexF=0
self.number = number
self.initUI()
def initUI(self):
self.master.title(self.TITLE)
self.grid()
self.columnconfigure(0, pad=3)
self.columnconfigure(1, pad=3)
self.columnconfigure(2, pad=3)
self.columnconfigure(3, pad=3)
self.columnconfigure(4, pad=3)
self.columnconfigure(5, pad=3)
self.columnconfigure(6, pad=3)
self.rowconfigure(0, pad=3)
self.rowconfigure(1, pad=3)
self.rowconfigure(2, pad=3)
self.rowconfigure(3, pad=3)
self.rowconfigure(4, pad=3)
self.rowconfigure(5, pad=3)
self.rowconfigure(6, pad=3)
# Labels texte
text_param = TK.Label(self,text='Parametre')
text_param.grid(column=0, row=8, sticky='W')
text_order = TK.Label(self,text='Ordre')
text_order.grid(column=1, row=8, columnspan = 3)
text_prefix = TK.Label(self,text='Prefixe')
text_prefix.grid(column=5,row=8)
text_suffix = TK.Label(self,text='Suffixe')
text_suffix.grid(column=6, row=8)
txt = TK.Label(self, text=self.TEXTE)
txt.grid(row=0, column=0, columnspan=7, sticky=TK.W+TK.E)
t1= TK.Label(self, text="Liste initiale")
t1.grid(row=1, column=1, columnspan=2, sticky=TK.W+TK.E)
t2 = TK.Label(self, text="Liste finale")
t2.grid(row=1, column=4, columnspan=2, sticky=TK.W+TK.E)
#
self.listboxInit=TK.Listbox(self, selectmode=TK.EXTENDED)
self.listboxInit.grid(row=2, column=1, columnspan=2, rowspan=4, sticky=TK.N+TK.W+TK.E+TK.S)
self.listboxInit.bind('<Double-1>', self.listInit_event)
self.sbInit = TK.Scrollbar(self)
self.sbInit.config(command=self.listboxInit.yview)
self.listboxInit.config(yscrollcommand=self.sbInit.set)
self.sbInit.grid(row=2, column=0, rowspan=4, sticky=TK.N+TK.S)
#
self.listboxFinal = TK.Listbox(self, selectmode=TK.EXTENDED)
self.listboxFinal.grid(row=2, column=4, columnspan=2, rowspan=4, sticky=TK.N+TK.W+TK.E+TK.S)
self.listboxFinal.bind('<Double-1>', self.listFinal_event)
self.sbFinal = TK.Scrollbar(self)
self.sbFinal.config(command=self.listboxFinal.yview)
self.listboxFinal.config(yscrollcommand=self.sbFinal.set)
self.sbFinal.grid(row=2, column=6, rowspan=4, sticky=TK.N+TK.S)
self.fillListboxes()
add = TK.Button(self, text="==>", command=self.addParam)
add.grid(row=2, column=3, sticky=TK.W+TK.E)
rem = TK.Button(self, text="<==", command=self.removeParam)
rem.grid(row=4, column=3, sticky=TK.W+TK.E)
addT = TK.Button(self, text=">>>", command=self.addAllParam)
addT.grid(row=3, column=3, sticky=TK.W+TK.E)
remT = TK.Button(self, text="<<<", command=self.removeAllParam)
remT.grid(row=5, column=3, sticky=TK.W+TK.E)
send = TK.Button(self, text="OK", command=self.sendList)
send.grid(row=6, column=0, columnspan=7, sticky=TK.W+TK.E)
sendall = TK.Button(self,text='OK',command=self.sendAll)
sendall.grid(column=0, row=self.number+9, columnspan=7, sticky='WE')
# Une boucle par label/parametre
liste_options = range(1,self.number+1)
for i in range(self.number):
# Label Ordre
exec('self.text_var_'+str(i+1)+' = TK.StringVar()')
exec('self.text_param_'+str(i+1)+' = TK.Label(self,text=\'\', textvariable=self.text_var_'+str(i+1)+')')
exec('self.text_param_'+str(i+1)+'.grid(column=0, row='+str(i+9)+')')
# Liste deroulante
exec('self.v_'+str(i+1)+' = TK.IntVar()')
exec('self.v_'+str(i+1)+'.set(None)')
exec('om_'+str(i+1)+' = TK.OptionMenu(self,self.v_'+str(i+1)+',*liste_options)')
exec('om_'+str(i+1)+'.grid(column=1,row='+str(i+9)+',sticky=\'WE\')')
# Entree prefixe
exec('self.p_'+str(i+1)+' = TK.StringVar()')
exec('self.entry_prefix_'+str(i+1)+' = TK.Entry(self,textvariable=self.p_'+str(i+1)+',width=10)')
exec('self.entry_prefix_'+str(i+1)+'.grid(column=5,row='+str(i+9)+')')
# Entree suffixe
exec('self.s_'+str(i+1)+' = TK.StringVar()')
exec('self.entry_suffix_'+str(i+1)+' = TK.Entry(self,textvariable=self.s_'+str(i+1)+',width=10)')
exec('self.entry_suffix_'+str(i+1)+'.grid(column=6,row='+str(i+9)+')')
def fillInit(self,list):
list2=[]
for elt in list:
if (not elt in list2) and (not elt in self.listFinal):
list2.append(elt)
list2.sort()
self.listInit=list2
self.fillListboxes()
def fillFinal(self,list):
for elt in list:
if not elt in self.listFinal:
self.listFinal.append(elt)
if elt in self.listInit:
self.listInit.remove(elt)
self.listFinal.sort()
self.fillListboxes()
def fillListboxes(self):
self.listboxInit.delete(0,TK.END)
for p in self.listInit:
self.listboxInit.insert(TK.END,p)
self.listboxFinal.delete(0,TK.END)
for p in self.listFinal:
self.listboxFinal.insert(TK.END,p)
self.listboxInit.see(self.indexI)
self.listboxFinal.see(self.indexF)
def addParam(self):
index = self.listboxInit.curselection()
for i in index:
self.listInit.remove(self.listboxInit.get(i))
if not self.listboxInit.get(i) in self.listFinal:
self.listFinal.append(self.listboxInit.get(i))
if len(index)>0:
if index[0]>0:
self.indexI=int(index[0])-1
else:
self.indexI=0
self.listFinal.sort()
self.fillListboxes()
def removeParam(self):
index = self.listboxFinal.curselection()
for i in index:
self.listFinal.remove(self.listboxFinal.get(i))
if not self.listboxFinal.get(i) in self.listInit:
self.listInit.append(self.listboxFinal.get(i))
if len(index)>0:
if index[0]>0:
self.indexF=int(index[0])-1
else:
self.indexF=0
self.listInit.sort()
self.fillListboxes()
def addAllParam(self):
for elt in self.listInit:
if not elt in self.listFinal:
self.listFinal.append(elt)
self.listFinal.sort()
self.listInit=[]
self.indexI=0
self.fillListboxes()
def removeAllParam(self):
for elt in self.listFinal:
if not elt in self.listInit:
self.listInit.append(elt)
self.listInit.sort()
self.listFinal=[]
self.indexF=0
self.fillListboxes()
def listInit_event(self, event):
self.addParam()
def listFinal_event(self, event):
self.removeParam()
def sendList(self):
for i in range(len(self.listFinal)):
exec('self.text_var_'+str(i+1)+'.set(self.listFinal[i])')
self.master.update_idletasks()
def sendAll(self):
listOut = []
pOut = []
sOut = []
for i in range(len(self.listFinal)):
exec('num = self.v_'+str(i+1)+'.get()')
#print 'Num is: ',num
for j in range(len(self.listFinal)):
#print ' Index is: ',j+1
if num == j+1:
#print ' Condition OK'
exec('listOut.append(self.text_var_'+str(j+1)+'.get())')
exec('pOut.append(self.p_'+str(j+1)+'.get())')
exec('sOut.append(self.s_'+str(j+1)+'.get())')
self.quit()
return listOut, pOut, sOut
我用来调用它的函数以及main函数如下：
def getchosenlist(listInit=[],listFinal=[], TITLE="Parameter selection", TEXTE="Here, specific instructions"):
root = TK.Tk()
app = SelecParamOrdered(root,listInit,listFinal,TITLE,TEXTE)
root.mainloop()
return app.sendAll()
if __name__ == '__main__':
liste_param = []
for i in range(10):
liste_param.append('Parameter'+str(i+1))
print ' List 0:\n',liste_param
list1 = getchosenlist(liste_param)
print ' List 1st:\n',list1
list2 = getchosenlist(liste_param)
print ' List 2nd:\n',list2
谢谢！
答案 0 :(得分：0)
也许不是唯一的问题，因为正如评论所提到的，您的示例代码对于此站点的约定来说太长了（请参阅例如Code Review SE以获取有关重要代码段的反馈）。
您的代码在python的新手中表现出一个常见错误，即使用空列表作为关键字参数的默认值（至少在getchosenlist和SelecParamOrdered.__init__中）。这个空列表在您的方法的每次调用之间共享，因此，随着时间的推移会累积结果。您可以在effbot.org上阅读详细说明。
您可能想要实现的目标可以与模式一起使用：
def foo(arg = None):
if arg is None:
arg = []
(...)