从列表框中删除选择，以及从提供它的列表中删除它

Question

如何使用以下代码从列表框中删除选择并将其从包含它的列表中删除？列表框中的选择是我存储在列表中的字典。

.................code..............................
self.frame_verDatabase = Listbox(master, selectmode = EXTENDED)
        self.frame_verDatabase.bind("<<ListboxSelect>>", self.OnDouble)
        self.frame_verDatabase.insert(END, *Database.xoomDatabase) 
        self.frame_verDatabase.pack()

        self.frame_verDatabase.config(height = 70, width = 150)

    def OnDouble(self, event):
        widget = event.widget
        selection=widget.curselection()
        value = widget.get(selection[0])
        print ("selection:", selection, ": '%s'" % value)

示例：当我在列表框中进行选择时，将返回以下数据：

selection: (2,) : '{'Fecha de Entrega': '', 'Num Tel/Cel': 'test3', 'Nombre': 'test3', 'Num Orden': '3', 'Orden Creada:': ' Tuesday, June 23, 2015', 'Email': 'test3'}'

Answer 1

from tkinter import *
things = [{"dictionaryItem":"value"}, {"anotherDict":"itsValue"}, 3, "foo", ["bar", "baz"]]
root = Tk()
f = Frame(root).pack()
l = Listbox(root)
b = Button(root, text = "delete selection", command = lambda: delete(l))
b.pack()
l.pack()

for i in range(5):
    l.insert(END, things[i])

def delete(listbox):

    global things
    # Delete from Listbox
    selection = l.curselection()
    l.delete(selection[0])
    # Delete from list that provided it
    value = eval(l.get(selection[0]))
    ind = things.index(value)
    del(things[ind])
    print(things)

root.mainloop()

为清楚起见进行了编辑。由于本例中的 listbox 仅包含 dict 个对象，我只是 eval 从 listbox 中提取的值，获取其在列表对象中的索引，并将其删除。

从第二个注释到 print 语句的所有内容都可以在一行中完成，如下所示：

del(things[things.index(eval(l.get(selection[0])))])

如果你想发挥创意。

从列表框中删除选择，以及从提供它的列表中删除它

Removing a selection from a listbox, as well as remove it from the list that provides it

python

listbox

tkinter

python-3.4