Question

我正在尝试使用wxPython创建一个小工具。基本上，我希望我的代码从csv文件导入数据并打印个人的姓名和职业。无论如何，我在search_ppl定义中使用find_names函数时遇到错误。错误说明NameError：未定义全局名称'find_names'。我不明白如何解决它。如果我将函数find_names设为全局，则代码也不起作用。我已经在python中为此编写了一个工作代码，其中结果被写入终端窗口。但是wxPython对我来说还是新手，我还不太了解它...感谢您的帮助！

#!/usr/bin/env python
import wx
import wx.lib.mixins.listctrl as listmix
import csv
from wxPython.wx import *

info = csv.reader(open('data.csv', 'rb'),delimiter=',')

class MyFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, 
            "Search", pos=(920,730), size=(350,250) )

        panel = wx.Panel(self, wx.ID_ANY)

        self.control = wxTextCtrl(panel, 1, style=wxTE_PROCESS_ENTER 
                        , pos=(130,180), size=(200,28))

        self.list_ctrl = wx.ListCtrl(panel
                        , style=wx.LC_REPORT|wx.BORDER_SUNKEN
                        , size=(350,170))

        self.list_ctrl.InsertColumn(0, "Name", width = 120)
        self.list_ctrl.InsertColumn(1, "Occupation", width = 220)

        index = 0
        for row in info:
            self.list_ctrl.InsertStringItem(index, row[1])
            self.list_ctrl.SetStringItem(index, 1, row[4])

            if index % 2:
                self.list_ctrl.SetItemBackgroundColour(index, "white")
            else:
                self.list_ctrl.SetItemBackgroundColour(index, "yellow")
            index += 1

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.list_ctrl, 0, wx.ALL|wx.CENTER, 5)
        panel.SetSizer(sizer)


        btn = wx.Button(panel, label="Search", pos=(20,180))
        btn.Bind(wx.EVT_BUTTON, self.search_ppl)

        key_index = 4
        results = []

    def search_ppl(self, event):
                employee_name = self.control.GetValue()
        find_names(key_index, results, info, employee_name)
        print results

    def find_names(key_index, results, info, employee_name):
        for row in info: #search each row in data.csv               
                    if employee_name in row[key_index]: #name is in file                    results.append(row[1]) #add element to the list
        return results, info




if __name__ == '__main__':
    app = wx.App(False)
    frame = MyFrame()
    frame.Show()
    app.MainLoop()

Answer 1

更改行

find_names(key_index, results, info, employee_name)

到

results, info = self.find_names(key_index, results, info, employee_name)

因为您正在调用类方法，所以您需要使用self。在方法名称之前

您还需要为key_index，results＆amp;设置值。调用find_names之前的信息

在wxPython中定义我的函数

1 个答案: