Python：需要从列表中删除第一项，然后填充wx.CheckListBox

我目前正在编写一个python脚本来分析SNMP数据。我有一个函数，可以读取csv文件，并在复选框中显示标题。我想删除第一项，但这样做会使我的CheckListBox无法填充，我无法找出原因。代码如下：

#Generates CheckBoxList with fields from csv (first row)
def onSNMPGen(self,e):
    #reads in first row of csv file; this snmpPaths[0] will likely cause issues with multiple paths -- fix later
    listItems = []
    print "*** Reading in ", self.snmpPaths[0], "....."
    with open(self.snmpPaths[0], 'r') as f: #remember to close csv
        reader = csv.reader(f)
        print "*** Populating Fields ..... "
        for row in reader:
            #Inserts each field into CheckListBox as an item;
            #self.SNMPCheckListBox.InsertItems(row,0)
            listItems.append(row)
            break
        f.close()
    #Need to remove 'Time' (first item) from listItems
    #listItems.pop(0) # this makes it so my CheckListBox does not populate
    #del listItems[0] # this makes it so my CheckListBox does not populate
    for key in listItems:
        self.SNMPCheckListBox.InsertItems(key,0)

因为您使用了break，所以列表中只有一项。因此，当您删除该项时，没有任何内容可以填充您的复选框

如果您100%确定这是第一项，则可以重写循环，如：

 for row in reader[1:]:
            #Inserts each field into CheckListBox as an item;
            #self.SNMPCheckListBox.InsertItems(row,0)
            listItems.append(row)

---

reader[1:]表示您只需在listItems列表中添加第二个项目。

多亏了roxan，我才能够在看到错误后修复问题。我将csv行存储为列表中的一项，而不是将行的每一列都作为一项。以下是我的解决方案：

#Generates CheckBoxList with fields from csv (first row)
def onSNMPGen(self,e):
    #reads in first row of csv file; this snmpPaths[0] will likely cause issues with multiple paths -- fix later
    listItems = []
    print "*** Reading in ", self.snmpPaths[0], "....."
    with open(self.snmpPaths[0], 'r') as f: #remember to close csv
        reader = csv.reader(f)
        print "*** Populating Fields ..... "
        for row in reader:
            listItems = row             break
        f.close()
    del listItems[0] #Time is always first item so this removes it
    self.SNMPCheckListBox.InsertItems(listItems,0)

---

好的，我现在明白了。按照我脚本其余部分的工作方式，该修复将导致其他问题。也许我想解析列表中的一个项目并以这种方式将其删除，或者找到忽略/删除csv文件第一列的方法谢谢您指出我将csv行存储为一个项目，而不是多个项目。我已经想出了一个解决办法，我将张贴

#Generates CheckBoxList with fields from csv (first row)
def onSNMPGen(self,e):
    #reads in first row of csv file; this snmpPaths[0] will likely cause issues with multiple paths -- fix later
    listItems = []
    print "*** Reading in ", self.snmpPaths[0], "....."
    with open(self.snmpPaths[0], 'r') as f: #remember to close csv
        reader = csv.reader(f)
        print "*** Populating Fields ..... "
        for row in reader:
            listItems = row             break
        f.close()
    del listItems[0] #Time is always first item so this removes it
    self.SNMPCheckListBox.InsertItems(listItems,0)