Python SQLite 3:SQLite InterfaceError:绑定参数0时出错-可能是不支持的类型

我正在使用sqlite3 python模块，下面的代码返回错误

> Exception in Tkinter callback Traceback (most recent call last):  
> File "C:\Python34\lib\tkinter\__init__.py", line 1533, in __call__
>     return self.func(*args)   File "C:\MonitorSoft\MonitorSoft.py", line 199, in LoadSQL
>     CurFiles.execute('SELECT * FROM Files WHERE CheckSum = ?', (WinRedactor.Table.item(WinRedactor.Table.selection()[0],
> option='values')[3],))
> 
> sqlite3.InterfaceError: Error binding parameter 0 - probably
> unsupported type.

def LoadSQL(event):
    con = sqlite3.connect('C:/MonitorSoft/SoftMon.db')
    CurPackets = con.cursor()
    CurFiles = con.cursor()
    CurFilesIn = con.cursor()
    curFilesPackets = con.cursor()
    CurPackets.execute('SELECT * FROM Packets WHERE PacketName = ?', (WinRedactor.Combobox.get(),))
    for RowPackets in CurPackets:
        if WinRedactor.Combobox.get() !='NULL':
            while WinRedactor.Table.selection() != '':
                CurFilesIn.execute('INSERT INTO Files (id, FilePath, FileName, Size, CheckSum) VALUES(NULL, ?, ?, ?, ?)',((WinRedactor.Table.item(WinRedactor.Table.selection()[0], option='values')[0]), (WinRedactor.Table.item(WinRedactor.Table.selection()[0], option='values')[1]), (WinRedactor.Table.item(WinRedactor.Table.selection()[0], option='values')[2]),(WinRedactor.Table.item(WinRedactor.Table.selection()[0], option='values')[3])))
                con.commit()
                    CurFiles.execute('SELECT * FROM Files WHERE CheckSum = ?', (WinRedactor.Table.item(WinRedactor.Table.selection()[0], option='values')[3],))
                for RowFiles in CurFiles:
                    if RowFiles[4] == (WinRedactor.Table.item(WinRedactor.Table.selection()[0], option='values')[3]):
                        curFilesPackets.execute('INSERT INTO FilesPackets (IDFile, IDPacket) VALUES(?,?)',((RowFiles[0]), (RowPackets[0])))
                        con.commit()
                WinRedactor.Table.delete(WinRedactor.Table.selection()[0])
        con.commit()
        con.close()

BtnLoadSQL = Button(WinRedactor)
BtnLoadSQL["text"] = "LOAD SQL"
BtnLoadSQL.bind("<Button-1>",LoadSQL)
BtnLoadSQL.pack()

---

这是最后两个结论，最后，正如您所看到的，有一个bug。

要解决这个问题，第一步应该是打印出所有立即值，以便您可以验证它们是否是您所认为的。作为一个副作用，这使select语句更易于阅读

例如：

selection = WinRedactor.Table.selection()
print("selection is", selection)
first_selection = selection[0]
print("first selection is", first_selection)
values = WinRedactor.Table.item(first_selection, option='values')
print("values are", values)
checksum = values[3]
print("checksum:", checksum)

CurFiles.execute('SELECT * FROM Files WHERE CheckSum = ?', (checksum,))

---

我猜，你会对你所看到的感到惊讶。至少，你有更多的数据来回答你的问题，这样我们就可以准确地知道这些数据是什么

你能检查一下这些值是否正确吗？WinRedactor.Table.itemWinRedactor.Table.selection[0]，option='values'[3]，那么printtypeWinRedactor.Table.itemWinRedactor.Table.selection[0]，option='values'[3]会产生什么呢？printreprWinRedactor.Table.itemWinRedactor.Table.selection[0]，option='values'[3]如何？它处理大量记录，然后给出错误“05b3f32c7f3bd125446d024a30373c9d”“23ecf1c97b1eb5d94a25dc677ec464e5”“Tkinter回调回溯中的异常最后一次调用：文件C:\Python34\lib\Tkinter_init_u2;.py，第1533行，在调用返回self.func*args文件C:\MonitorSoft\MonitorSoft.py，第201行，LoadSQL CurFiles中。执行'SELECT*FROM Files WHERE CheckSum=？'，WinRedactor.Table.itemWinRedactor.Table.selection[0]，option='values'[3]，sqlite3.InterfaceError:绑定参数0时出错-可能是不支持的类型。@sia:您需要向我们显示引发异常的值的类型，而不是成功的类型。引发异常的值的类型也是str。此值提供了一个exeption“23ecf1c97b1eb5d94a25dc677ec464e5”

selection = WinRedactor.Table.selection()
print("selection is", selection)
first_selection = selection[0]
print("first selection is", first_selection)
values = WinRedactor.Table.item(first_selection, option='values')
print("values are", values)
checksum = values[3]
print("checksum:", checksum)

CurFiles.execute('SELECT * FROM Files WHERE CheckSum = ?', (checksum,))