Question

我的代码：

def dictest():
    global my_glossary
    # read all lines of the file
    inFile = open("glossary.txt", "r")
    inText = inFile.read()
    inFile.close()

    my_glossary = {}
    # iterate through all lines, after removing the line-end character(s)
    for line in inText.splitlines():
        if line != '':           # ignore empty lines
            (key,value) = line.split(",")
            my_glossary[key] = value

    addToGlossary = entryNew.get()
    addToGlossaryDef = outputNew.get()

    my_glossary[addToGlossary] = addToGlossaryDef

    # list all the dictionary entries
    for k,v in my_glossary.items():
        print('key:', k, ', value:', v)

我的输出：

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 "I:\School\Working Glossary.py", line 59, in MultiFunc
dictest()
File "I:\School\Working Glossary.py", line 14, in dictest
(key,value) = line.split(",")
ValueError: too many values to unpack (expected 2)

我正在尝试使用文本文件作为存储来制作关键字词汇表。我一直遇到这个导致程序无效的错误。

我的文字内容：

bug, this is a test
test, this is another test
testing,testing
123,12354

Answer 1

我想你想要这个：

>>> line = "hello,world,foo,bar"
>>> (key, value) = line.split(",", 1)
>>> key
'hello'
>>> value
'world,foo,bar'
>>>

更改为：（键，值）= line.split（“，”，1）

传递1作为split的第二个参数告诉split在遇到1个逗号后停止，将该行的其余部分传递给value。

来自docs，

str.split（[sep [，maxsplit]]）（......）如果给出maxsplit，则最多完成maxsplit拆分（因此，列表最多只能有maxsplit + 1个元素。）

ValueError：解压缩（预期2）错误的值太多

1 个答案: