ValueError: too many values to unpack (Python 2.7)

Question

values = data.split("\x00")

username, passwordHash, startRoom, originUrl, bs64encode = values
if len(passwordHash)!= 0 and len(passwordHash)!= 64:
        passwordHash = ""
if passwordHash != "":
        passwordHash = hashlib.sha512(passwordHash).hexdigest()
username = username.replace("<", "")
if len(startRoom) > 200:
        startRoom = ""
startRoom = self.roomNameStrip(startRoom, "2").replace("<","").replace("&amp;#", "&amp;amp;#")
self.login(username, passwordHash, startRoom, originUrl)  


Error:
username, passwordHash, startRoom, originUrl, bs64encode = values
ValueError: too many values to unpack

I'd suggest adding some text to state the question, instead of just posting code. It's likely to get your question upvoted more, and therefore more people will see it, and you'll be more likely to get an answer. — Dave Challis, Jun 13 '14 at 19:45

score 9 · Accepted Answer · answered Jun 13 '14 at 19:38

9

Check the output of

print len(values)

It has more than 5 values (which is the number of variables you are trying to "unpack" it to) which is causing your "too many values to unpack" error:

username, passwordHash, startRoom, originUrl, bs64encode = values

If you want to ignore the tail end elements of your list, you can do the following:

#assuming values has a length of 6
username, passwordHash, startRoom, originUrl, bs64encode, _ = values

or unpack only the first 5 elements (thanks to @JoelCornett)

#get the first 5 elements from the list
username, passwordHash, startRoom, originUrl, bs64encode = values[:5]

answered Jun 13 '14 at 19:38

Martin Konecny

50,691
18
119
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1

Might be better to do `arg1, arg2, arg3 = values[:3]` to ignore extra elements. – Joel Cornett Jun 13 '14 at 19:41
That's also another option - added to answer - thanks – Martin Konecny Jun 13 '14 at 19:43

score 0 · Answer 2 · answered Jun 13 '14 at 19:40

0

When you're doing values = data.split("\x00") it's producing more then 5 elements, probably not all values are separated by \x00.

Inspect the value of values with print values and check it's size with len(values)

answered Jun 13 '14 at 19:40

Magnun Leno

2,348
18
27

ValueError: too many values to unpack (Python 2.7)

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