Django: ValueError at /books/search/ need more than 1 value to unpack

Question

I am beginner and i am unable to understand why this error is coming. Tries lots of things from several posts: Django forms: need more than 1 value to unpack , ValueError: need more than 1 value to unpack , Python - ValueError: need more than 1 value to unpack , ValueError: need more than 1 value to unpack, django email error but result is zero.

file views.py

def query(self,q, type = None):
        #q="python"
        rows, wordids = self.getmatchrows(q) #q=python
        scores = self.getscoredlist(rows, wordids, type)
        rankedscores = sorted([(score, url) for (url, score) in scores.items()],reverse = 1)
        #print the first 20 results on the screen

        for (score, urlid) in rankedscores[0:20]:
            t= self.textcomplexity(urlid)
            print '%f\t%s' %(score, self.geturlname(urlid))
            return HttpResponse(t)      

def search_form(request):
    return render(request, 'books/index.html')

def search(request):
    global message
    if 'q' in request.GET:
        message = request.GET['q']
        searc=searcher("db.sqlite3")
        wordids,urls=searc.query(message,'qi') # error pointing here

    else:
        message = 'You submitted an empty form.'

Error:

ValueError at /books/search/ need more than 1 value to unpack at wordids,urls=searc.query(message,'qi')

Any idea?? Please help

searcher is fetching data from db and doing everything correct — user3508182, Apr 30 '16 at 08:01
but i m getting stuck why it is saying like this. though on the black screen console it is printing everything but on webpage it is sending this error — user3508182, Apr 30 '16 at 08:02
We don't know if it is doing everything correct unless you show what exactly it is returning. Is it returning two values or one? — AKS, Apr 30 '16 at 08:05

score 0 · Answer 1 · answered May 01 '16 at 07:51

From your code snippet the query method returns an HttpResponse (if the for loop executes) or None. Both of them are not a tuple of 2 elements as you expect in the search view. Review your query method and return a proper result, most likely you want a list of tuples (score, url) from what I see.

Django: ValueError at /books/search/ need more than 1 value to unpack

1 Answers1