Question

I am trying to create a dictionary and assign a value of 0 to each value

Here’s what I have so far:

c.execute("""SELECT category from wordtest order by category""")
catnum = c.fetchall()
catnum = [list(x) for x in catnum]
catnum = sum(catnum, [])
catnums = defaultdict(list)
for key in catnum:
        catnums[key].append(0)

But the output I get for this is {"key": [0]} and I do not want the value in a list.

Category in the database is just a list of words.

How would I make it so that the value of catnums, per key, is 0?

Answer 1

Am I missing something? Doesn’t the following do what you want?:

catnums={}
for key in catnum:
    catnums[key]=0

Why do you need a defaultdict here?

Note that if you want a defaultdict which defaults to having values that default to 0, you can do:

zerodict=defaultdict(int)

since int() returns 0.