Python Forum

Hi guys,

I have used this several times before and I simply cannot see what I am doing wrong here.
Previous code has extracted a list of data (data_id) under 'tag' - I just want to retrieve it and put it in an array.
Here's my code and output.

id = []
 for id in tag:
                data_id = id.get('data-id')
                print(id.append(data_id),str(data_id))
                #load id array list
                id.append(data_id)

Output:
None 81568
None 176573
None 123466
None 124106
None 125505
None 161249
None 31776

The data is correct, just not being added to array (or rather being added as None)

Use different variable in for loop

id = []
 for i in tag:

DOH!!!
Oh dear obviously staring at it for too long!

cheers anbu23

append is a function that returns None. It does not return the list with an appended value.

Your code does not make any sense. It does this:
tag[N].append(tag[N].get('data_id') for N in range(len(tag))

id = []  #<-  This list is thrown away in the next line
for id in tag:
    data_id = id.get('data-id')
    print(id.append(data_id),str(data_id))
    #load id array list
    id.append(data_id)  # This is id from the for loop