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Append not working
#1
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)
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#2
Use different variable in for loop

id = []
 for i in tag:
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#3
DOH!!!
Oh dear obviously staring at it for too long!

cheers anbu23
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#4
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
Reply


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