Nested List Loop

Question

I would like to loop the nest list ['sally','joe'] in the example shown below.

data = ['joe','mike',['sally','joe'],'phil']

I attempted the following:

for i in data:
    for j in (i):
        if type(j) == '<class '+"'list'>":    
            print(j)

Please show your desired output. Is it ['sally','joe'] or is it joe mike sally joe phil (with newlines between)? — SethMMorton
– SethMMorton, Commented Nov 20, 2018 at 2:18

U13-Forward · Accepted Answer · 2018-11-20 01:27:49Z

2

Why not just isinstance:

for i in data:
    if isinstance(i,list):
        print(i)

Now the output is:

['sally', 'joe']

edited Nov 20, 2018 at 1:27

answered Nov 20, 2018 at 1:17

U13-Forward

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Comments

UltraInstinct · Accepted Answer · 2018-11-20 01:14:13Z

1

You would need to use:

if type(j) == list:
    print(j)

It doesn't currently work because type(j) returns an object of class type, not a string. You might think it is a string because when printing it in a REPL interpreter, you might see the repr(..) version.

answered Nov 20, 2018 at 1:14

UltraInstinct

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1 Comment

UltraInstinct Over a year ago

Downvoter: Care to comment? This answer was supposed to be "what went wrong?" and not "what's the right way".

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