Can somebody explain this piece of python code to me?

Asked Aug 20 '18 at 12:40

Active Aug 20 '18 at 13:09

Viewed 75 times

I am trying to figure out what the subsequent lines of python code actually do:

if (var1 and var1) in [ctl for key, value in list(uof.items()) for ctl, com in list(cd.items()) if com == 'spain']:
    my_var= uof_map[var1 ]

I assume it executes some kind of the following logic:

for key, values in list(uof.items()):
  for ctl, com in list(values.items()):
     if com == 'spain':

But apparently the results do differ. Can someone please point me into the right direction?

Notes:

uof is a dictionary of dictionaries

value is a dictionary

edited Aug 20 '18 at 13:09

tafaust

asked Aug 20 '18 at 12:40

jalazbe

can you give an example of a key,value in uof? – Gabriel M Aug 20 '18 at 12:44
3

You are sure that the code is correct? – Petronella Aug 20 '18 at 12:45
At the very least, the first set of parens are almost certainly not in the right place. – glibdud Aug 20 '18 at 12:46
What is `var1`? Why is there a `(var1 and var1)` in the upper code block? – tafaust Aug 20 '18 at 12:46
The duplicates explain the list comprehension construct generally and nested list comps specifically, if you have other questions about that code please be very specific. `(var1 and var1)` will just evaluate to `var1`, so it seems suspicious and is maybe not the best thing to learn from. – jonrsharpe Aug 20 '18 at 12:47
I'm working on getting the info requested. – jalazbe Aug 20 '18 at 13:09

0 Answers0