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Multidimensional list Getting the position of a Python string
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Multidimensional list Getting the position of a Python string
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I got following List
relational_scheme = [["F",["DC"]],["A",["EBD"]],["DC" , ["BAF"]],["E",["DB"]]]
Now i want to get the second List as a Set like
def returnSetOfList(relational_scheme,"F")
So that this output generates
set(["DC"])
How can i make this? an easy Index don't work.
Thanks in advance.
UPDATE
got it, was just blind Solution:
def returnSetOfList(scheme,string):
for x in scheme:
if string in x:
return set(x[1])
You can create a dictionary and then return the set() of the value for a given key.
Example
>>> def returnSetOfList(scheme, key):
... a_dict = dict(scheme)
... return set( a_dict[key] )
...
>>> relational_scheme = [["F",["DC"]],["A",["EBD"]],["DC" , ["BAF"]],["E",["DB"]]]
>>> returnSetOfList(relational_scheme, "F")
set(['DC'])
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