The code below returns:
[[('direction', 'north')], [('direction', 'east')], [('direction', 'south')]]
There is a set of [ ] around each value that I'm wondering how to get rid of. The ideal output is:
[('direction', 'north'), ('direction', 'east'), ('direction', 'south')]
Here is the function:
def scan(input):
words = input.split()
dictionary = [('direction', 'north'),('direction', 'south'),('direction', 'east')]
output = []
for word in words:
output.append(list(filter(lambda x:word in x, dictionary)))
return output
print(scan('north east south'))
Does anyone know why the square brackets show up in the output and how I can get rid of them?
Any assistance is much appreciated.
Sir, you have over complicated life. Just use this.
#Note: x would be your list
new = [lst[0] for lst in x]
output
[('direction', 'north'), ('direction', 'east'), ('direction', 'south')]
You used the wrong method to increase your outer list. You appended a list of a tuple, rather than simply adding the tuple. Simply change the function to the one you need:
output.extend(list(filter(lambda x:word in x, dictionary)))
Result:
[('direction', 'north'), ('direction', 'east'), ('direction', 'south')]
Fix the problem where it occurs, rather than reversing the error later.
those qotes are because your filter is transformed into a list with a tuple inside. So if you only take the first element by adding [0] like this
output.append(list(filter(lambda x:word in x, dictionary))[0])
it should solve your problem.
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