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A Python newbie! I need help converting a list of lists tuples of tuples.
I want to call the append_as_tuples function, but every time I return it, it says
it can only concatenate lists (not tuples) to lists
Here is what I have so far:
def append_as_tuple(t, l): ''' Convert list l to a tuple and append it to tuple t as a single value ''' return t[:] + (tuple(l),) def convert_lists(lol): t = [] if type(lol) == a or type(lol) == tuple: return [convert_lists(lol) for i in t] return append_as_tuples(lol,a) #- test harness# a=[range(5), range(10,20), ['hello', 'goodbye']] print a print convert_lists(a) print convert_lists([]) 
833
To convert a list of lists to a list of tuples: Pass the tuple() class and the list of lists to the map() function. The map() function will pass each nested list to the tuple() class. The new list will only contain tuple objects.
A simple way to convert a list of lists to a list of tuples is to start with an empty list. Then iterate over each list in the nested list in a simple for loop, convert it to a tuple using the tuple() function, and append it to the list of tuples.
Using the tuple() built-in function An iterable can be passed as an input to the tuple () function, which will convert it to a tuple object. If you want to convert a Python list to a tuple, you can use the tuple() function to pass the full list as an argument, and it will return the tuple data type as an output.
To convert a tuple to list in Python, use the list() method. The list() is a built-in Python method that takes a tuple as an argument and returns the list. The list() takes sequence types and converts them to lists.
To convert list_of_lists to a tuple of tuples, use
tuple_of_tuples = tuple(tuple(x) for x in list_of_lists) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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