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I've a list of values in an array:

 departamentos = ["Piura", "Lima"]

And I would like to transform it to:

 departamentos = (("Piura", "Piura"), ("Lima", "Lima"),)

I've tried this:

for i in departamentos:
     mis_departamentos_b  = mis_departamentos + ((i, i))

But it only returns the last item as a tuple.

mis_departamentos_b
('Lima', 'Lima')

How about

tuple((x,x) for x in departamentos)

(('Piura', 'Piura'), ('Lima', 'Lima'))

NumPy: Convert a list and tuple into arrays, NumPy Array Object Exercises, Practice and Solution: Write a NumPy program to convert a list and tuple into arrays. How can I convert a Python tuple to an Array? Python Programming. If you have a multi-level tuple and want a flat array, you can use the following −

Besides @Claus's answer, you could also use map:

 tuple(map(lambda d: (d, d), departamentos))

(('Piura', 'Piura'), ('Lima', 'Lima'))

How can I convert a Python tuple to an Array?, To convert a tuple to an array(list) you can directly use the list constructor. examplex = (1, 2, 3) y = list(x) print(y)OutputThis will give the output  NumPy Array Object Exercises, Practice and Solution: Write a NumPy program to convert a list and tuple into arrays.

There is another way to do get the same as follows.

>>> departamentos = ["Piura", "Lima"]
>>> t = tuple(((name, ) * 2 for name in departamentos))
>>> t
(('Piura', 'Piura'), ('Lima', 'Lima'))
>>>

Detailed:

>>> departamentos = ["Piura", "Lima"]
>>>
>>> t = ((name, ) * 2 for name in departamentos)
>>> t
<generator object <genexpr> at 0x000001D13A5F8518>
>>>
>>> tuple(t)
(('Piura', 'Piura'), ('Lima', 'Lima'))
>>>

Python, Python | Convert a list into a tuple. Given a list, write a Python program to convert the given list into a tuple. Examples: Input : [1, 2, 3, 4] Output : (1, 2, 3, 4) Input  i just want to store value like text and ID into tuple or list but i want to check it with another for loop. instead of using a for loop in a for loop. i am thinking to use arrays in array. But was pretty confuse whether should i use tuples in list or lists in a list.

Issue is in your variables. Below is modified code. You are using mis_departamentos_b and you are only assigning to it, so previous value of Plura Plura is overwritten by next value of Lima Lima

departamentos = ["Piura", "Lima"]
mis_departamentos = ()
for i in departamentos:
     mis_departamentos  = mis_departamentos + ((i, i))
print(mis_departame

Python, Given a list of tuples, write a Python program to convert it into list. Examples: Input​: [(11, 20), (13, 40), (55, 16)] Output:[11, 20, 13, 40, 55, 16] Input: [('Geeks', 2),  Python’s Numpy module provides a function numpy.array () to create a Numpy Array from an another array like object in python like list or tuple etc or any nested sequence like list of list, numpy.array (object, dtype=None, copy=True, order='K', subok=False, ndmin=0) 1 numpy.array(object, dtype=None, copy=True, order='K', subok=False, ndmin=0)

Python Numpy : Create a Numpy Array from list, tuple or list of lists , In this article we will discuss how to create a Numpy Numpy Array from a sequence like list or tuple etc. Also, how to create a 2D numpy Numpy  Different ways to create a tuple Create a tuple of different type of elements We can create a tuple of different type of elements by just separating them with ‘,’ and wrapping them using braces i.e. tupleObj = ('Riti', 31, 'London', 78.88)

How to convert a NumPy array to a tuple in Python, Use tuple(iterable) with the result as iterable to convert it to a tuple of tuples. an_array = np.array(((1,  To create a tuple with only one item, you have to add a comma after the item, otherwise Python will not recognize it as a tuple. Example One item tuple, remember the commma:

Lists and Tuples in Python – Real Python, When you're finished, you should have a good feel for when and how to use In short, a list is a collection of arbitrary objects, somewhat akin to an array in  Approach #3 : Using (*list, ) This essentially unpacks the list l inside a tuple literal which is created due to the presence of the single comma (, ). This approach is a bit faster but suffers from readability.