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Closed 10 years ago.
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Making a flat list out of list of lists in Python
Flatten (an irregular) list of lists in Python
This must me very easy, but I can't seem to find a one-line/efficiënt solution :
I want to convert [(1,2),(3,4),(5,6)] in [1,2,3,4,5,6]
Related
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python order of elements in set
(2 answers)
Why is the order in dictionaries and sets arbitrary?
(5 answers)
Closed 26 days ago.
I have a list a:
a={4941, 4980, 3855, 4763, 4955}
I convert into a list:
b=list(a)
b now becomes [4980, 4955, 4763, 4941, 3855]
Sorry am I missing something? Eventhough set is an unordered structure why should it change the order ? Or is it the list function that is doing this?
Sorry if this is too naive a question! Many thanks.
This question already has answers here:
Append a dictionary to a dictionary [duplicate]
(7 answers)
How to index into a dictionary?
(11 answers)
Closed 2 months ago.
I encountered a program where I had to append one dictionary into another, and I was unable to do it because I could not use indexing in dictionary so I wanted to know what the possible ways are I could do it
This question already has answers here:
How do I make a flat list out of a list of lists?
(34 answers)
Closed 8 months ago.
A=["asd","jkl","qwe"]
[A[1:3],A[0:1]]
gives
[['jkl', 'qwe'], ['asd']]
I wish it just gave
['jkl', 'qwe', 'asd']
How do I accomplish this seemingly elusive task?
edit: the version of python I must work with does not allow for * symbol.
A=["asd","jkl","qwe"]
A = [*A[1:3], *A[0:1]]
This question already has answers here:
What's the difference between lists and tuples?
(22 answers)
Closed 2 years ago.
In my one of the interview the interview ask me about the tuple and the list in python. And ask which is more efficient in case of finding a element on both .
The major difference between tuples and lists is that a list is mutable, whereas a tuple is immutable. This means that a list can be changed, but a tuple cannot.The contents in a list can be modified, edited or deleted while the contents in a tuple are fixed and cannot be modified, edited or deleted.
This question already has answers here:
How to convert nested list of lists into a list of tuples in python 3.3?
(4 answers)
Closed 6 years ago.
I want to convert a list of list into list of tuples using Python. But I want to do it without iterating through the nested list as it will increasing execution time of script. Is there any way which can workout for me?
Thanks in Advance
converted_list = [tuple(i) for i in nested_list]