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I have two lists and I want to concatenate them element-wise. One of the list is subjected to string-formatting before concatenation.
For example :
a = [0, 1, 5, 6, 10, 11] b = ['asp1', 'asp1', 'asp1', 'asp1', 'asp2', 'asp2'] In this case, a is subjected to string-formatting. That is, new a or aa should be :
aa = [00, 01, 05, 06, 10, 11] Final output should be :
c = ['asp100', 'asp101', 'asp105', 'asp106', 'asp210', 'asp211'] Can somebody please tell me how to do that?
922
Python's extend() method can be used to concatenate two lists in Python. The extend() function does iterate over the passed parameter and adds the item to the list thus, extending the list in a linear fashion. All the elements of the list2 get appended to list1 and thus the list1 gets updated and results as output.
Python concatenate lists without duplicates The list and the new list are concatenated by using the “+” operator. The print(list) is used to get the output.
Use zip:
>>> ["{}{:02}".format(b_, a_) for a_, b_ in zip(a, b)] ['asp100', 'asp101', 'asp105', 'asp106', 'asp210', 'asp211'] Using zip
[m+str(n) for m,n in zip(b,a)] output
['asp10', 'asp11', 'asp15', 'asp16', 'asp210', 'asp211'] 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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