How to make a flat list out of list of lists
Internet of Things
IoT Frameworks
2 years ago
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I wonder whether there is a shortcut to make a simple list out of list of lists in Python.
I can do that in a for loop, but maybe there is some cool "one-liner"? I tried it with reduce, but I get an error.
Code
l = [[1, 2, 3], [4, 5, 6], [7], [8, 9]]
reduce(lambda x, y: x.extend(y), l)
Error message
Traceback (most recent call last):
File "", line 1, in
File "", line 1, in
AttributeError: 'NoneType' object has no attribute 'extend'
Posted on 16 Aug 2022, this text provides information on IoT Frameworks related to Internet of Things. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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