Python sort list of list containing integer and string with integers inside

Question

How i can use python to sort the list format

format=[\"12 sheet\",\"4 sheet\",\"48 sheet\",\"6 sheet\", \"busrear\", \"phonebox\",\"train\"]

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Answer 1

You can trivially sort a list of strings with built-in sorted method. Even if the objects in your list are more complex, you can still use sorted. Just pass a custom key parameter to use the second item from the inner list as the key in ordering comparisons:

result = sorted(format, key=lambda x: x[1])

Finally switch to your sorting function natsorted (from natsort package) and you end up with the desired, naturally sorted, result list:

from natsort import natsorted
result = natsorted(format, key=lambda x: x[1])