Asked By – YOU
In Python 2.x, I could pass custom function to sorted and .sort functions
>>> x=['kar','htar','har','ar'] >>> >>> sorted(x) ['ar', 'har', 'htar', 'kar'] >>> >>> sorted(x,cmp=customsort) ['kar', 'htar', 'har', 'ar']
Because, in My language, consonents are comes with this order
But In Python 3.x, looks like I could not pass
>>> sorted(x,cmp=customsort) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: 'cmp' is an invalid keyword argument for this function
Is there any alternatives or should I write my own sorted function too?
Note: I simplified by using “k”, “kh”, etc. Actual characters are Unicodes and even more complicated, sometimes there is vowels comes before and after consonents, I’ve done custom comparison function, So that part is ok. Only the problem is I could not pass my custom comparison function to sorted or .sort
Now we will see solution for issue: How to use a custom comparison function in Python 3?
key argument (and follow the recipe on how to convert your old
cmp function to a
functools has a function
cmp_to_key mentioned at docs.python.org/3.6/library/functools.html#functools.cmp_to_key
This question is answered By – Tim Pietzcker
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