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JASON LEE
17,352 PointsInconsistent commands and syntax? Just memorize it ?
I noticed some of these python commands appear to be methods, some functions, and some I don't know.
For instance, given an array called my_array = [... .... ...] ...
To get the count of a content or item in an array, it is my_array.count(<content>)
This appears to be a method of the array.
To get the length of the array however, it is len(my_array). len appears to be a function and the argument passed in is the array variable.
And then to delete index items from the array, it is del my_array[a:z] Is the del command in this case supposed to be a function, method of the array, or what ?
Just trying to make sense of how these python commands work, because otherwise I am just going to have to memorize or look up each time.
1 Answer
Jason Larson
8,361 PointsDisclaimer: I don't know Python. I just looked this stuff up, but I think this will answer your question. count() is a built-in method that you can use on lists/arrays (incidentally, you can use count() on strings as well). len() is a built-in function that returns the number of items in an object, or the number of characters in a string. del is a keyword used to delete objects. In Python everything is an object, so the del keyword can also be used to delete variables, lists, parts of a list, etc.
I got this information from W3 Schools: Python Reference and digging around.