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I've defined a custom type which consists of, among other things, an unexported array.
What I'm wondering is, is there a way for me to override the implementation of the len() function for my custom type without having to export the array?
Thanks.
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New Python users are often surprised to learn that you call a global function named len() to get the number of items in a container.
The len() built-in function deals directly with built-in types: the CPython implementation of len() actually returns the value of the ob_size field in the PyVarObject C struct that represents any variable-sized built-in object in memory. This is much faster than calling a method -- no attribute lookup needs to happen.
The function len() is one of Python's built-in functions. It returns the length of an object. For example, it can return the number of items in a list. You can use the function with many different data types.
The LEN Function[1] is categorized under Excel TEXT functions. The function will return the length of a given text string. In financial analysis, the LEN function can be useful if we wish to get the length of a given text string as the number of characters.
No. You can however add a Len() method to your type.
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