Python split and join strings to arrays and back

sure! in python, the `split()` method is used to split a string into a list of substrings based on a specified delimiter. the `join()` method is used to concatenate the elements of an iterable (such as a list) into a single string using a specified separator.

here is an example that demonstrates how to split a string into an array using the `split()` method and then join the elements of the array back into a string using the `join()` method:

in the above example:
1. we first define a string `my_string` that contains comma-separated values.
2. we use the `split(",")` method to split the string into an array `my_array` using the comma `,` as the delimiter.
3. we print the resulting array `my_array`.
4. we then use the `join()` method with a space separator to concatenate the elements of the array back into a single string and store it in `new_string`.
5. finally, we print the new concatenated string.

this example demonstrates how you can easily split a string into an array and then join the elements of the array back into a string in python using the `split()` and `join()` methods.

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