When we define a function only gives it a name, specifies the parameters that are to be included in the function and structures the blocks of code and refer to that value .in calling function you have ...

Ok so technically Python is call-by-object and how it behaves depends on what you're doing. The 1st case below behaves like pass-by-value as expected.

I think it's due to the overhead associated with casting back and forth, and for the reasons Python is slow (interpreted, dynamic typing, etc). The other parts of the code have sped up significantly, ...

Python’s new template strings, ... feature in Python provides a convenient way to print variables as part of a string. ... but to pass it to a function that will handle formatting duties.

In Observable, though, cells run in the order they’re needed—what’s called a reactive dataflow.That means you can refer to x with y = x * 10 in a cell above the cell that defines x.And, you ...