Hands-On Reactive Programming with Python

The from_ operator

The from_ operator is the operator that was used in the previous example to create an observable from a list. The marble diagram of this operator is shown in the following figure:

Figure 1.11: The from_ operator

The name of this operator is strange because it ends with an underscore. The reason for this underscore is that from is a reserved keyword in Python, so it was not possible to name this operator as it should be; that is, from. If you dislike this notation, there is an alias named from_list. You can use it for a more Pythonic code at the expense of a longer name.

The prototype of this operator is the following one: ...