What Is Expression
Q
What Is an expression in Python?
✍: FYIcenter.com
A
An expression in Python is a sequence of
operations or method calls applied on data objects.
An expression has two impacts when executed:
- Code statements of invoked methods get executed. This may create new data objects, update existing data objects, consume resources, etc.
- A data object gets returned.
For example, execute following expression:
>>> [1,4,9].append(16)
Python will:
- Execute the "list" constructor method to create a "list" data object with [1,4,9].
- Execute the "list.append()" method to update the "list" data object by adding 16 to the end.
- Return the "None" object.
2017-09-09, 111👍, 0💬