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- What does list [:] Do Python?
- What does it mean in Python list [: 1?
- How do I make a list with only one element?
What does list [:] Do Python?
The list() function creates a list object. A list object is a collection which is ordered and changeable. Read more about list in the chapter: Python Lists.
What does it mean in Python list [: 1?
It means "all elements of the sequence but the last". In the context of f. readline()[:-1] it means "I'm pretty sure that line ends with a newline and I want to strip it".
How do I make a list with only one element?
Using Collections. singletonList() This is the simplest and recommended method to create an immutable List with a single element inside it. The list created with this method is also immutable, so you are sure there will not be any more elements in the list, at any condition.
