10 Reasons to use brackets to select a pandas DataFrame column and NOT dot notation
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10 Reasons to choose the brackets instead of dot notation
Select column names with spaces
Select column names that have the same name as methods
Select columns with variables
Select non-string columns
Set new columns
Select multiple columns
Dot notation is a strict subset of the brackets
Use one way which works for all situations
Auto-completion works in the brackets and following it
Brackets are the canonical way to select subsets for all objects