How do I escape curly-brace ({}) characters in a string while using .format (or an f-string)?

You need to double the {{ and }}: >>> x = ” {{ Hello }} {0} ” >>> print(x.format(42)) ‘ { Hello } 42 ‘ Here’s the relevant part of the Python documentation for format string syntax: Format strings contain “replacement fields” surrounded by curly braces {}. Anything that is not contained in braces is … Read more

What Is a Curly-Brace Enclosed List If Not an intializer_list?

It is an braced-init-list. A braced-init-list existed before std::initializer_list and is used to initialize aggregates. int arr[] = {1,2,3,4,5}; The above used a braced-init-list to initialize the array, no std::initializer_list is created. On the other hand when you do std::vector<int> foo = {1,2,3,4,5}; foo is not an aggregate so the braced-init-list is used to create … Read more