You have found an easter egg in Python. It is a joke. It means that delimiting blocks by braces instead of indentation will never be implemented. Normally, imports from the special __future__ module enable features that are backwards-incompatible, such as the print() function, or true division. So the line from __future__ import braces is taken … Read more
The problem with the first version is that if you go back and add a second statement to the if or else clauses without remembering to add the curly braces, your code will break in unexpected and amusing ways. Maintainability-wise, it’s always smarter to use the second form. EDIT: Ned points this out in the … Read more
Although there is a custom syntax error from the parser, the same trick works as for calling .format on regular strings. Use double curlies: >>> foo = ‘test’ >>> f'{foo} {{bar}}’ ‘test {bar}’ It’s mentioned in the spec here and the docs here.
Let’s attempt to also modify i when we increment j: int j = 0; for (int i = 0 ; i < 100 ; ++i) if (i % 2 == 0) j++; i++; Oh no! Coming from Python, this looks ok, but in fact it isn’t, as it’s equivalent to: int j = 0; for … Read more
Place the cursor next to an opening or closing brace and punch Ctrl + Shift + P to find the matching brace. If Eclipse can’t find one you’ll get a “No matching bracket found” message. edit: as mentioned by Romaintaz below, you can also get Eclipse to auto-select all of the code between two curly … Read more
I found this for you: Jump between braces in Visual Studio: Put your cursor before or after the brace (your choice) and then press CTRL + ]. It works with parentheses ( ), brackets [ ] and braces { }. From now on you don’t need to play Where’s Waldo? to find that brace. With … Read more
In this particular example, it makes no difference. However, the {} in ${} are useful if you want to expand the variable foo in the string “${foo}bar” since “$foobar” would instead expand the variable identified by foobar. Curly braces are also unconditionally required when: expanding array elements, as in ${array[42]} using parameter expansion operations, as … Read more
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