1 Minute Read #17: f-strings in Python*

For example below is a standard way of handling strings using .format :You can be cute with this, and change the order (the index) in which the variables are called:Endless fun can be had in this manner…however…there is another way:Note the use of the (f”Hello…”) here — the f can be capitalised to F(“Hello…”), and it tells Python that you wish to use previously declared variables in this string.f-strings disturb old-school Pythonistas who have got so very used to the .format method..This is equivalent to moving from a top-loading washing machine to a front-loader..F-strings are just, plainly, better and simpler, and, in speed tests, quite a bit faster in the way they parse..See some slightly more complex code below, using capital F for hopefully more clarity:You can see that the old .format method is absolutely fine, but it is a tad elongated..The newer f-string manner just scans better for our puny human brains, doing away with the strung-out .format parameters..Here is another example — using multiline strings:Finally, dictionaries — never easy things to handle in Python, but they do make a good deal more sense using f-strings:Convinced?.If not, hop onto Python 3.6 or 3.7 and give them a couple of days..You will never look back.*Admittedly this is longer than a ‘1 Minute read’, but f-strings are just worth reading about for more than a minute..I recognise that I have strung this out a bit..Chortle.. More details

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