On Sat, May 04, 2019 at 06:51:39PM +0300, Serhiy Storchaka wrote:
> It is less important for f-strings because you can use arbitrary
> expressions, but even in this case f"Hello, {name!x}!" or f"Hello,
> {name!xml}!" looks better than f"Hello, {html.escape(name)}!" or
> f"Hello, {x(name)}!".
html.escape(name) is mostly self-documenting. !x is a cryptic, arbitrary
code. Why !x rather than !e ("escape") or !h ("html") or !g for that
matter?
Compact mini-languages like regexes and format codes are compact but
cryptic. They're harder to read, especially when you're reading less
common codes. Probably most people could guess that %y in a date format
string means "year", but how many people will recognise %G and %j
without looking them up?
--
Steven
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