[capi-sig] String to number conversion

[Hrvoje Niksic]

Rasmus Andersson <rasmus at spotify.com> writes:

> Could you maybe give a real-world scenario where this would be
> needed?

It is needed when writing Python numbers to a file and reading them
back, reliably.  In that case strtoll and friends won't work because,
while they work on one data type, they fail on others (float, complex,
and (Python) long in the case of strtoll).