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best way to remove leading zeros from a tuple like string

Thomas Jollans wrote:

> On 2018-05-20 23:54, Paul wrote:
> > you will find several useful sites where you can test regexes.
> What's the benefit of those compared to simply trying out the regex in a
> Python console?

Possibly nothing.  But there are obvious benefits compared to trying to
write and test such an expression in one's head, which was the situation
which led me to suggest it.  :)