On Jan 3, 7:04 am, Bernhard Merkle <[EMAIL PROTECTED]> wrote: > Hi there, > > I am reading Learning Python 3e from Mark Lutz and just found out that > reassigning to builtins is possible. > What is the reason, why Python allows this ? IMO this is very risky > and can lead to hard to find errors. I don't think it's a huge issue. In fact, I think it's a feature. For example, it'd be extremely issue to reassign open, if you wanted to implement a virtual file system, and you couldn't modify the module the used open. > (see also Learning Python 3e, Chapter 16, Page 315) > > >>> True > True > >>> False > False > >>> True = 1 > >>> True > 1 > >>> True = 0 > >>> True > > 0 > > TIA, > Berni
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