Difficulty with `cmp', still
François Pinard
pinard at iro.umontreal.ca
Tue Sep 21 19:20:54 EDT 1999
"Gordon McMillan" <gmcm at hypernet.com> écrit:
> You need to: "import __builtin__" and use "__builtin__.cmp".
"Fredrik Lundh" <fredrik at pythonware.com> écrit:
> Use "__builtin__", not "__builtins__". And you have to import it,
> just like any other module.
Thanks to both of you. It solved it indeed.
I noticed indeed that `__builtins__' says it is the module `__builtin__',
without an `s', at least interactively. But did not understand why this
subtle difference.
Gordon adds:
> __builtins__ is a dictionary.
So, it is a dictionary in batch, and a module interactively? This looks
rather strange. It does not fit well within Python's usual simplicity.
> Recall things like eval and exec, where you can pass a globals dict. If
> this dict is empty, Python will stuff an entry "__builtins__" into it
> for the eval'ed / exec'ed code to use.
Thanks for the pointer. On the next reading session in the manuals,
I'll try to understand this better. Thanks!
> BTW, I fell for it, and voluteered to carry out the BDFL's "suggestion".
Oops! I'm unable to decipher the above sentence, not knowing the meaning
of `fell' nor `BDFL'. Is `fell' associated with `to feel', or `to fall'?
Also, I do not have `BDFL' in this little collection of acronyms I slowly
accumulated along the years, which English people affectionate in email. :-)
--
François Pinard http://www.iro.umontreal.ca/~pinard
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