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Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions

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dieter <dieter@handshake.de> writes:
<snip>
>> Lawrence D’Oliveiro wrote:
<snip>
>>> I don’t know why this fear and suspicion of lambdas is so widespread among
>>> Python users ... former Java/C# programmers, perhaps?

By replying I'm not accepting the premise -- I have no idea if there is
widespread fear and suspicion of lambdas among Python users but it seems
unlikely.

> Maybe, it's the name ("lambda").
>
> In Javascript, anonymous functions are widespread (and extensively
> used for e.g. callback definitions)

Yes, but in Python they are restricted to a single expression.  It's
therefore quite likely that programmers who want the semantics of an
anonymous function just define a named function and use that instead.
That saves you from having to decide, up front, if an expression is
going to be enough or from having to change it later if you find that it
isn't.

> - but it uses the much more familiar
> "function" (rather than "lambda") for this purpose.

... or the new arrow notation.

-- 
Ben.

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Meta decorator with parameters, defined in explicit functions Ben Finney <ben+python@benfinney.id.au> - 2016-06-28 15:02 +1000
  Re: Meta decorator with parameters, defined in explicit functions Paul Rubin <no.email@nospam.invalid> - 2016-06-27 23:08 -0700
  Re: Meta decorator with parameters, defined in explicit functions Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-06-28 18:39 +1000
  Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-29 19:43 -0700
    Re: Meta decorator with parameters, defined in explicit functions Steven D'Aprano <steve@pearwood.info> - 2016-06-30 13:49 +1000
    Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions Peter Otten <__peter__@web.de> - 2016-06-30 09:25 +0200
      Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-30 00:43 -0700
        Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-06-30 18:00 +1000
        Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions Peter Otten <__peter__@web.de> - 2016-06-30 10:41 +0200
    Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions dieter <dieter@handshake.de> - 2016-07-01 09:04 +0200
      Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-01 21:25 +0100
        Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions Ben Finney <ben+python@benfinney.id.au> - 2016-07-02 11:52 +1000
        Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions dieter <dieter@handshake.de> - 2016-07-02 08:57 +0200
        Re: Fear and suspicion of lambdas, was Re: Meta decorator with parameters, defined in explicit functions Ben Finney <ben+python@benfinney.id.au> - 2016-07-02 18:00 +1000
  Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-29 19:50 -0700
  Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-01 15:08 -0700
    Re: Meta decorator with parameters, defined in explicit functions Ian Kelly <ian.g.kelly@gmail.com> - 2016-07-01 23:09 -0600
      Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-01 23:40 -0700
        Re: Meta decorator with parameters, defined in explicit functions Ian Kelly <ian.g.kelly@gmail.com> - 2016-07-02 22:48 -0600
          Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-02 22:37 -0700
            Re: Meta decorator with parameters, defined in explicit functions Ian Kelly <ian.g.kelly@gmail.com> - 2016-07-03 05:52 -0600
              Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-03 14:17 -0700
                Re: Meta decorator with parameters, defined in explicit functions Ian Kelly <ian.g.kelly@gmail.com> - 2016-07-03 16:38 -0600
                Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-03 16:25 -0700
                Re: Meta decorator with parameters, defined in explicit functions Chris Angelico <rosuav@gmail.com> - 2016-07-04 09:39 +1000
                Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-03 16:59 -0700
                Re: Meta decorator with parameters, defined in explicit functions Chris Angelico <rosuav@gmail.com> - 2016-07-04 10:06 +1000
                Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-03 17:23 -0700
                Re: Meta decorator with parameters, defined in explicit functions Ian Kelly <ian.g.kelly@gmail.com> - 2016-07-03 18:01 -0600
                Re: Meta decorator with parameters, defined in explicit functions Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-07-03 17:06 -0700
                Re: Meta decorator with parameters, defined in explicit functions Ian Kelly <ian.g.kelly@gmail.com> - 2016-07-03 18:20 -0600
    Re: Meta decorator with parameters, defined in explicit functions Ben Finney <ben+python@benfinney.id.au> - 2016-07-02 15:32 +1000
    Re: Meta decorator with parameters, defined in explicit functions Ian Kelly <ian.g.kelly@gmail.com> - 2016-07-01 23:53 -0600

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