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Re: Why does pathlib not have is_readable() & things like that?

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Adam Funk writes:

> On 2016-04-26, Random832 wrote:
>
>> On Tue, Apr 26, 2016, at 09:30, Adam Funk wrote:
>>> I recently discovered pathlib in the Python 3 standard library, & find
>>> it very useful, but I'm a bit surprised that it doesn't offer things
>>> like is_readable() and is_writable.  Is there a good reason for that?
>>
>> Well, one reason would be EAFP. Just try to open the file and see if it
>> gives you a PermissionError.
>
> I understand that in general, but the tool I'm working on here takes a
> command-line option to specify an output directory, & I'd rather not
> start processing the data (which involves GETting from a REST service,
> processing, and PUTting back modifications to the data) only to crash
> after the first batch because of a user error.

Open an output file first. Crash before reading the first batch.

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Why does pathlib not have is_readable() & things like that? Adam Funk <a24061@ducksburg.com> - 2016-04-26 14:30 +0100
  Re: Why does pathlib not have is_readable() & things like that? Random832 <random832@fastmail.com> - 2016-04-26 09:57 -0400
    Re: Why does pathlib not have is_readable() & things like that? Adam Funk <a24061@ducksburg.com> - 2016-04-28 14:02 +0100
      Re: Why does pathlib not have is_readable() & things like that? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-04-28 16:24 +0300
      Re: Why does pathlib not have is_readable() & things like that? Grant Edwards <grant.b.edwards@gmail.com> - 2016-04-28 13:34 +0000
        Re: Why does pathlib not have is_readable() & things like that? Adam Funk <a24061@ducksburg.com> - 2016-04-29 10:49 +0100
          Re: Why does pathlib not have is_readable() & things like that? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-04-29 14:51 +0300
            Re: Why does pathlib not have is_readable() & things like that? eryk sun <eryksun@gmail.com> - 2016-04-29 10:09 -0500
            Re: Why does pathlib not have is_readable() & things like that? Grant Edwards <grant.b.edwards@gmail.com> - 2016-04-29 23:53 +0000
  Re: Why does pathlib not have is_readable() & things like that? Steven D'Aprano <steve@pearwood.info> - 2016-04-27 01:46 +1000
    Re: Why does pathlib not have is_readable() & things like that? Adam Funk <a24061@ducksburg.com> - 2016-04-28 13:57 +0100

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