Re: qualified imports, PVP and so on (Was: add new Data.Bits.Bits(bitZero) method)

On Wed, Feb 26, 2014 at 12:50 PM, Erik Hesselink wrote:

On Wed, Feb 26, 2014 at 10:56 AM, Michael Snoyman wrote:

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On Wed, Feb 26, 2014 at 10:36 AM, John Lato wrote:

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Upper bounds lead to a better user experience.

That's what I'm disagreeing with. I do not believe that, overall, the PVP is giving users a better experience. I've had a huge downturn in reported errors with Yesod since I stopped strictly following the PVP. It's anecdotal, but everything in this thread is really anecdotal.

But you also tell people to use stackage and yesod-platform, which fixes a lot of packages to a specific version, IIRC. That means that not having upper bounds is kind of moot.

As a counter-anecdote, almost all build-related problems we've had in the past year have been (http-)conduit or tls related, due to the lack of upper bounds.

Erik

That's a fair point, I left out X factors in this analysis. So I'll say something else instead: back when I followed strict PVP compliance, I still got a lot of reports of broken builds, and my maintenance overhead was very high. Since I dropped PVP compliance and implemented alternative solutions, the reports I've received have gone down dramatically, and I spend far less time on maintenance. So color me unconvinced that the PVP really made a big difference in users' experiences. Michael