On Thu, Apr 24, 2014 at 4:59 PM, Barry Warsaw <barry at python.org> wrote: > I will say this: the original preference for underscore_names in PEP 8 was > spurred by user studies some of our early non-native English speaking users > conducted many years ago. We learned that it was more difficult for many of > them to parse mixedCase names than underscore_names. I'm afraid I probably no > longer have references to those studies, but the difference was pronounced, > IIRC, and I think it's easy to see why. Underscores can be scanned by the eye > as spaces, while I'd hypothesize that the brain has to do more work to read > mixedCase names. I speak two languages as mother tongues - English and Hebrew. Hebrew has no capital letters (and is also right-to-left) and is the spoken and written language in the parts of Israel where I've lived most of my life. Perhaps because of this, I do find that capital letters don't quite "jump out" for me and therefore I find mixedCase and CamelCase harder to grok at a quick glance than under_score_names. - Tal
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