In article <6e0bbc6b-9435-4a4b-8840-8a46cc4e0...@googlegroups.com>, duf...@gmail.com wrote:
> I am starting to have doubts as to whether Python 3.x will ever be actually > adopted by the Python community at large as their standard. Years have > passed, and a LARGE number of Python programmers has not even bothered > learning version 3.x. Why am I bothered by this? Because of lot of good > libraries are still only for version 2.x, and there is no sign of their being > updated for v3.x. It's a chicken-and-egg thing. People aren't moving because the libraries they depend on don't yet support P3, so there's not a lot of people using P3, so there's not a lot of pressure for libraries to support it, etc. Here's our list of external Python dependencies (mostly installed with pip, a few of the harder to build ones we install as binaries with apt-get). I'll annotate them with what P3 support is available. I'm doing this quickly, so may not be 100% accurate (and I ran out of time, so I started just looking at the major ones): argparse==1.2.1 # included in P3 beanstalkc==0.3.0 # no support blinker==1.2 # P3 supported boto==2.5.1 # no support dateglob==0.1 # no support, probably not critical decorator==3.3.3 # P3 supported django==1.4.5 # P3 support in 1.6 (RC just released) django-multi-sessions==0.1.0 # no support, probably not critical django-timedeltafield==0.7.0 # no support, probably not critical dnspython==1.11.0 # P3 supported elasticsearch==0.4.2 # no support (unclear) Fabric==1.7.0 # "eventual Python 3.x compatibility" gevent==0.13.8 # no support grequests==0.2.0 # no support gunicorn==0.17.4 # P3 supported jellyfish==0.2.0 # no support Jinja2==2.7.1 # "upcoming" support for P3 leveldb==0.19 # no support lxml==2.2.4 # P3 supported markdown==2.3.1 MarkupSafe==0.18 mongoengine==0.7.10 # P3 support on the roadmap for 0.9 release mrjob==0.4 msgpack-python==0.3.0 nose==1.3.0 numpy==1.6.1 # "some [...] packages still only work on Python 2" pandas==0.9.1 paramiko==1.11.0 Paste==1.7.2 PIL==1.1.7 prettytable==0.7 psycopg2==2.5 pyasn1==0.1.7 pymongo==2.5.2 # P3 supported pyparsing==1.5.2 pysnmp==4.2.3 python-cjson==1.0.5 python-dateutil==1.4.1 python-memcached==1.53 pytz==2010b pyzmq==13.1.0 requests==1.2.0 # P3 supported rpclib==2.7.0-beta scipy==0.9.0 setproctitle==1.1.6 statsd==2.0.3 suds==0.4 tornado==3.1 ujson==1.23 Unidecode==0.04.5 unittest2==0.5.1 > I get the impression as if 3.x, despite being better and > more advanced than 2.x from the technical point of view, is a bit of a > letdown in terms of adoption. I would agree. I think the handwriting is on the wall that we'll get there eventually, but it's taking a lot longer than I would have expected. I think we're at the point where most major projects either already support P3, or at least have it on their roadmaps, and people learning Python in school are starting to be taught P3 instead of P2. But I think we're not going to see P3 be the predominant version for several more years. -- https://mail.python.org/mailman/listinfo/python-list
