Hongyi Zhao <hongyi.z...@gmail.com> 于2019年10月8日周二 下午4:53写道： > > Cameron Simpson <c...@cskk.id.au> 于2019年10月8日周二 下午12:25写道： > > > > On 08Oct2019 02:49, Hongyi Zhao <hongyi.z...@gmail.com> wrote: > > >On Tue, 08 Oct 2019 06:28:05 +0530, Pankaj Jangid wrote: > > >> A very good use-case is when you have both, python2 and python3 > > >> installed. > > >> python2 -m pip install mod > > >> python3 -m pip install mod > > >> will install the package in the corresponding PYTHONPATH. > > >> > > > > > >If so, why not just: > > >pip2 install mod > > >and using: > > >pip3 install mod > > > > Because of the slight disconnect between "pip2" and "python2", etc. Do > > you _know_ they both use the same Python install? With "pythonX -m pip" > > you're using the same python executable which will be accessing what you > > just installed. > > I use pyenv + pip, which will do the trick.
And nowadays, the pyenv + vurtualenv + pip + pipenv is the suggested env management method for python. In this way, the pipenv will solve the version dependence of the underlying tool chain and corresponding used packages/modules. > > > > > It isn't a deal breaker, but preferred: one less moving part. > > > > Cheers, > > Cameron Simpson <c...@cskk.id.au> > > > > -- > Hongsheng Zhao <hongyi.z...@gmail.com> > Institute of Semiconductors, Chinese Academy of Sciences > GnuPG DSA: 0xD108493 -- Hongsheng Zhao <hongyi.z...@gmail.com> Institute of Semiconductors, Chinese Academy of Sciences GnuPG DSA: 0xD108493 -- https://mail.python.org/mailman/listinfo/python-list
