Tox条件创建一个lib64符号链接

Question

I have two virtual environments, both have the same version of tox (3.13.2) and the same python (2.7.5). Using the same tox.ini file, I get two different behaviours: in one case, there is a lib64 symlink, not in the other.

What causes tox to create it?

Tox.ini reads:

Set up the run time environment

[tox]
envlist = env
minversion = 1.7.0
toxworkdir = {toxinidir}/virtenv
skipsdist = True

[testenv:rprs-env]
setenv=
    VIRTUAL_ENV = {envdir}
    PIP_USE_WHEEL= true
    PIP_NO_INDEX = true
deps = -r{toxinidir}/tox/requirements-pinned.txt
install_command = pip install --pre --find-links={toxinidir}/tox/wheelhouse {packages}

And command lines show:

test-devtree-Sxi7_C_t(feature/DTD-12|+4); ~/.virtualenvs/test_rprs_bootstrap/bin/tox -c tox.ini -r
env recreate: /home/usr/repos/test-devtree/Run/virtenv/env
env installdeps: -r/home/usr/repos/test-devtree/Run/tox/requirements-pinned.txt
env installed: DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support,backports.functools-lru-cache==1.5,blosc==1.2.4,click==6.7,click-help-colors==0.4,colored-traceback==0.3.0,coloredlogs==10.0,cycler==0.10.0,Cython==0.24.1,docopt==0.6.2,enum==0.4.6,enum34==1.1.6,funcsigs==1.0.2,future==0.16.0,h5py==2.5.0,h5pyViewer==0.0.1.3,hickle==1.3.0,humanfriendly==4.16.1,humanize==0.5.1,kiwisolver==1.0.1,matplotlib==2.2.3,mock==1.0.0,monotonic==1.5,MySQL-python==1.2.3,nose==1.3.7,numexpr==2.6.8,numpy==1.15.1,pandas==0.23.4,pbr==1.10.0,py==1.4.30,Pygments==2.0.2,pyparsing==2.1.10,python-cjson==1.0.5,python-dateutil==2.7.3,pytz==2016.7,scipy==1.1.0,six==1.11.0,SQLAlchemy==0.9.7,subprocess32==3.2.7,sympy==0.7.6,tables==3.4.4,tox==1.7.0,Twisted==11.0.0,ujson==1.33,virtualenv==1.11.4,xlwt==1.0.0,zope.interface==4.1.1
env run-test-pre: PYTHONHASHSEED='1275167437'
__________________________________________________________________________________________________________________________________________________________ summary __________________________________________________________________________________________________________________________________________________________
  env: commands succeeded
  congratulations :)
test-devtree-Sxi7_C_t(feature/DTD-12|+4); ls -l virtenv/env/
total 4.0K
4.0K drwxrwxr-x. 2 usr usr 4.0K Sep  2 12:25 bin/
   0 drwxrwxr-x. 2 usr usr   22 Sep  2 12:25 include/
   0 drwxrwxr-x. 3 usr usr   22 Sep  2 12:25 lib/
   0 lrwxrwxrwx. 1 usr usr    3 Sep  2 12:25 lib64 -> lib/
   0 drwxrwxr-x. 2 usr usr   81 Sep  2 12:25 log/
   0 drwxrwxr-x. 3 usr usr   17 Sep  2 12:25 man/
   0 drwxrwxr-x. 3 usr usr   16 Sep  2 12:25 share/
   0 drwxrwxr-x. 2 usr usr    6 Sep  2 12:25 tmp/
test-devtree-Sxi7_C_t(feature/DTD-12|+4); tox -c tox.ini -r 
env recreate: /home/usr/repos/test-devtree/Run/virtenv/env
env installdeps: -r/home/usr/repos/test-devtree/Run/tox/requirements-pinned.txt
env installed: DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support,backports.functools-lru-cache==1.5,blosc==1.2.4,click==6.7,click-help-colors==0.4,colored-traceback==0.3.0,coloredlogs==10.0,cycler==0.10.0,Cython==0.24.1,docopt==0.6.2,enum==0.4.6,enum34==1.1.6,funcsigs==1.0.2,future==0.16.0,h5py==2.5.0,h5pyViewer==0.0.1.3,hickle==1.3.0,humanfriendly==4.16.1,humanize==0.5.1,kiwisolver==1.0.1,matplotlib==2.2.3,mock==1.0.0,monotonic==1.5,MySQL-python==1.2.3,nose==1.3.7,numexpr==2.6.8,numpy==1.15.1,pandas==0.23.4,pbr==1.10.0,py==1.4.30,Pygments==2.0.2,pyparsing==2.1.10,python-cjson==1.0.5,python-dateutil==2.7.3,pytz==2016.7,scipy==1.1.0,six==1.11.0,SQLAlchemy==0.9.7,subprocess32==3.2.7,sympy==0.7.6,tables==3.4.4,tox==1.7.0,Twisted==11.0.0,ujson==1.33,virtualenv==1.11.4,xlwt==1.0.0,zope.interface==4.1.1
env run-test-pre: PYTHONHASHSEED='3823901851'
__________________________________________________________________________________________________________________________________________________________ summary __________________________________________________________________________________________________________________________________________________________
  env: commands succeeded
  congratulations :)
test-devtree-Sxi7_C_t(feature/DTD-12|+4); ls -l virtenv/env/
total 4.0K
4.0K drwxrwxr-x. 2 usr usr 4.0K Sep  2 12:26 bin/
   0 drwxrwxr-x. 2 usr usr   22 Sep  2 12:25 include/
   0 drwxrwxr-x. 3 usr usr   22 Sep  2 12:25 lib/
   0 drwxrwxr-x. 2 usr usr   81 Sep  2 12:26 log/
   0 drwxrwxr-x. 3 usr usr   17 Sep  2 12:25 man/
   0 drwxrwxr-x. 3 usr usr   16 Sep  2 12:26 share/
   0 drwxrwxr-x. 2 usr usr    6 Sep  2 12:26 tmp/
test-devtree-Sxi7_C_t(feature/DTD-12|+4); tox --version    
3.13.2 imported from /home/usr/.virtualenvs/test-devtree-Sxi7_C_t/lib/python2.7/site-packages/tox/__init__.pyc
test-devtree-Sxi7_C_t(feature/DTD-12|+4); ~/.virtualenvs/test_rprs_bootstrap/bin/tox --version    
3.13.2 imported from /home/usr/.virtualenvs/test_rprs_bootstrap/lib/python2.7/site-packages/tox/__init__.pyc

Answer 1

☠ pyenv was the culprit!

If you use a locally installed version, then install tox, then use that tox then no lib64 symlink will be created. However, if you specify pyenv local system as the Python version you want to use, then create your pipenv virtual environment with

pipenv install --ignore-pipfile --python=/usr/bin/python

You should get tox to create a lib64 symlink.

A much better solution (with 20/20 hindsight) is not to rely on lib64 for Python…