I get the following error message when trying to set up a virtual environment with virtualenv 15.0.2 but receive OSError setuptools pip wheel failed with error code 1.
New python executable in /Users/nathmorissette/projects/tutorial/venv/bin/python
Installing setuptools, pip, wheel...
Complete output from command /Users/nathmorissett...rial/venv/bin/python - setuptools pip wheel:
Traceback (most recent call last):
File "<stdin>", line 4, in <module>
File "/Users/nathmorissette/miniconda2/lib/python2.7/tempfile.py", line 32, in <module>
import io as _io
File "/Users/nathmorissette/miniconda2/lib/python2.7/io.py", line 51, in <module>
import _io
ImportError: dlopen(/Users/nathmorissette/projects/tutorial/venv/lib/python2.7/lib-dynload/_io.so, 2): Symbol not found: __PyCodecInfo_GetIncrementalDecoder
Referenced from: /Users/nathmorissette/projects/tutorial/venv/lib/python2.7/lib-dynload/_io.so
Expected in: dynamic lookup
----------------------------------------
...Installing setuptools, pip, wheel...done.
Traceback (most recent call last):
File "/Users/nathmorissette/miniconda2/bin/virtualenv", line 9, in <module>
load_entry_point('virtualenv==15.0.2', 'console_scripts', 'virtualenv')()
File "/Users/nathmorissette/miniconda2/lib/python2.7/site-packages/virtualenv-15.0.2-py2.7.egg/virtualenv.py", line 711, in main
symlink=options.symlink)
File "/Users/nathmorissette/miniconda2/lib/python2.7/site-packages/virtualenv-15.0.2-py2.7.egg/virtualenv.py", line 944, in create_environment
download=download,
File "/Users/nathmorissette/miniconda2/lib/python2.7/site-packages/virtualenv-15.0.2-py2.7.egg/virtualenv.py", line 900, in install_wheel
call_subprocess(cmd, show_stdout=False, extra_env=env, stdin=SCRIPT)
File "/Users/nathmorissette/miniconda2/lib/python2.7/site-packages/virtualenv-15.0.2-py2.7.egg/virtualenv.py", line 795, in call_subprocess
% (cmd_desc, proc.returncode))
OSError: Command /Users/nathmorissett...rial/venv/bin/python - setuptools pip wheel failed with error code 1
Any ideas how to resolve this issue?
I tried for hours, read lots of posts and finally find a way out.
pip uninstall virtualenv
conda install virtualenv
The reason is the virtualenv installed by pip is not compatible with conda. I don't know more details, but it works for me.