I am running virtualenv burrito and getting an error that there are too many levels of symbolic links. I have no idea what that means.
mkvirtualenv --python /usr/local/bin/Python3 mantis
Error:
Running virtualenv with interpreter /usr/local/bin/Python3
Using base prefix '/Library/Frameworks/Python.framework/Versions/3.4'
New python executable in mantis/bin/Python3
Also creating executable in mantis/bin/python
Traceback (most recent call last):
File "/Users/croberts/.venvburrito/lib/python2.7/site-packages/virtualenv.py", line 2352, in <module>
main()
File "/Users/croberts/.venvburrito/lib/python2.7/site-packages/virtualenv.py", line 825, in main
symlink=options.symlink)
File "/Users/croberts/.venvburrito/lib/python2.7/site-packages/virtualenv.py", line 985, in create_environment
site_packages=site_packages, clear=clear, symlink=symlink))
File "/Users/croberts/.venvburrito/lib/python2.7/site-packages/virtualenv.py", line 1439, in install_python
raise e
File "/Users/croberts/.venvburrito/lib/python2.7/site-packages/virtualenv.py", line 1431, in install_python
stdout=subprocess.PIPE)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/subprocess.py", line 859, in __init__
restore_signals, start_new_session)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/subprocess.py", line 1457, in _execute_child
raise child_exception_type(errno_num, err_msg)
OSError: [Errno 62] Too many levels of symbolic links
I was getting this error before and solved it by doing Python3.4 instead of Python3. Now it won't work no matter which python I try to use. Even if I try to use the default (2.7)
Strangely, I ran into this when I tried to create a virtualenv with a name that already existed. Solution to remove the old and create a new one:
rmvirtualenv old-one
mkvirtualenv new-one
I had the same problem on OSX.
I got rid of it after:
1. removing env folder
2. removing __pycache__ folder
The reason this wasn't working was because I was capitalizing Python. As soon as I did it using python3 instead of Python3 I stopped getting trouble.
I'm using a mac and I solved this by rm the virtual env that is named the same as you are trying to create. Specifically, I rm the folder within Users/user_name/.virtualenvs/. Then the create worked.
I came across it after I had built my freshest environment. Because it has been interrupted by myself while it was building the new one. Then I noticed that virtualenvwrapper already created a new environment folder underneath the environment directory but it has not been accomplished properly. Hence, I deleted the lastest environment folder and retried to install same environment. It fixed!
I had the same problem in raspberry pi during open cv installation.
I solve my problem by using below method.
Go to /home/pi
ls -all and check weather .virtualenvs is there or not
if it is there remove it by
rm -r .virtualenvs
I'm not sure why but using
python3 -m venv venv
instead of
virtualenv -p python3 venv
and then activating the venv or setting the paths manually, something like this
export PYTHONPATH=.:\$PYTHONPATH
VIRTUAL_ENV=`pwd`/venv
export VIRTUAL_ENV
PATH="\$VIRTUAL_ENV/bin:\$PATH"
export PATH
worked for me.
I tried to do some quick searching of the different between virtualenv and python3 -m venv module...but didn't find anything.
File "/Users/croberts/? seems you're using Windows. Consider using 'virtualenvwrapper-win'. The latest version is 1.2.0 which support python 2 up to 3.4. I've used it without any problems. If you use several versions of python on your computer, you can switch between them using 'pywin'.
For making new virtualenv:
C:\Users\your_directory>mkvirtualenv neo
Using base prefix 'C:\\Python34'
New python executable in neo\Scripts\python.exe
Installing setuptools, pip...done.
For view existing virtualenv:
C:\Users\your_directory>lsvirtualenv
dir /b /ad "C:\Users\your_directory"
=========================================================================
env0
env1
env2
neo
