I'm running Precise Pangolin amd64. I installed Python 3.3 from ppa:fkrull/deadsnakes.
Now I want to actually use this new Python version in a virtualenv. But How can I do this? I get the following error:
$ virtualenv --no-site-packages --distribute -p /usr/bin/python3.3 ~/.virtualenvs/pywork3
Running virtualenv with interpreter /usr/bin/python3.3
The --no-site-packages flag is deprecated; it is now the default behavior.
New python executable in /home2/USERNAME/.virtualenvs/pywork3/bin/python3.3
Also creating executable in /home2/USERNAME/.virtualenvs/pywork3/bin/python
Traceback (most recent call last): File "/usr/local/lib/python2.7/site-packages/site.py", line 73, in <module> __boot() File "/usr/local/lib/python2.7/site-packages/site.py", line 2, in __boot import sys, imp, os, os.path
ImportError: No module named 'imp'
ERROR: The executable /home2/USERNAME/.virtualenvs/pywork3/bin/python3.3 is not functioning
ERROR: It thinks sys.prefix is '/home2/USERNAME/.virtualenvs' (should be '/home2/USERNAME/.virtualenvs/pywork3')
ERROR: virtualenv is not compatible with this system or executableIf instead, I explicitly use python3.3 to call virtualenv, I get this error:
$ python3.3 /usr/bin/virtualenv --no-site-packages --distribute -p /usr/bin/python3.3 ~/.virtualenvs/pywork3
Traceback (most recent call last): File "/usr/bin/virtualenv", line 2, in <module> import virtualenv
ImportError: No module named 'virtualenv'I'm stuck. Any help is greatly appreciated!
EDIT: Following the advise by @thefourtheye, I purged my local site-packages directory (effectively only deleting site.py). Now I'm getting a step further, but virtualenv complains about a missing easy_install:
Error [Errno 2] No such file or directory:
'/home2/USERNAME/.virtualenvs/pywork3/bin/easy_install' while executing command
/home2/USERNAME/.virt...rk3/bin/easy_install /usr/share/python-virtualenv/pip-1.1.tar.gzI did install the package python3-setuptools, which installs the Py3 version of easy_install.
EDIT2:
Here's the verbose output, without explicitly passing --distribute and --no-site-packages, as these two switches are default behaviour of my virtualenv:
$ virtualenv --verbose -p /usr/bin/python3.3 ~/.virtualenvs/pywork3
Running virtualenv with interpreter /usr/bin/python3.3
Creating /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3
Symlinking Python bootstrap modules Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/config-3.3m Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/lib-dynload Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/os.py Ignoring built-in bootstrap module: posix Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/posixpath.py Cannot import bootstrap module: nt Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/ntpath.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/genericpath.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/fnmatch.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/locale.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/encodings Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/codecs.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/stat.py Cannot import bootstrap module: UserDict Cannot import bootstrap module: copy_reg Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/types.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/re.py Cannot import bootstrap module: sre Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/sre_parse.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/sre_constants.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/sre_compile.py Ignoring built-in bootstrap module: zlib Cannot import bootstrap module: _abcoll Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/warnings.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/linecache.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/abc.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/io.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/_weakrefset.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/copyreg.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/tempfile.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/random.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/__future__.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/collections Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/keyword.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/tarfile.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/shutil.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/struct.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/copy.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/base64.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/bisect.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/_dummy_thread.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/hashlib.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/heapq.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/hmac.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/reprlib.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/rlcompleter.py Symlinking /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/weakref.py
Creating /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/site-packages
Writing /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/site.py
Writing /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/orig-prefix.txt
Writing /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/no-global-site-packages.txt
Creating parent directories for /home2/USERNAME/.virtualenvs/pywork3/include
Symlinking /home2/USERNAME/.virtualenvs/pywork3/include/python3.3m
Creating /home2/USERNAME/.virtualenvs/pywork3/bin
New python executable in /home2/USERNAME/.virtualenvs/pywork3/bin/python3.3
Changed mode of /home2/USERNAME/.virtualenvs/pywork3/bin/python3.3 to 0o755
Also creating executable in /home2/USERNAME/.virtualenvs/pywork3/bin/python
Changed mode of /home2/USERNAME/.virtualenvs/pywork3/bin/python to 0o755
Testing executable with /home2/USERNAME/.virtualenvs/pywork3/bin/python3.3 -c "
import sys
prefix = sys.prefix
if sys.version_info[0] == 3: prefix = prefix.encode('utf8')
if hasattr(sys.stdout, 'detach'): sys.stdout = sys.stdout.detach()
elif hasattr(sys.stdout, 'buffer'): sys.stdout = sys.stdout.buffer
sys.stdout.write(prefix)
"
Got sys.prefix result: '/home2/USERNAME/.virtualenvs/pywork3'
Creating /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/distutils
Writing /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/distutils/__init__.py
Writing /home2/USERNAME/.virtualenvs/pywork3/lib/python3.3/distutils/distutils.cfg
Using existing distribute egg: /usr/share/python-virtualenv/distribute-0.6.24.tar.gz
Installing distribute..............................................................................................................................................................................................................................................................................................................................................................................................................done.
Installing existing pip-1.1.tar.gz distribution: /usr/share/python-virtualenv/pip-1.1.tar.gz
Installing pip... Error [Errno 2] No such file or directory: '/home2/USERNAME/.virtualenvs/pywork3/bin/easy_install' while executing command /home2/USERNAME/.virt...rk3/bin/easy_install /usr/share/python-virtualenv/pip-1.1.tar.gz
...Installing pip...done.
Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 2283, in <module> main() File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 938, in main never_download=options.never_download) File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 1054, in create_environment install_pip(py_executable, search_dirs=search_dirs, never_download=never_download) File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 643, in install_pip filter_stdout=_filter_setup) File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 976, in call_subprocess cwd=cwd, env=env) File "/usr/lib/python3.3/subprocess.py", line 818, in __init__ restore_signals, start_new_session) File "/usr/lib/python3.3/subprocess.py", line 1416, in _execute_child raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: '/home2/USERNAME/.virtualenvs/pywork3/bin/easy_install'7 Answers
Python 3.3 has venv built-in.
Simply run
pyvenv-3.3 /path/to/environmentAnd then to activate it
source /path/to/environment/bin/activateThis built-in version of virtualenv is much more flexible than what you're probably used to. For example, you can extend EnvBuilder to do pretty much whatever you want. You can copy an example implementation of EnvBuilder from the link below and play around with it:
That script above likely does most of what we expect to get out of virtualenv. So if you just need a virtualenv with easy_install and pip, you should be good to go.
See @MarkOfSine's edits below for clarification on how to get running if you're still confused.
To add to the above, and as per docs:
For example, after executing: pyvenv-3.3 /path/to/my_project/venv
You can run distribute_setup.py, which seems to do various things, but essentially you end up with easy_install in your ./my_project/venv/bin directory.
This can then be used to install pip and the like.
It does not say where you should get distribute_setup.py from, so I downloaded from:
and using the activated environment:
cd /path/to/my_project
source venv/bin/activateran :
python distribute_setup.pyand
easy_install pipWhich then completed the setup of the virtual environment more inline with virtualenv on python 2.x
5It is easier than as it seems:
virtualenv -p /usr/bin/python3 yourenv
source yourenv/bin/activate
pip install package-namereally works :)
2Take backup of site-packages.
cp -r /usr/local/lib/python2.7/site-packages/ /tmp/site-packagesTruncate that directory
rm -rf /usr/local/lib/python2.7/site-packages/Now try the same
virtualenv --no-site-packages --distribute -p /usr/bin/python3.3 ~/.virtualenvs/pywork3To install without pip
virtualenv --no-site-packages --distribute -p /usr/bin/python3.3 ~/.virtualenvs/pywork3 --no-pip
EDIT: Looks like the version of virtualenv (1.7.1.2) and python3.3 are not compatible. So, please try this
Uninstall python-virtualenv using
sudo apt-get remove python-virtualenvwget sudo python ez_setup.pyThis will install latest easy_install.sudo easy_install pipsudo pip install virtualenvvirtualenv --no-site-packages --distribute -p /usr/bin/python3.3 ~/.virtualenvs/pywork3
You are doing this far too complicated. If it's included in python3, just create it with :
python3 -m venvYou can even create an alias if you wish to
alias virtualenv3='python3 -m venv'Depending on the machine, you might need to specify the interpreter:
alias virtualenv3='python3 -m venv -p python3'The steps that worked for me: On MAC OSX 10.9.5
Download and install Python-3.4.3 manually.
P3PATH=/Users/$USER/Python3 mkdir -p $P3PATH cd $P3PATH tar -zxvf Python-3.4.3.tgz ./configure --prefix=$P3PATH/Python-3.4.3 make; make installCreate a virtualenv.
$P3PATH/Python-3.4.3/bin/pyvenv py3env source py3env/bin/activate
Note:
virtualenv -p <path to python3> py3env did not work:
Error due to zlibOn Ubuntu 14.04
sudo apt-get install python3-pip
sudo pip install virtualenv
virtualenv-3.4 --no-site-packages venvjust be sure that you installed pip and venv:
sudo apt install python3-pip
sudo apt install python3-venvThen you can use it like this:
python3 -m venv ~/env-sample
. ~/env-sample/bin/activate
