I'm having trouble installing packages using virtualenv with python. I do the following:
sudo virtualenv venv
cd venv/bin
source activate
pip install nose
I get the following error:
unable to execute /Users/../venv/bin/pip: No such file or directory
What am I doing wrong here?
run:
cd /usr/local/bin
sudo ./pip install virtualenv
which virtualenv
This should point to /usr/local/bin/virtualenv
which pip
This should point to /usr/local/bin/pip
virtualenv /Users/yourname/path/to/env/envname
Related
I was creating a new virtual environment on Ubuntu 20.04:
$ virtualenv my_env
But it gave an error:
ModuleNotFoundError: No module named 'virtualenv.seed.embed.via_app_data'
Other info:
$ virtualenv --version
virtualenv 20.0.17 from /usr/lib/python3/dist-packages/virtualenv/__init__.py
#yushulx
I also ran into the same issue. I installed both via pip3 and via sudo apt install python3-virtualenv and it gave me an error but after I ran pip3 uninstall virtualenv I could create a virtualenv without issue
Try to create the virtual environment using directly venv module
python3 -m venv my_env
To fix this on Ubuntu 20.04, I had to uninstall virtualenv from the system: apt remove python3-virtualenv, and reinstall it using pip: pip install --user virtualenv --force-reinstall. I had errors about dependencies conflicts, I fixed them by calling pip install --user ${package} --force-reinstall for every package involved.
virtualenv is installed by default with python itself and when you install virtualenv via pip3 and try to create virtual environment using pipenv you will get this error:
ModuleNotFoundError: No module named 'virtualenv.seed.embed.via_app_data
check the version of installed virtualenv using apt list --installed
mine is:
python3-virtualenv/focal,focal,now 20.0.17-1 all [installed,automatic]
with the installed virtualenv by pip3
min is :
virtualenv 20.4.0
default installation of virtualenv is different with pip3 installed virtualenv
so when you try to create a virtual environment using pipenv for example installing django in a directory home/user/djano with pipenv install django~=3.1.5 you will get that error
the solution is remove installed virtualenv using pip3 uninstall virtualenv and use the default installation of virtualenv this time when you create virtual environment with pipenv it will create it successfully.
I want to have virtualenvwrapper. On Debian 10 testing I did:
apt remove python3-virtualenvwrapper # not purge, I want no changes in ~/.virtualenvs/
apt purge python3-virtualenv
/usr/bin/python3.8 -m pip install --force-reinstall virtualenvwrapper
/usr/bin/python3.8 -m pip install --force-reinstall virtualenv==20.0.23
.24 no longer works. I hope it will be solved sometimes...
EDIT 2021.01: I have changed my stack to: pyenv + pyenv-virtualenvwrapper + poetry. Ie. I use no apt or pip installation of virtualenv or virtualenvwrapper, and instead I install pyenv's plugin pyenv-virtualenvwrapper. This is easier way.
If someone encounters this problem inside existing env (when for example using pyenv) you can also use command below (found on GitHub when tried to fix poetry virtual env installation):
pip install --force-reinstall virtualenv
When I installed virtualenv via pip3, it failed to run virtualenv command. Then I changed the installation via:
sudo apt install python3-virtualenv
The virtualenv command can normally work.
I too had this issue. What I found is it is a permissions issue. For some unknown reason ownership of my home directory was off. I did a chown -R for the directory I was using for my project making myself the owner of my own directory and now everything works as normal.
I also had same issue, seems installed version has different user level so I followed their doc and below one work for me:
python3 -m virtualenv --help
To create new environment:
python3 -m virtualenv my_env
I also faced the same issue but after removing virtualenv which was installed with pip3, I could get rid of this error. Uninstall virtualenv with below command (don't forget to use sudo)
sudo pip3 uninstall virtualenv
After this, virtualenv command works totally fine.
It means that there are two virtualenv in your system.
One is "pip install" by sudo or root, the other may be installed by apt(if you are using ubuntu os)
Just uninstall one of them and the error should be fixed.
I fixed this error by removing all virtualenv and virtualenvwrapper related packages on system and reinstall the virtualenv and virtualenvwrapper with pip with below command(as i use ubuntu, so below only show apt)
remove all packages shown in below result
apt list --installed | grep virtualenvwrapper
apt list --installed | grep virtualenvwrapper
install virtualenv virtualenvwrapper with pip
pip install virtualenvwrapper virtualenvwrapper
set ~/.zshrc
export WORKON_HOME=$HOME/.virtualenvs
export PROJECT_HOME=$HOME/amd
export VIRTUALENVWRAPPER_SCRIPT=/home/robot/.local/bin/virtualenvwrapper.sh
export VIRTUALENVWRAPPER_PYTHON=$(which python3)
source /home/robot/.local/bin/virtualenvwrapper.sh
When we use pip3 or python3 to install virtualenv then I got that error too. I had to run each time to create virtualenv (my_env is virtual environment name)
python3 -m virtualenv my_env
But if I install it using
sudo apt install virtualenv
Then virtualenv command works fine.
virtualenv my_env
I want to create a venv having python3.8 as python3
On Ubuntu 18.04
I did:
> sudo apt install python3.8 python3.8-venv
Now, when I try:
> python3.8 -m venv env
The virtual environment was not created successfully because ensurepip is not
available. On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.
apt-get install python3-venv
You may need to use sudo with that command. After installing the python3-venv
package, recreate your virtual environment.
Failing command: ['/home/pushp/vizio-backend/env/bin/python3.8', '-Im', 'ensurepip', '--upgrade', '--default-pip']
My application depends on python3.8. What am I missing here?
Resolved, what I did? :
apt install python3.8 python3.8-venv python3-venv
Dont know how but installing both the venv packages python3.8-venv python3-venv resolved it from me. Now when I do:
python3.8 -m venv env
source env/bin/activate
python3 --version
> Python 3.8.0
first:
sudo pip3 install virtualenv
then cd to the directory where you want your virtual environment to be:
virtualenv "name of env" for ex: sudo virtualenv myProject-env
then to activate:
sudo source myProject-env/bin/activate
to make sure that it is work:
sudo which python
Installing python3-distutils also works around the problem.
You might miss the virtual environment installation in your machine.
You can install virtualenv using the following command,
sudo apt-get install python3.8-venv python3-venv
or
python3 -m pip install virtualenv
Referring this document from digitalOcean i got the same error but here in this linein this image change python3.6 to python3.8 then it will work fine.
change python3.6 -m venv my_env to python3.8 -m venv my_env
I have installed virtualenv and virtualenvwrapper on Ubuntu 16.04
I have created one enviroment named env1
$ sudo apt-get install python-pip
$ pip install virtualenv
$ pip install --upgrade pip
$ pip install virtualenvwrapper
$ export WORKON_HOME=~/Envs
$ mkdir -p $WORKON_HOME
$ source /usr/local/bin/virtualenvwrapper.sh
$ mkvirtualenv env1
Once in (env1) I have installed several packages
(env1) $ pip install numpy
(env1) $ pip install scipy
(env1) $ pip install matplotlib
(env1) $ apt-get install python-tk
I have also installed opencv3 (I am not copying how because is too long)
I am using env1 for a specific project.
Now I want to start another project using the same packages, but I also want to add other packages.
I have created env2, and I was wondering if it is possible to copy env1 to env2 without the need to re-install everything again from scratch.
Your best option is to do this:
virtualenv-1:
pip freeze > requirements.txt
virtualenv-2:
pip install -r requirements.txt
Assuming they are both the on the same system and use the same Python, it is somewhat possible to just copy the site-packages:
cp -Rp /environments/virtualenv-1/lib/python2.7/site-packages \
/environments/virtualenv-2/lib/python2.7/site-packages
This won't necessarily work though:
some packages will install dependencies and other things into /bin/ or elsewhere. most don't, but many do.
if the python versions for the virtualenvs differ -- even on a minor version -- that can break libraries that use c extensions.
So your best bet is to pip freeze and reinstall from that file.
pip install virtualenvwrapper and use the cpvirtualenv command
cpvirtualenv ENVNAME [TARGETENVNAME]
http://virtualenvwrapper.readthedocs.io/en/latest/command_ref.html#cpvirtualenv
Remember to heed the warning
Copying virtual environments is not well supported. Each virtualenv has
path information hard-coded into it, and there may be cases where the copy
code does not know to update a particular file. Use with caution.
I am trying to create another virtual environment (I already installed one using the typical instructions found here: http://docs.python-guide.org/en/latest/dev/virtualenvs/) so I run:
$ virtualenv experimental
-> The program 'virtualenv' is currently not installed. You can install it by typing: sudo apt install virtualenv
I checked to see if perhaps the program needed to be updated:
$ pip install virtualenv --upgrade
-> Requirement already up-to-date: virtualenv in /home/uniside/.local/lib/python2.7/site-packages
Any ideas about what is going on here?
Use sudo. Currently it's being install in your local directory.
sudo pip install virtualenv
The answer by #khrm didn't worked for me.
I was able to do this with :
sudo apt install virtualenv
I had problems activating my virtualenv projects with Ubuntu's system version, so I just use pip's virtualenv. Works with python2 as well:
$ pip3 install virtualenv
Just call virutalenv via python3 -m:
$ python3 -m virtualenv --help
Usage: virtualenv.py [OPTIONS] DEST_DIR
I have python virtualenv and trying to install nodeenv it throws
"no python virtualenv is available"
inside my activated python virtual env with . bin/activate
I run the following commands
pip install nodeenv
nodeenv -p
And it throws the error... I'm currently trying to install less with django-compressor
This also happened to me, it's because nodeenv is not installed in your virtual environment. The following solved it for me:
sudo pip uninstall nodeenv
# Source your virtual environment.
source /path/to/virtualenv
pip install nodeenv
nodeenv -p
This happened to me on Mac OSX Yosemite.
I had installed nodeenv as a user. The solution was to install it as root:
pip uninstall nodeenv
sudo pip install nodeenv
# Source the virtual environment or use workon for virtualenvwrapper
workon <virtualenv name>
nodeenv -p