Questions tagged [virtualenv]
virtualenv is a tool that creates a sandboxed and isolated environment where Python packages can be installed without interfering with other packages on the same machine.
152
questions
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How to set up and use a virtual python environment in Ubuntu?
Python virtual environments are used to create isolated python environments to avoid dependency and version conflicts, and also indirectly take care of permission issues. But what is the easiest way ...
67
votes
8
answers
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Error: Command '['/path/to/env/bin/python3.7', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1
I just installed python3.7 on my 18.04LTS via the deadsnakes ppa:
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt install python3.7 -y
Now I want to create a virtual environment with python3.7 -m ...
46
votes
3
answers
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Error installing scrapy in virtualenv using pip
pip install scrapy
Downloading/unpacking scrapy
Downloading Scrapy-0.24.2-py2-none-any.whl (502kB): 502kB downloaded
Downloading/unpacking pyOpenSSL (from scrapy)
Downloading pyOpenSSL-0.14.tar.gz ...
25
votes
5
answers
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Python virtualenvwrapper problem running the initialization hooks
On a fresh install of 16.04, I am trying to install virtualenvwrapper by following this great answer by Gerhard Burger.
after configuring the .bashrc, whenever opening the terminal displays
bash: /...
18
votes
2
answers
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Create a copy of virtualenv locally without pip install
Sometime there is a need to create a copy of exiting virtualenv to test extra features of our project.
In such a case we need to create a copy of the existing environment and add few more ...
16
votes
1
answer
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Configure error: could not find the zlib library
I am trying to install lalsuite on ubuntu according to the instructions here:
https://pycbc.org/pycbc/latest/html/install_lalsuite.html
Everything went smoothly until I ran
./00boot
./configure --...
15
votes
2
answers
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pyvenv vs venv vs python-virtualenv vs virtualenv and python 3
malikarumi@Tetouan2:~$ pip install virtualenv
Collecting virtualenv
Downloading virtualenv-12.0.7-py2.py3-none-any.whl (1.8MB)
100% |################################| 1.8MB 330kB/s
...
13
votes
2
answers
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Unable to create venv with a different Python verison
I'm installed python 3.6 on my Ubuntu 17.04. Now, I'm trying to create virtual environment with command:
python3.6 -m venv env
but I'm getting the following message:
The virtual environment was not ...
12
votes
1
answer
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Cannot activate virtual environment with a shell script [duplicate]
I read similar questions and have tried their suggestions but I still cannot activate my virtual environment. The hierarchy of directories is:
myproject
-- virtualenv
-- startvenv.sh
startvenv.sh is:...
11
votes
4
answers
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How do I install Pygame in virtualenv?
In installed python-virtualenv, because this question said I should use virtualenv to install pygame. However, I'm not really sure how that's accomplished.
What I did (following these instructions):
...
10
votes
3
answers
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Virtualenv installs envs into local/bin instead of bin
Problem:
The bin directory of my virtual environment produced with virtualenvwrapper (which uses virtualenv under the hood) is located in the subfolderlocal instead which leads to breakage across the ...
9
votes
2
answers
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How to activate a virtual environment in Ubuntu?
I installed virtualenv and I created a virtual environment inside my directory. Everything is OK, but I can't activate it. When I run:
source /bin/activate
it says:
already: command not found
...
8
votes
3
answers
41k
views
Installing pygame with pip
I'm trying to install pygame using pip in a virtualenv. I'm following this tutorial on using Kivy. However, running pip install pygame returns
Downloading/unpacking pygame
Downloading pygame-1.9....
8
votes
2
answers
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Clean uninstall of virtualenv and virtualenvwrapper
Since I do not use them at this time I tried to uninstall virtualenv and virtualenvwrapper via the Ubuntu Software Center. Now whenever I open a console I get the following error message:
Traceback (...
7
votes
1
answer
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pkg-resources==0.0.0 in pip freeze bug
I am using Ubuntu 16.10, and I only installed virtualenv using aptitude. After creating a new environment, and listed installed packages using pip freeze I am always getting the output of
pkg-...
7
votes
1
answer
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pyvenv-3.4 disappeared in Ubuntu 14.04.3?
This is what I was doing to create a venv in Python 3.4 on Ubuntu 14.04.3 LTS until last week:
» pyvenv-3.4 --without-pip venv
I was doing that because of this. But since yesterday:
» pyvenv-3.4 --...
7
votes
2
answers
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run virtualenv in new terminal tab automatically
I am using virtualenv, so to start I have to say
source some/long/path/bin/activate
Sometimes (very often, in fact) I want to create another tab in terminal, to edit another script, or to run ...
7
votes
1
answer
22k
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Trying to create a python virtual environment but getting OSError
I have installed python3.3, pip-1.5, ditribute-0.7.3, virtualenv-1.11.
I am giving the below command to create virtual environment
virtualenv --no-site-packages test
I am getting the following ...
7
votes
2
answers
8k
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What is the correct location for a maintained virtualenv service?
I will be installing and maintaining a Python 2.7-based server application on Ubuntu server (12.04). The model of maintenance will be to create a virtualenv and install application standard libraries (...
7
votes
1
answer
9k
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Virtualenv permission denied
After a lot of struggle with virtualenv/virtualenvwrapper I decided to remove all virtualenvs and re-install the packages.
root> su myuser
myuser> sudo pip install virtualenv
myuser> sudo ...
6
votes
1
answer
20k
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"OSError: [Errno 13] Permission denied" error
I am trying to create a virtualenv environment but I am encountered by this error:
user@mylaptop:~$ virtualenv -p ~/Public/Programming/project1/
Running virtualenv with interpreter /home/user/Public/...
6
votes
1
answer
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Run python script in virtual environment on startup
I would like to start a python script from a virtual environment on startup. I have searched the whole forum and other sources but have not been able to make it work.
The script should run at the ...
6
votes
2
answers
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ModuleNotFoundError: No module named 'pip._vendor.six'
I'm new to Ubuntu (20.04.2.0 LTS) and trying to get Python3.9.6 and Pip to work with Virtualenv.
I hope some of you experienced Ubuntu users can help me :)
I have no problem using default Python (3.8....
5
votes
2
answers
7k
views
Why psycopg2 is not able to install in a virtual environment?
Just installed ubuntu20.04.
Installed python3.10 by
sudo apt install python3.10
Then created virtualenv
pip install virtualenv
virtualenv -p python3.10 venv
Now I'm trying to install requirement for ...
5
votes
2
answers
21k
views
How to create python2.7 virtualenv on Ubuntu 20.04
I want to run an application that uses python2.7 version, but by default python2.7 is not installed. When I tried to use:
$ virtualenv -p python2 flaskold
It returned:
RuntimeError: failed to find ...
5
votes
1
answer
13k
views
Python3.8 venv without activate script
When I try to create a virtual environment, the created folder does not have the venv/bin/activate script.
I tried to install and reinstall venv using sudo apt install python3-venv, but it always ...
5
votes
1
answer
3k
views
Installing Latex on Virtualenv
I'm trying to install latex on virtualenv as a part of my project being uploaded to heroku. I used pip install texlive-latex-extra also easy_install texlive-latex-extra for packages texlive-base,...
5
votes
2
answers
23k
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Install Python 3.7 packages in Ubuntu 20.04
I recently upgraded to 20.04 from 19.10. Now i face issues since i need to use a virtual environment with Python 3.7 and cant seem to install the packages:
- Python3.7-venv
- Python 3.7-dev
Seems ...
5
votes
1
answer
2k
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Set virtualenv for file in Visual Studio Code python
I'm playing with Visual Studio Code on Ubuntu. One big problem is I can't figure out how to attach a virtualenv to a file. So, I open the file. On the lower left corner, I see the default path to the ...
5
votes
1
answer
290
views
Is there an equivalent of virtual env but for the whole of ubuntu?
Python has a wonderful tool called a virtual environment, which lets you effectively hermetically seal various python libraries (which may conflict with each other!) from each other. Is there an ...
5
votes
1
answer
10k
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Make virtualenv and activate it with shell script
I want to make shell script that makes virtualenv, activates it, install some libraries and run python script with it.
But I have problem that I can't activate virtualenv in shell script unless i do "...
5
votes
1
answer
5k
views
Problems installing Numpy in Virtualenv
I have numpy installed globally (I think via Django) but I'm trying to install it within a virtualenv. When I run
pip install numpy
(within my virtualenv), it gets stuck at Running setup.py install ...
4
votes
1
answer
16k
views
How to create virtualenv in Ubuntu 18.04
I have installed virtualenv:
pip3 install --user virtualenv
Then I was trying to create an environment for my folder with the next command:
folder_name$ python -m venv ll_env
But instead of the ...
4
votes
2
answers
970
views
How can I get diffuse to play well with a Python virtualenv?
Diffuse is installed on my workstation and plays well with Mercurial so I often use it for diff'ing. However, I also am using a Python virtualenv to use some different modules in a more controlled ...
4
votes
1
answer
9k
views
Open a new terminal and source scripts
I want to write a script to activate a virtual environment and run my server for Django project in a new terminal. My startProject.sh is:
#!/bin/bash
source virtualenv/bin/activate
python manage.py ...
4
votes
3
answers
24k
views
What can I do when a Python virtual environment doesn't find modules?
On Ubuntu 16.04 I created a virtual environment called venv and inside the venv/lib/python2.7/site-packages I have nltk and nltk-3.2.2.dist-info as normal.
However, when I activate the virtual ...
4
votes
1
answer
7k
views
How to ensure matplotlib in a Python 3 virtualenv uses the TkAgg backend?
I am using Ubuntu 16.04 with Python 3. Using APT to install python3-matplotlib and then printing the matplotlib backend gives TKAgg, which is expected because Ubuntu has 16.04 has python3-tk installed....
4
votes
1
answer
971
views
Development environment similar to virtualenv for C++
I am looking for a tool that lets me switch between different versions of the packages/builds I use for development purpose something similar to virtualenv for python. I am using install prefix at the ...
4
votes
1
answer
278
views
How do I set PYTHONASYNCIODEBUG value in pipenv python?
I am running python 3.6 in a pipenv shell. I want to set the value of this python environment variable PYTHONASYNCIODEBUG to 1 without affecting my user environment variables that are outside of the ...
3
votes
3
answers
8k
views
Edit ZSH theme for virtualenv name
I use zsh theme intheloops. The theme looks like this when no virtual env. is active
-- an empty line --
[sourabh@skynet] ~/Code/django_apps/cope (master) ⚡
❯
and when an env. is active,
(env ...
3
votes
2
answers
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views
How to install pyzmq for iPython Notebook in a Python 3 virtual environment?
I wanted to use iPython Notebook in Python 3 on Ubuntu 14.04. Because I have both Python 2.7 and Python 3.4 installed on my system--and for other implementation-specific reasons--I decided to use a ...
3
votes
1
answer
177
views
For every Framework new Python Env?
I'm very new to Linux so it could be that I think more in a Windows way.
I want to develop something in Python, especially Django and Discord Bot.
I have a folder PythonEnvironment where I set up a ...
3
votes
1
answer
1k
views
Create a shortcut to a virtual enviroment
I have installed Spyder Python IDE in a virtual environment.
For this purpose I used the following command:
python3 -m venv spyder-env
source spyder-env/bin/activate
I have to switch to the virtual ...
3
votes
1
answer
2k
views
pip install virtualenv, error on ubuntu 15.04
How to fix this issue? and how to install pip and virtualenv on ubuntu 15.04
pip install virtualenv
Traceback (most recent call last):
File "/usr/bin/pip", line 9, in <module>
...
3
votes
1
answer
14k
views
Why is "virtualenv venv" not working on Ubuntu 18.04? [duplicate]
I'm having trouble creating a virtual environment for python on my Ubuntu desktop. I have installed virtualenv by: sudo pip3 install virtualenv and verifying it gives the following output:
$ pip3 show ...
3
votes
1
answer
5k
views
How do I create a Python virtual environment in the Ubuntu on Windows App using 'venv' rather than 'virtualenv'?
I am using the Ubuntu on Windows App running on Windows Subsystem for Linux. So an initial question is if Python virtual environments is supported. Given my as yet limited understanding of Python ...
2
votes
3
answers
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How to install python-guestfs and libguestfs-tools in python virtual environment?
Can any one help me out to install python-guestfs and libguestfs-tools in python virtual environment?
I tried to install those packages with the help of pip install but it fails to install because ...
2
votes
1
answer
1k
views
14.04 what is the difference between /usr/bin/python3 /usr/bin/python3.4
In /usr/bin there is a python3 and python3.4. What is the difference? If I am setting up virtualenv for 3.4 do I need to point it to the 3.4 file, or does the python3 act like a meta package?
2
votes
2
answers
3k
views
Launching script containing virtual env through desktop icon
I want to launch Spyder with tensorflow environment activated directly through a desktop icon. For this purpose, I created a desktop icon launching a virtualenv and then my application. Many posts ...
2
votes
3
answers
5k
views
Python 3.4 on Ubuntu 16.04
I have just installed Python 3.4 on Ubuntu 16.04 using the ./configure, make, make install process. I am trying to install Flask, and am having issues using pip in virtualenv created with 3.4. Using ...