I created a virtualenv around my project, but when I try to activate it I cannot.
It might just be syntax or folder location, but I am stumped right now.
You can see below, I create the virtualenv and call it venv. Everything looks good, then I try to activate it by running source venv/bin/activate
I'm thinking it might just have to do with my system path, but not sure what to point it to (I do know how to edit the path). I'm on python 7 / windows os, virtual env 2.2.x
Processing dependencies for virtualenv
Finished processing dependencies for virtualenv
c:\testdjangoproj\mysite>virtualenv --no-site-packages venv
The --no-site-packages flag is deprecated; it is now the default behavior.
Using real prefix 'C:\\Program Files (x86)\\Python'
New python executable in venv\Scripts\python.exe
File venv\Lib\distutils\distutils.cfg exists with different content; not overwri
ting
Installing setuptools.................done.
Installing pip...................done.
c:\testdjangoproj\mysite>source venv/bin/activate
'source' is not recognized as an internal or external command,
operable program or batch file.
c:\testdjangoproj\mysite>source venv/bin/activate
'source' is not recognized as an internal or external command,
operable program or batch file.
c:\testdjangoproj\mysite>source mysite/bin/activate
'source' is not recognized as an internal or external command,
operable program or batch file.
c:\testdjangoproj\mysite>
source is a shell command designed for users running on Linux (or any Posix, but whatever, not Windows).
On Windows, virtualenv creates a .bat/.ps1 file, so you should run venv\Scripts\activate instead (per the virtualenv documentation on the activate script).
Just run activate, without an extension, so the right file will get used regardless of whether you're using cmd.exe or PowerShell.
I had the same problem. I was using Python 2, Windows 10 and Git Bash. Turns out in Git Bash you need to use:
source venv/Scripts/activate
I was also facing the same issue in my Windows 10 machine.
What steps i tried were:
Go to andconda terminal
Step 1
pip3 install -U pip virtualenv
Step 2
virtualenv --system-site-packages -p python ./venv
or
virtualenv --system-site-packages -p python3 ./venv
Step 3
.\venv\activate
You can check it via spider tool in anaconda by typing import tensorflow as tf
For activation you can go to the venv your virtualenv directory
by cd venv.
Then on Windows, type dir (on unix, type ls).
You will get 5 folders include, Lib, Scripts, tcl and 60
Now type .\Scripts\activate to activate your virtualenv venv.
Your prompt will change to indicate that you are now operating within the virtual environment. It will look something like this (venv)user#host:~/venv$.
And your venv is activated now.
source command is officially for Unix operating systems family and you can't use it on windows basically. instead, you can use venv\Scripts\activate command to activate your virtual environment.
Ensure venv is there and just follow the commands below. It works in Windows 10.
Go to the path where you want your virtual enviroments to reside:
> cd <my_venv_path>
Create the virtual environment named "env":
> python -m venv env
Add the path to the git ignore file (optional):
> echo env/ >> .gitignore
Activate the virtual env:
> .\env\Scripts\activate
For windows, type "C:\Users\Sid\venv\FirstProject\Scripts\activate" in the terminal without quotes. Simply give the location of your Scripts folder in your project. So, the command will be location_of_the_Scripts_Folder\activate.
if you already cd your project type only in windows 10
Scripts/activate
That works for me:)
Tried several different commands until I came across:
source venv/Scripts/activate
This did it for me. Setup: Win 10, python 3.7, gitbash. Gitbash might be the culprit for not playing nice with other activate commands.
A small reminder, but I had my slashes the wrong way on Win10 cmd. According to python documentation the activate command is: C:\> <venv>\Scripts\activate.bat
When you're browsing directories it's e.g. cd .env/Scripts
So to create my venv I used python -m venv --copies .env and to activate .env\Scripts\activate.bat
Open your powershell as admin
Enter "Set-ExecutionPolicy RemoteSigned -Force
Run "gpedit.msc" and go to >Administrative Templates>Windows Components>Windows Powershell
Look for "Activate scripts execution" and set it on "Activated"
Set execution directive to "Allow All"
Apply
Refresh your env
I have a hell of a time using virtualenv on windows with git bash, I usually end up specifying the python binary explicitly.
If my environment is in say .env I'll call python via ./.env/Scripts/python.exe …, or in a shebang line #!./.env/Scripts/python.exe;
Both assuming your working directory contains your virtualenv (.env).
You can run the source command on cygwin terminal
If you’re using Windows, use the command "venv\Scripts\activate" (without the word source) to activate the virtual environment. If you’re using PowerShell, you might need to capitalize Activate.
open the folder with any gitbash console.
for example using visualCode and Gitbash console program:
1)Install Gitbash for windows
2) using VisualCode IDE, right click over the project open in terminal console option
3) on window console in Visualcode, looking for a Select->default shell and change it for Gitbash
4)now your project is open with bash console and right path, put source ./Scripts/activate
btw : . with blank space = source
For windows Microsoft Tech Support it might be a problem with Execution Policy Settings. To fix it, you should try executing
Set-ExecutionPolicy Unrestricted -Scope Process
Finally Worked on Windows 10 by using:
activate myvenv
where myvenv is the name the virtual environment I want to activate.
So basically, the command is:
activate <<your_venv_name>>
All the best!
Some people are having trouble with vscode i assume as all the above methods dont work.
Its simply because by default vscode uses powershell not cmd...
click on the little arrow beside it and select cmd and run the command.
if .\venv\Scripts\activate does not work neither and you find this error
\Activate.ps1 cannot be loaded because running scripts is disabled on this system
you can simple type set-executionpolicy remotesigned in powershell and the error must be gone.
powershell should run as administrator
If you see the 5 folders (Include,Lib,Scripts,tcl,pip-selfcheck) after using the virtualenv yourenvname command, change directory to Scripts folder in the cmd itself and simply use "activate" command.
If wants to open virtual environment on Windows then just remember one thing on giving path use backwards slash not forward.
This is right:
D:\xampp\htdocs\htmldemo\python-virtual-environment>env\Scripts\activate
This is wrong:
D:\xampp\htdocs\htmldemo\python-virtual-environment>env/Scripts/activate
The steps for activating virtualenv using Python3 on windows are:
python3 -m venv env
.\env\bin\activate
Use These it worked for meenv\Scripts\activate
For those of you crazy enough to have a custom DOS prompt, venv activation may fail, depending on your %PROMPT% environment variable content.
Say you have a DOS prompt defined as follows:
set PROMPT=$_$E[1;30;40m[$E[0;36;40m%computername% | %userdomain%\%username%$E[1;30;40m] $E[0;33;40m$M$_$E[35;40m$d$s$t$h$h$h$h$h$h$_$E[1;33;40m$p$_$E[1;30;40m$g $E[0;37;40m
(btw, it shows as follows, with some fancy colors:
[W10-MY_COMPUTER | W10-MY_COMPUTER\JOHNDOE]
15/09/2022 20:31
F:\
> echo "Hello World"
Hello World
[W10-MY_COMPUTER | W10-MY_COMPUTER\JOHNDOE]
15/09/2022 20:31
F:\
>
)
Then if you try to activate a venv :
.\venv\Scripts\activate.bat
it may fail with a rather unclear error that states:
Path not found
without further indications.
The trick is that activate.bat(/deactivate.bat) scripts try to save(/restore) the %PROMPT% variable with this syntax:
...
set _OLD_VIRTUAL_PROMPT=%PROMPT%
...
set PROMPT=(venv) %PROMPT%
...
It can be fixed with this syntax:
...
set "_OLD_VIRTUAL_PROMPT=%PROMPT%"
...
set "PROMPT=(venv) %PROMPT%"
...
now it shows:
[W10-MY_COMPUTER | W10-MY_COMPUTER\JOHNDOE]
15/09/2022 20:31
F:\
> venv\Scripts\activate.bat
(venv)
[W10-MY_COMPUTER | W10-MY_COMPUTER\JOHNDOE]
15/09/2022 20:31
F:\
>
Instead of using:
source ./venv/Scripts/activate
Use only:
./venv/Scripts/activate
Your Script will be activated.
If you are using windows OS then in Gitbash terminal use the following command $source venv/Scripts/activate. This will help you to enter the virtual environment.
Open your project using VS code editor .
Change the default shell in vs code terminal to git bash.
now your project is open with bash console and right path, put
"source venv\Scripts\activate" in Windows
Navigate to your virtualenv folder eg ..\project1_env>
Then type
source scripts/activate
eg ..\project1_env>source scripts/activate
The best way is, using backward slahes and using .bat at the end of activate
C:\Users>your_env_name\Scripts\activate.bat
:: location of bat file
::C:\Users\gaojia\Dropbox\Projects\free_return\venv\Scripts\activate.bat
:: location of the cmd bat file and the ipython notebook
::C:\Users\gaojia\Dropbox\Projects\free_return\scripts\pre_analysis
source ..\..\venv\Scripts\activate
PAUSE
jupyter nbconvert --to html --execute consumer_response_DID.ipynb
PAUSE
Above is my bat file through which I try to execute an ipython notebook. But the cmd window gives me nothing and shut down instantly, any suggestion why would this happen?
I'm running Anaconda 3 with Python 3.6 on MacOS 10.12.
I created an environment using python 2.7 and opencv using conda create --name my-env python=2.7 anaconda(e.g. here). I activated the environment using source activate my-env and installed opencv. Both creation and activation seem to have worked: the anaconda3/envs/my-env folder exists and my terminal says (my-env) bob:~ alice'.
But how do I get Anaconda to use the new environment?
I tried:
starting the default Anaconda-Navigator.app, this just uses the default python path
changing the path in my ~/.bash-profile, but Anaconda still tries the default python path
starting the Anaconda-Navigator.app located in the my-env folder, fails with the OS error message "cannot be opened"
starting from terminal exits with the error message: FSPathMakeRef(~/anaconda3/envs/my-env/Anaconda-Navigator) failed with error -43.
Because I read somewhere that Anaconda 3 might not play nicely with Python 2.7, I tried the same workflow again, but creating an environment using python 3.5.4. Again to no avail.
What am I missing?
there a two possibilities to run a program in an env once the env has been created with conda:
Through default anaconda-navigator (the GUI of anaconda), there should be a menu on the left, with the following options: Home, Environments, Projects(beta),...
Simply klick on environments and choose/create a new one(see screenshot)
The "Applications on base(root)" can also be changed. If it does not display these options I recommend you to update conda.
Via terminal: activate the env as you mentioned earlier and then simply run the program you want, for example spyder, it should then use the right py version.
My default version of anaconda, the "root(base)" runs with python 2, therefore I added a few lines in my .bash_profile file to easily run python/spyder in either a default env or a specific one. maybe you can use something similar.
NONE='\033[00m'
YELLOW='\033[01;33m'
spy() {
if [[ "${1}" == "" ]]
then
ENV="py36env"
else
ENV=${1}
fi
source activate ${ENV} #enter env
echo -e "${YELLOW}CURRENT ENVIRONMENT: ${ENV} ${NONE}"
spyder #open spyder
echo -e "${YELLOW}EXIT ${ENV} ${NONE}"
source deactivate #exit env when spyder is quitted
}
You can now run spyder in the env "XXX" by entering "spy XXX" in the terminal. Or the default one by typing in "spy".
I have a command that only runs correctly inside a Python virtual environment I've configured (as intended). I know that I can run the command as
$ cmd args
once I've activated the venv. But (due to the constraints of the tool I'm using) I need to activate run (and deactivate?) in one line: something equivalent to running
$ activate_somehow cmd args
outside the command line.
Is there a way to do this?
You can generally run something in a virtual environment simply by using a fully qualified path to the script. For example, if I have:
virtualenv .venv
Then I can install something into that virtual environment without activating it by running:
.venv/bin/pip install foo
This should be true for anything installed using standard Python mechanisms.
After looking into the generated bin/activate script, it seems like the only thing relevant to python is the VIRTUAL_ENV variable, so this should be enough to get going:
$ env VIRTUAL_ENV=path/to/venv python ...
Note that the python executable in the bin directory of target environment is just a symlink to globally installed interpreter, which does nothing other that setting process executable path. Assuming the program does not make use of it, utilizing the main binary itself seems harmless. In case you have installed a package which in turn installs some executables, just specify the absolute path:
$ env VIRTUAL_ENV=path/to/venv path/to/venv/bin/executable
You can create a simple wrapper script which runs activate, executes your command, and then deactivates simply by exiting the script in which your environment was activated.
#!/bin/sh
. ${venv-./env}/bin/activate
"$#"
This lets you set the environment variable venv to the path of the environment you want to use, or else uses ./env if it is unset. Perhaps a better design would be to pass the env as the first parameter:
#!/bin/sh
. "$1"/bin/activate
shift
"$#"
Either way, save this somewhere in your PATH ($HOME/bin is a common choice for your private scripts) and give it executable permission.
I found venv-run which should do what you ask:
pip install venv-run
venv-run cmd args
Larsk's answer is probably cleaner, but this is another possible way.
Assuming you use UNIX and your user is user and you have a virtual environment in home (any) directory, ie /home/user/venv, you can make a script like:
#!/bin/sh
export VIRTUAL_ENV=/home/user/venv
export PATH=/home/user/venv/bin:$PATH
python3 "$#"
We can make this script executable (eg call it venv-python3 and do chmod +x venv-python3) and call it as such, or put it some place discoverable in PATH - let's say alongside python. Assuming you have sudo rights:
sudo cp venv-python3 /usr/bin/venv-python3
Then we can call that instead of the python callable. Since the variables are set within the script, explicit call on deactivate is not necessary at exit.
Example:
user#machine ~ % venv-python3 --help
This works for at least for virtualenv version 20.0.17 but if adopted, you should be keeping an eye on what variables bin/activate sets, if this ever changes.
Yes, you can execute the python file using a virtual environment in a single line of command on windows.
venv\Scripts\activate&&python fall_detector.py
I installed pgadmin4 in my home directory in a virtual environment called "pgadmin4".
I use fish shell and it runs perfectly fine with:
~/pgadmin4/bin/python3 ~/pgadmin4/lib/python3.10/site-packages/pgadmin4/pgAdmin4.py
Just in case this helps somebody.
I am finding that when I create a Conda environment source activate environment and then deactivate that environment source deactivate environment, my native bash commands no longer work.
I've attached an image of ls working before enabling an environment and then not afterwards. I assume that this is something because of my PATH - but I am a novice and am not sure specifically what to fix. I am doing this in Git Bash on Windows. Anaconda 3 and Python 3.5.
Please work ls, come on
Most probably your conda environment is replacing the parameters and environment variables defined in your local bash profile. I am sure if you open a new environment(bash session), you will find everything is working fine.
I would suggest you add a command to reload bash profile after deactivating the environment, so that the profile variable values will again be applied. It should solve the problem.
There are a few bugs in the activate/deactivate scripts, which I've fixed in versions I call activate.cygwin and deactivate.cygwin.
activate.cygwin: fixes 2 places where the conda command returns a string with a return "\r" at the end that confounds processing.
deactivate.cygwin: fixes conversion of /cygdrive/... to avoid error
CondaValueError: Could not find environment: /cygdrivec:\Users\rjp\Anaconda2\envs...
I've posted the modified scripts to https://bitbucket.org/snippets/plevin/. See instructions at the top of activate.cygwin.
The correct way to deactivate a conda environment is to run conda deactivate, rather than source deactivate environment
Source: https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html?highlight=activate#deactivating-an-environment
I use Git Bash in Windows 10 and encountered the same problem too. The previous answer does not work for me, probably because I don't have any path set in ~/.bash_profile and ~/.bashrc.
I checked my path variable in a fresh git bash, it looks like:
/c/Users/chen_x/bin:/mingw64/bin:/usr/local/bin:/usr/bin:/bin:/mingw64/bin:/usr/bin:/c/Users/chen_x/bin....(more)
After . C:/Users/chen_x/Miniconda3/Scripts/activate C:/Users/chen_x/Miniconda3 and . activate snowflakes, the path becomes:
/C/Users/chen_x/Miniconda3/envs/snowflakes:(blalbla..):C:\Users\chen_x\Miniconda3\Library\bin;C:\Users\chen_x\Miniconda3;....(more)
I assume that git bash does not recognize pathes like C:\program files..., then added the following line to C:/Users/chen_x/Miniconda3/Scripts/activate right after the last EXPORT PATH= command (about line 78):
export PATH="$($_CONDA_PYTHON -c "import re; p=re.sub(r'\\\', r'/', r'$PATH'); p=re.sub('(;|:)([A-Z]):', lambda m: ':/'+m.group(2).lower(), p); print(p)")"
It works.
By the way, I create a ~/condaenv script to start conda environment:
#!/bin/bash
. C:/Users/chen_x/Miniconda3/Scripts/activate C:/Users/chen_x/Miniconda3
It would be convinent to :
. ~/condaenv
. activate snowflakes
I'm new to pycharm, virtualenv, linux and git.
I've recently begun a journey of using djangoto make webapps. Before I used sublime to make scripts however now a more complex project management system such as pycarm was needed. I actually wanted to get a linux VM and go down that road but was advised that windows python IDE such as pycharm would be suitable
I recently learnt the importance of dependencies and how to use virtualenv. However in this tutorial, under the 'How do I use my shiny new virtual environment?' it starts using commands such as:
ls env
and
which python
Neither of which my pycharm console would understand.
I could use a console emulator such cmder to use the commands but then I would remove the convience of using the IDE's integrated one.
Should I upgrade to a linux VM ? Or can I install a package that allows me to use such commands in PyCharm.
As a bonus question, what are the commands in that tutorial ? are they linux commands? when ever i see $ .... is that the linux console ?
You can accomplish this using Vagrant: https://www.vagrantup.com/
You can use Vagrant and VirtualBox to setup a Linux VM (distro of your choice) and then install all of your Python dependencies in the VM. Once you have that setup, you can tell PyCharm to use the Python interpreter in your VM by following these steps:
Open the project settings dialog box in PyCharm.
Expand Project: (your project name) on the left side.
Click on Project Interpreter.
Click on the cog icon on the upper right side of the window and select Add Remote.
Click on the Vagrant radio button.
In the Vagrant Instance Folder box, select the directory your Vagrantfile is located in.
In the Vagrant Host URL box, make sure ssh://vagrant#127.0.0.1:2222 is specified.
Click OK.
Since Vagrant is compatible with Windows this solution should work for you. I have done it successfully using macOS and it works great. Good luck!
You might find this tutorial useful: https://developer.rackspace.com/blog/a-tutorial-on-application-development-using-vagrant-with-the-pycharm-ide/
I got this to work on Windows 10 with Anaconda Prompt. This terminal which comes with Anaconda, creates a "base" environment with a linux-like virtual machine and your Windows file system (C:\\) mounted to /c, and has bash installed with common Unix commands like cd, ls, chmod, echo, cat, ... Running programs from bash with access to environment variables is much nicer than Windows Powershell etc.
Now to get your Terminal in Pycharm to use Anaconda Prompt instead of cmd.exe, I followed this answer. After installing Anaconda and/or Anaconda Prompt, right-click -> Open File Location -> right-click the shortcut -> Properties -> copy file path. Then use your file path instead.
Conda is great for package environment management. Learn more about it here. For Django + Conda specifically, read here. You can also use pip to install from Python package indexes, github repos, and requirements.txt files instead. Unless you know how Anaconda Prompt works, I don't recommend creating your own environments from scratch. What worked for me was:
(base) C:\Users\wassadamo> conda create -n mynewenvironment --copy base
...
(base) C:\Users\wassadamo> conda activate mynewenvironment
(mynewenvironment) C:\Users\wassadamo> ls
folderA folderB file.txt
Works!
Whenever I try running conda deactivate to leave the base environment, my bash commands would stop working. So clone base as above.
Another tip: if you want to run shell scripts from Terminal within PyCharm with Anaconda Prompt this way, then execute them (e.g. "run.sh") on command line with
bash run.sh
I tried putting this on the first line of my run.sh
#!/usr/bin/bash
And running it with
./run.sh
But this had the effect of running it in an external Anaconda Prompt instance (add sleep, or some user input command to force it to wait and see for yourself). Explicitly running my .sh files with bash had the desired effect of running them in the same shell as I started them in PyCharm Terminal configured with Anaconda Prompt.