How to import a globally installed package to virtualenv folder
Question:
So I have a virtualenv folder called venv for my python project.
I can run:
venv/bin/pip install -r requirements.txt
Which installs all requirements I need for the project except one, M2Crypto. The only way to install it is through apt-get:
apt-get install python-m2crypto
How can I then add this package installed through apt to venv folder?
Answers:
venv/bin/pip install -I M2Crypto
The -I forces it to also be installed into the virtualenv, even if it’s already globally installed.
--system-site-packages
gives access to the global site-packages modules to the virtual environment.
you could do:
$ sudo apt-get install python-m2crypto
$ virtualenv env --system-site-packages
… and you would then have access to m2crypto (along with all other system-wide installed packages) inside your virtualenv.
What I did after all:
cp -R /usr/lib/python2.7/dist-packages/M2Crypto /home/richard/hello-project/venv/lib/python2.7/site-packages/
cp -R /usr/lib/python2.7/dist-packages/OpenSSL /home/richard/hello-project/venv/lib/python2.7/site-packages/
toggleglobalsitepackages will toggle access to the system-wide site-packages.
Note: You need to pip install virtualenvwrapper to get this command; the vanilla virtualenv doesn’t include it. With virtualenvwrapper you also get the very useful mkvirtualenv and rmvirtualenv commands, among others.
Real simple solution.
In the virtual environment directory, edit the file pyvenv.cfg. Set the parameter include-system-site-packages = true, and save the file.
The globally installed modules will appear the next time you activate (source venv/bin/activate) your environment.
It can be verified via pip list.
Enjoy!
The only way to transfer packages locally from one environment or global to the other virtual environment is
Copying the the "Lib"folder or the package folder with all its contents from the environment to the other environment you want the package to work
If you don’t know it’s location search for it within the environment folder using file explorer
Lib folder contains all the installed packages of the environment
So I have a virtualenv folder called venv for my python project.
I can run:
venv/bin/pip install -r requirements.txt
Which installs all requirements I need for the project except one, M2Crypto. The only way to install it is through apt-get:
apt-get install python-m2crypto
How can I then add this package installed through apt to venv folder?
venv/bin/pip install -I M2Crypto
The -I forces it to also be installed into the virtualenv, even if it’s already globally installed.
--system-site-packages
gives access to the global site-packages modules to the virtual environment.
you could do:
$ sudo apt-get install python-m2crypto
$ virtualenv env --system-site-packages
… and you would then have access to m2crypto (along with all other system-wide installed packages) inside your virtualenv.
What I did after all:
cp -R /usr/lib/python2.7/dist-packages/M2Crypto /home/richard/hello-project/venv/lib/python2.7/site-packages/
cp -R /usr/lib/python2.7/dist-packages/OpenSSL /home/richard/hello-project/venv/lib/python2.7/site-packages/
toggleglobalsitepackages will toggle access to the system-wide site-packages.
Note: You need to pip install virtualenvwrapper to get this command; the vanilla virtualenv doesn’t include it. With virtualenvwrapper you also get the very useful mkvirtualenv and rmvirtualenv commands, among others.
Real simple solution.
In the virtual environment directory, edit the file pyvenv.cfg. Set the parameter include-system-site-packages = true, and save the file.
The globally installed modules will appear the next time you activate (source venv/bin/activate) your environment.
It can be verified via pip list.
Enjoy!
The only way to transfer packages locally from one environment or global to the other virtual environment is
Copying the the "Lib"folder or the package folder with all its contents from the environment to the other environment you want the package to work
If you don’t know it’s location search for it within the environment folder using file explorer
Lib folder contains all the installed packages of the environment