Update new Django and Python 2.7.* with virtualenv on Dreamhost (with passenger)
Question:
Dreamhost is a great host for small project. And it’s also Django friendly hosting. Everything good except python and Django version is a little bit out of date. Well it’s a whole day of work to figure out how to update Python 2.7.3, Django 1.4 on dreamhost and I really want to share with whoever finding it
Answers:
I currently have private server, a shell account and a bit of luck. So here is what I do:
-
SSH to your host to upgrade python
cd ~
mkdir tmp
cd tmp
wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz
tar zxvf Python-2.7.3.tgz
cd Python-2.7.3
./configure --enable-shared --prefix=$HOME/Python27 --enable-unicode=ucs4
make
make install
-
Configure system to use our new Python. Open ~/.bashrc and add the following line
export PATH="$HOME/Python27/bin:$PATH"
export LD_LIBRARY_PATH=$HOME/Python27/lib
#save it and run
source ~/.bashrc
you can now check your python version with which python
-
Install easy_install
, pip
cd ~/tmp
wget http://peak.telecommunity.com/dist/ez_setup.py
python ez_setup.py
easy_install pip
# Or even shorter
wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py
-
Install virtualenv
pip install virtualenv
virtualenv $HOME/<site>/env
#Switch to virtualenv
source $HOME/<site>/env/bin/activate
you can also add env path to bashrc
export PATH="$HOME/<site>/env/bin/:$PATH"
source ~/.bashrc
-
Install django and everything else
pip install django
pip install ....
pip install ....
pip install ....
-
Create project
cd $HOME/<site>/
python $HOME/<site>/env/bin/django-admin.py startproject project
-
Create passenger_wsgi.py
in HOME/<site>/
with following content
import sys, os
cwd = os.getcwd()
sys.path.append(cwd)
sys.path.append(cwd + '/project') #You must add your project here or 500
#Switch to new python
#You may try to replace $HOME with your actual path
if sys.version < "2.7.3": os.execl("$HOME/<site>/env/bin/python",
"python2.7.3", *sys.argv)
sys.path.insert(0,'$HOME/<site>/env/bin')
sys.path.insert(0,'$HOME/<site>/env/lib/python2.7/site-packages/django')
sys.path.insert(0,'$HOME/<site>/env/lib/python2.7/site-packages')
os.environ['DJANGO_SETTINGS_MODULE'] = "project.settings"
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()
or this way
import sys, os
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
sys.path.append(os.path.join(BASE_DIR)) #You must add your project here or 500
#Switch to new python
#You may try to replace $HOME with your actual path
PYTHON_PATH = os.path.join(BASE_DIR, 'env', 'bin', 'python')
if sys.executable != PYTHON_PATH:
os.execl(PYTHON_PATH, "python2.7.12", *sys.argv)
If you are using django 1.7, replace the last two line with
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
- Enjoy 😀
New version of python on Dreamhost will no longer return sys.executable
so you this is my version of passenger_wsgi
import sys, os
VIRTUAL_ENV_PYTHON = 'venv-python' # Python > 2.7.6 dreamhost not return sys.executable
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
def is_venv_python():
if len(sys.argv) > 0:
last_item = sys.argv[len(sys.argv)-1]
if last_item == VIRTUAL_ENV_PYTHON:
return True
return False
sys.path.append(os.path.join(BASE_DIR)) #You must add your project here or 500
#Switch to new python
PYTHON_PATH = os.path.join(BASE_DIR, 'env', 'bin', 'python')
if not is_venv_python():
os.execl(PYTHON_PATH, "python2.7.12", *sys.argv + [VIRTUAL_ENV_PYTHON])
sys.path.insert(0, os.path.join(BASE_DIR, 'env', 'bin'))
sys.path.insert(0, os.path.join(
BASE_DIR, 'env', 'lib', 'python2.7', 'site-packages'
))
Currently Dreamhost updated servers to Ubuntu 12.04, and i’ve got an error:
Import Error: <path-to-python>/_io.so undefined symbol: PyUnicodeUCS2_Decode
after compiling custom python and running “python ez_setup.py”
The solution was to compile python with –enable-unicode=ucs4 at step 1
./configure --enable-shared --prefix=$HOME/Python27 --enable-unicode=ucs4
Dreamhost is a great host for small project. And it’s also Django friendly hosting. Everything good except python and Django version is a little bit out of date. Well it’s a whole day of work to figure out how to update Python 2.7.3, Django 1.4 on dreamhost and I really want to share with whoever finding it
I currently have private server, a shell account and a bit of luck. So here is what I do:
-
SSH to your host to upgrade python
cd ~ mkdir tmp cd tmp wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz tar zxvf Python-2.7.3.tgz cd Python-2.7.3 ./configure --enable-shared --prefix=$HOME/Python27 --enable-unicode=ucs4 make make install
-
Configure system to use our new Python. Open ~/.bashrc and add the following line
export PATH="$HOME/Python27/bin:$PATH" export LD_LIBRARY_PATH=$HOME/Python27/lib #save it and run source ~/.bashrc
you can now check your python version with
which python
-
Install
easy_install
,pip
cd ~/tmp wget http://peak.telecommunity.com/dist/ez_setup.py python ez_setup.py easy_install pip # Or even shorter wget https://bootstrap.pypa.io/get-pip.py python get-pip.py
-
Install
virtualenv
pip install virtualenv virtualenv $HOME/<site>/env #Switch to virtualenv source $HOME/<site>/env/bin/activate
you can also add env path to
bashrc
export PATH="$HOME/<site>/env/bin/:$PATH" source ~/.bashrc
-
Install django and everything else
pip install django pip install .... pip install .... pip install ....
-
Create project
cd $HOME/<site>/ python $HOME/<site>/env/bin/django-admin.py startproject project
-
Create
passenger_wsgi.py
inHOME/<site>/
with following contentimport sys, os cwd = os.getcwd() sys.path.append(cwd) sys.path.append(cwd + '/project') #You must add your project here or 500 #Switch to new python #You may try to replace $HOME with your actual path if sys.version < "2.7.3": os.execl("$HOME/<site>/env/bin/python", "python2.7.3", *sys.argv) sys.path.insert(0,'$HOME/<site>/env/bin') sys.path.insert(0,'$HOME/<site>/env/lib/python2.7/site-packages/django') sys.path.insert(0,'$HOME/<site>/env/lib/python2.7/site-packages') os.environ['DJANGO_SETTINGS_MODULE'] = "project.settings" import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler()
or this way
import sys, os
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
sys.path.append(os.path.join(BASE_DIR)) #You must add your project here or 500
#Switch to new python
#You may try to replace $HOME with your actual path
PYTHON_PATH = os.path.join(BASE_DIR, 'env', 'bin', 'python')
if sys.executable != PYTHON_PATH:
os.execl(PYTHON_PATH, "python2.7.12", *sys.argv)
If you are using django 1.7, replace the last two line with
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
- Enjoy 😀
New version of python on Dreamhost will no longer return sys.executable
so you this is my version of passenger_wsgi
import sys, os
VIRTUAL_ENV_PYTHON = 'venv-python' # Python > 2.7.6 dreamhost not return sys.executable
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
def is_venv_python():
if len(sys.argv) > 0:
last_item = sys.argv[len(sys.argv)-1]
if last_item == VIRTUAL_ENV_PYTHON:
return True
return False
sys.path.append(os.path.join(BASE_DIR)) #You must add your project here or 500
#Switch to new python
PYTHON_PATH = os.path.join(BASE_DIR, 'env', 'bin', 'python')
if not is_venv_python():
os.execl(PYTHON_PATH, "python2.7.12", *sys.argv + [VIRTUAL_ENV_PYTHON])
sys.path.insert(0, os.path.join(BASE_DIR, 'env', 'bin'))
sys.path.insert(0, os.path.join(
BASE_DIR, 'env', 'lib', 'python2.7', 'site-packages'
))
Currently Dreamhost updated servers to Ubuntu 12.04, and i’ve got an error:
Import Error: <path-to-python>/_io.so undefined symbol: PyUnicodeUCS2_Decode
after compiling custom python and running “python ez_setup.py”
The solution was to compile python with –enable-unicode=ucs4 at step 1
./configure --enable-shared --prefix=$HOME/Python27 --enable-unicode=ucs4