Jinja2

Jinja2 is a modern and designer friendly templating language for Python, modelled after Django’s templates.

Slackware 14 installation

wget https://pypi.python.org/packages/source/J/Jinja2/Jinja2-2.7.1.tar.gz
cp Jinja2-2.7.1.tar.gz /tmp
tar xvzf Jinja2-2.7.1.tar.gz
cd Jinja2-2.7.1
python setup.py build
python setup.py install

Check installation

   1 python
   2 Python 2.7.3 (default, Jul  3 2012, 21:16:07) 
   3 [GCC 4.7.1] on linux2
   4 Type "help", "copyright", "credits" or "license" for more information.
   5 >>> import jinja2
   6 >>> jinja2.__version__
   7 '2.7.1'
   8 >>> quit()

Jinja2 test

Check Python/CherryPy

mkdir -p /var/www/htdocs/jinja2test/templates
cd /var/www/htdocs/jinja2test

File /var/www/htdocs/jinja2test/jinja2test.wsgi

   1 import sys
   2 sys.stdout = sys.stderr
   3 import cherrypy
   4 
   5 from jinja2 import Environment, FileSystemLoader
   6 env = Environment(loader=FileSystemLoader('/var/www/htdocs/jinja2test/templates'))
   7 
   8 cherrypy.config.update({'environment': 'embedded'})
   9 
  10 class Jinja2Test(object):
  11     @cherrypy.expose
  12     def index(self):
  13         return "Hello World Jinja2Test!!!!"
  14     @cherrypy.expose
  15     def add(self,param1,param2):
  16        return str( int(param1)+int(param2) )
  17     @cherrypy.expose
  18     def testpage(self):
  19         t = env.get_template('test.html')
  20         navItems=[]
  21         for i in range(1,10):
  22                 navItems.append( {'href':'hrefx','caption':'cap %d'%(i) } )
  23         return t.render( titlex="Titleeeee" , navigation=navItems )
  24 
  25 jjtest = Jinja2Test()
  26 application = cherrypy.Application(jjtest, script_name=None, config=None)

File /var/www/htdocs/jinja2test/templates/test.html

   1 <html>
   2     <head></head>
   3     <body>
   4         <ul id="navigation">
   5         {% if navigation|count > 0 %}
   6         {% for item in navigation %}
   7         <li>
   8           <a href="{{item.href}}">{{item.caption}}</a> 
   9         </li>
  10         {% endfor %}
  11         {% endif %}
  12         </ul>
  13         <h1>My webpage {{titlex}} </h1>
  14     </body>
  15 </html>

Add virtual host in /etc/httpd/vhosts.conf

<VirtualHost *:80>
    ServerName localhostjinja2test
    DocumentRoot "/var/www/htdocs/jinja2test"
    WSGIScriptAlias / /var/www/htdocs/jinja2test/jinja2test.wsgi
    <Directory "/var/www/htdocs/jinja2test">
      Require local
    </Directory>
</VirtualHost>

Add host to /etc/hosts

127.0.0.1 localhostjinja2test

Restart apache

/etc/rc.d/rc.httpd restart

Open URLs:

-  ⇤ ← Revision 10 as of 2019-08-05 10:11:22 → 
  Size: 2673
  Editor: localhost
  Comment:
+   ← Revision 16 as of 2025-05-31 14:58:45 → ⇥
  Size: 2884
  Editor: vitor
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
+<<TableOfContents(2)>>
-Line 4:
+Line 5:
+ * https://palletsprojects.com/p/jinja/
 * https://jinja.palletsprojects.com/en/2.10.x/
-Line 14:
+Line 17:
-{{{
+{{{#!highlight python
-Line 31:
+Line 34:
-File /var/www/htdocs/jinja2test/jinja2test.wsgi
+File '''/var/www/htdocs/jinja2test/jinja2test.wsgi'''
-Line 61:
+Line 64:
-File /var/www/htdocs/jinja2test/templates/test.html
+File '''/var/www/htdocs/jinja2test/templates/test.html'''
-Line 67:
+Line 70:
+        {% if navigation|count > 0 %}
-Line 72:
+Line 76:
+        {% endif %}
-Line 74:
+Line 79:
-        </body>
+    </body>
-Line 78:
+Line 83:
-Add virtual host in /etc/httpd/vhosts.conf
+Add virtual host in '''/etc/httpd/vhosts.conf'''
-Line 90:
+Line 95:
-Add host to /etc/hosts
+Add host to '''/etc/hosts'''