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jinja2-main / examples / bench.py

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"""\
    This benchmark compares some python templating engines with Jinja 2 so
    that we get a picture of how fast Jinja 2 is for a semi real world
    template.  If a template engine is not installed the test is skipped.\
"""
import sys
import cgi
from timeit import Timer
from jinja2 import Environment as JinjaEnvironment

context = {
    'page_title': 'mitsuhiko\'s benchmark',
    'table': [dict(a=1,b=2,c=3,d=4,e=5,f=6,g=7,h=8,i=9,j=10) for x in range(1000)]
}

jinja_template = JinjaEnvironment(
    line_statement_prefix='%',
    variable_start_string="${",
    variable_end_string="}"
).from_string("""\
<!doctype html>
<html>
  <head>
    <title>${page_title|e}</title>
  </head>
  <body>
    <div class="header">
      <h1>${page_title|e}</h1>
    </div>
    <ul class="navigation">
    % for href, caption in [
        ('index.html', 'Index'),
        ('downloads.html', 'Downloads'),
        ('products.html', 'Products')
      ]
      <li><a href="${href|e}">${caption|e}</a></li>
    % endfor
    </ul>
    <div class="table">
      <table>
      % for row in table
        <tr>
        % for cell in row
          <td>${cell}</td>
        % endfor
        </tr>
      % endfor
      </table>
    </div>
  </body>
</html>\
""")

def test_jinja():
    jinja_template.render(context)

try:
    from tornado.template import Template
except ImportError:
    test_tornado = None
else:
    tornado_template = Template("""\
<!doctype html>
<html>
  <head>
    <title>{{ page_title }}</title>
  </head>
  <body>
    <div class="header">
      <h1>{{ page_title }}</h1>
    </div>
    <ul class="navigation">
    {% for href, caption in [ \
        ('index.html', 'Index'), \
        ('downloads.html', 'Downloads'), \
        ('products.html', 'Products') \
      ] %}
      <li><a href="{{ href }}">{{ caption }}</a></li>
    {% end %}
    </ul>
    <div class="table">
      <table>
      {% for row in table %}
        <tr>
        {% for cell in row %}
          <td>{{ cell }}</td>
        {% end %}
        </tr>
      {% end %}
      </table>
    </div>
  </body>
</html>\
""")

    def test_tornado():
        tornado_template.generate(**context)

try:
    from django.conf import settings
    settings.configure()
    from django.template import Template as DjangoTemplate, Context as DjangoContext
except ImportError:
    test_django = None
else:
    django_template = DjangoTemplate("""\
<!doctype html>
<html>
  <head>
    <title>{{ page_title }}</title>
  </head>
  <body>
    <div class="header">
      <h1>{{ page_title }}</h1>
    </div>
    <ul class="navigation">
    {% for href, caption in navigation %}
      <li><a href="{{ href }}">{{ caption }}</a></li>
    {% endfor %}
    </ul>
    <div class="table">
      <table>
      {% for row in table %}
        <tr>
        {% for cell in row %}
          <td>{{ cell }}</td>
        {% endfor %}
        </tr>
      {% endfor %}
      </table>
    </div>
  </body>
</html>\
""")

    def test_django():
        c = DjangoContext(context)
        c['navigation'] = [('index.html', 'Index'), ('downloads.html', 'Downloads'),
                           ('products.html', 'Products')]
        django_template.render(c)

try:
    from mako.template import Template as MakoTemplate
except ImportError:
    test_mako = None
else:
    mako_template = MakoTemplate("""\
<!doctype html>
<html>
  <head>
    <title>${page_title|h}</title>
  </head>
  <body>
    <div class="header">
      <h1>${page_title|h}</h1>
    </div>
    <ul class="navigation">
    % for href, caption in [('index.html', 'Index'), ('downloads.html', 'Downloads'), ('products.html', 'Products')]:
      <li><a href="${href|h}">${caption|h}</a></li>
    % endfor
    </ul>
    <div class="table">
      <table>
      % for row in table:
        <tr>
        % for cell in row:
          <td>${cell}</td>
        % endfor
        </tr>
      % endfor
      </table>
    </div>
  </body>
</html>\
""")

    def test_mako():
        mako_template.render(**context)

try:
    from genshi.template import MarkupTemplate as GenshiTemplate
except ImportError:
    test_genshi = None
else:
    genshi_template = GenshiTemplate("""\
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:py="http://genshi.edgewall.org/">
  <head>
    <title>${page_title}</title>
  </head>
  <body>
    <div class="header">
      <h1>${page_title}</h1>
    </div>
    <ul class="navigation">
      <li py:for="href, caption in [
        ('index.html', 'Index'),
        ('downloads.html', 'Downloads'),
        ('products.html', 'Products')]"><a href="${href}">${caption}</a></li>
    </ul>
    <div class="table">
      <table>
        <tr py:for="row in table">
          <td py:for="cell in row">${cell}</td>
        </tr>
      </table>
    </div>
  </body>
</html>\
""")

    def test_genshi():
        genshi_template.generate(**context).render('html', strip_whitespace=False)

try:
    from Cheetah.Template import Template as CheetahTemplate
except ImportError:
    test_cheetah = None
else:
    cheetah_template = CheetahTemplate("""\
#import cgi
<!doctype html>
<html>
  <head>
    <title>$cgi.escape($page_title)</title>
  </head>
  <body>
    <div class="header">
      <h1>$cgi.escape($page_title)</h1>
    </div>
    <ul class="navigation">
    #for $href, $caption in [('index.html', 'Index'), ('downloads.html', 'Downloads'), ('products.html', 'Products')]:
      <li><a href="$cgi.escape($href)">$cgi.escape($caption)</a></li>
    #end for
    </ul>
    <div class="table">
      <table>
      #for $row in $table:
        <tr>
        #for $cell in $row:
          <td>$cell</td>
        #end for
        </tr>
      #end for
      </table>
    </div>
  </body>
</html>\
""", searchList=[dict(context)])

    def test_cheetah():
        unicode(cheetah_template)

try:
    import tenjin
except ImportError:
    test_tenjin = None
else:
    tenjin_template = tenjin.Template()
    tenjin_template.convert("""\
<!doctype html>
<html>
  <head>
    <title>${page_title}</title>
  </head>
  <body>
    <div class="header">
      <h1>${page_title}</h1>
    </div>
    <ul class="navigation">
<?py for href, caption in [('index.html', 'Index'), ('downloads.html', 'Downloads'), ('products.html', 'Products')]: ?>
      <li><a href="${href}">${caption}</a></li>
<?py #end ?>
    </ul>
    <div class="table">
      <table>
<?py for row in table: ?>
        <tr>
<?py     for cell in row: ?>
          <td>#{cell}</td>
<?py #end ?>
        </tr>
<?py #end ?>
      </table>
    </div>
  </body>
</html>\
""")

    def test_tenjin():
        from tenjin.helpers import escape, to_str
        tenjin_template.render(context, locals())

try:
    from spitfire.compiler import util as SpitfireTemplate
    from spitfire.compiler.analyzer import o2_options as spitfire_optimizer
except ImportError:
    test_spitfire = None
else:
    spitfire_template = SpitfireTemplate.load_template("""\
<!doctype html>
<html>
  <head>
    <title>$cgi.escape($page_title)</title>
  </head>
  <body>
    <div class="header">
      <h1>$cgi.escape($page_title)</h1>
    </div>
    <ul class="navigation">
    #for $href, $caption in [('index.html', 'Index'), ('downloads.html', 'Downloads'), ('products.html', 'Products')]
      <li><a href="$cgi.escape($href)">$cgi.escape($caption)</a></li>
    #end for
    </ul>
    <div class="table">
      <table>
      #for $row in $table
        <tr>
        #for $cell in $row
          <td>$cell</td>
        #end for
        </tr>
      #end for
      </table>
    </div>
  </body>
</html>\
""", 'spitfire_tmpl', spitfire_optimizer, {'enable_filters': False})
    spitfire_context = dict(context, **{'cgi': cgi})

    def test_spitfire():
        spitfire_template(search_list=[spitfire_context]).main()


try:
    from chameleon.zpt.template import PageTemplate
except ImportError:
    test_chameleon = None
else:
    chameleon_template = PageTemplate("""\
<html xmlns:tal="http://xml.zope.org/namespaces/tal">
  <head>
    <title tal:content="page_title">Page Title</title>
  </head>
  <body>
    <div class="header">
      <h1 tal:content="page_title">Page Title</h1>
    </div>
    <ul class="navigation">
    <li tal:repeat="item sections"><a tal:attributes="href item[0]" tal:content="item[1]">caption</a></li>
    </ul>
    <div class="table">
      <table>
        <tr tal:repeat="row table">
        <td tal:repeat="cell row" tal:content="row[cell]">cell</td>
        </tr>
      </table>
    </div>
  </body>
</html>\
""")
    chameleon_context = dict(context)
    chameleon_context['sections'] = [
        ('index.html', 'Index'),
        ('downloads.html', 'Downloads'),
        ('products.html', 'Products')
    ]
    def test_chameleon():
        chameleon_template.render(**chameleon_context)

try:
    from chameleon.zpt.template import PageTemplate
    from chameleon.genshi import language
except ImportError:
    test_chameleon_genshi = None
else:
    chameleon_genshi_template = PageTemplate("""\
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:py="http://genshi.edgewall.org/">
  <head>
    <title>${page_title}</title>
  </head>
  <body>
    <div class="header">
      <h1>${page_title}</h1>
    </div>
    <ul class="navigation">
    <li py:for="info in sections"><a href="${info[0]}">${info[1]}</a></li>
    </ul>
    <div class="table">
      <table>
        <tr py:for="row in table">
          <td py:for="cell in row">${row[cell]}</td>
        </tr>
      </table>
    </div>
  </body>
</html>\
""", parser=language.Parser())
    chameleon_genshi_context = dict(context)
    chameleon_genshi_context['sections'] = [
        ('index.html', 'Index'),
        ('downloads.html', 'Downloads'),
        ('products.html', 'Products')
    ]
    def test_chameleon_genshi():
        chameleon_genshi_template.render(**chameleon_genshi_context)


sys.stdout.write('\r' + '\n'.join((
    '=' * 80,
    'Template Engine BigTable Benchmark'.center(80),
    '=' * 80,
    __doc__,
    '-' * 80
)) + '\n')


for test in 'jinja', 'mako', 'tornado', 'tenjin', 'spitfire', 'django', 'genshi', 'cheetah', 'chameleon', 'chameleon_genshi':
    if locals()['test_' + test] is None:
        sys.stdout.write('    %-20s*not installed*\n' % test)
        continue
    t = Timer(setup='from __main__ import test_%s as bench' % test,
              stmt='bench()')
    sys.stdout.write(' >> %-20s<running>' % test)
    sys.stdout.flush()
    sys.stdout.write('\r    %-20s%.4f seconds\n' % (test, t.timeit(number=50) / 50))
sys.stdout.write('-' * 80 + '\n')
sys.stdout.write('''\
    WARNING: The results of this benchmark are useless to compare the
    performance of template engines and should not be taken seriously in any
    way.  It's testing the performance of simple loops and has no real-world
    usefulnes.  It only used to check if changes on the Jinja code affect
    performance in a good or bad way and how it roughly compares to others.
''' + '=' * 80 + '\n')