Enable expression-statement extension that adds the do tag.

Author: yaph

docs/changes.rst

@@ -6,6 +6,7 @@ Changes
 4.0.0 to 4.1.0
 --------------
 
+* Enable expression-statement extension that adds the do tag.
 * Added raw keyword argument to filesource function, which defaults to False.
 * Added keep option for `generate` command, which does not remove an existing deploy directory.
 * Load newer versions of bootstrap, fontawesome and jquery via CDN.

logya/template.py

@@ -53,6 +53,9 @@ def __init__(self, logya_inst):
         # Enable with statement for nested variable scopes.
         self.env.add_extension('jinja2.ext.with_')
 
+        # Enable expression-statement extension that adds the do tag.
+        self.env.add_extension('jinja2.ext.do')
+
         # Trim whitespace around template tags if configured.
         tpl_settings = logya_inst.config.get('template')
         if tpl_settings and tpl_settings.get('trim_whitespace'):