Glasnost Help and Documentation
Developers
Templates
TAL and METAL
TAL
TAL Statements: condition
TAL Statements: condition
tal:condition="expression"
An element which contains a condition statement is included in the template only if the condition is met.
Example
<p tal:condition="not userToken">You are not logged in.</p> <p tal:condition="userToken">You are logged in.</p>
Only one of these paragraphs is displayed, depending on whether the userToken variable is defined or not.