Zope defines a large number of attributes that are used by Zope itself. ZopeTime is a function that returns a date-time object giving the current time. Python 1.4 users must use the ni module to enable packages. The C programming language. All Zope objects are either true or false.
Numeric values are true if they are non-zero and false if they are zero.
Objects that are sequences of objects, like search results, are true if the sequences are non-empty and false otherwise. Most other objects are true. For example, to get the mean salary in a collection of employees, each with the attribute salary, mean-salary would be used. A header line is a line that begins with a header name, followed by a colon, a space, and a value. Header lines may have continuation lines that begin with one or more spaces or tabs.