The configuration strings

Many Pyrame module use a configuration string called conf_string. It allows to pass initialization parameters for a module in a single string with optional and named parameters. The format is:


parameter_list is of the form param1=value1,param2=value2,param3=value3,etc.

There is no notion of order for the parameters, which are always named, and any of them can be optional, as enforced by the receiving module.

Values cannot contain commas nor equal signs. The only exception is when a value is also a conf_string. For example:


This conf_string is destined to the GPIB module. It specifies a destination address (3), the underlying bus (TCP) and an adapter address (5). The latter is an optional parameter that otherwise defaults to value 0. The bus parameter is itself also a conf_string for the TCP module, containing the parameters host and port.

Pyrame provides a Python module (conf_strings) to parse and stringify conf_strings. See API below.

conf_strings API

class conf_strings.parse(conf_string)[source]

The constructor takes a conf_string and parses it into the properties: “name” and “params”. The former is a string with the name of the module receiving the conf_string. The latter is a dictionary with each of the parameters and its values.

The conf_string is of the form::
parameter_list is of the form::
Values are either strings or conf_string’s. For example::

Take a conf_string of class conf_strings.parse and convert to string