Latest recipes tagged "options"

Setting Namespaces (Python)

2012-07-05T02:39:42-07:00

Python recipe 578195 by Stephen Chappell (helpers, library, options, utility). Revision 2.

Provides a simple way to deal with program variable versioning.

This module defines two classes to store application settings so that multiple file versions can coexist with each other. Loading and saving is designed to preserve all data among the different versions. Errors are generated to protect the data when type or value violations occur.

Settings Organizer (Python)

2012-07-04T22:16:36-07:00

Python recipe 578173 by Stephen Chappell (helpers, library, options, utility). Revision 3.

Provide an easy method to manage program options among multiple versions.

This module contains two classes used to store application settings in such a way that multiple file versions can possibly coexist with each other. Loading and saving settings is designed to preserve as much data between versions. An error is generated on loading if saving would lead to any data being lost.

Teach the hashbang header new tricks using a dual mode shell/python script (Python)

2011-08-21T07:27:05-07:00

Python recipe 577851 by Oren Tirosh (hashbang, interpreter, options, python, sh, shell).

This dual-mode script is both a Posix shell script and a python script. The shell part looks like a triple-quoted string to the Python interpreter. The shell does not reach anything after the exec statement.

edit dictionary values (possibly restrained) with Tkinter (Python)

2011-03-15T21:37:54-07:00

Python recipe 577611 by s_h_a_i_o (edit, gui, in, options).

The behaviour of applications sometimes depends on various parameters that can be chosen by the user through some GUI. Quite often, these parameters need take value in a predefined set. Parameters include for instance:

The number of replications for a simulator.
Dates of beginning/end of sample for time series access/plot.
Log writing

This recipe assumes that

Such parameters are stored in a dictionary. Values in the dictionnary are used as initial values for the parameters.
Values are "singleton", i.e non iterable (although they may be strings).
When a value is a list instance, its content represent the set of possible values The recipe offers a simple way to edit the values in a Tkinter Frame, by adding proper widget to it (constrained value are menubutton while unconstrained values are edit widgets).

This is done by the function apply(frame,dict,position), which adds to the Tkinter frame the necessary widgets to edit the dictionary dict. Widgets are placed using grid (hence the frame needs use grid() too) and span on two columns. topleft position (x,y) in grid is specified using position= (x,y,0,0)