# 1.8 Using Help

The Boa Constructor environment provides links to different help files from your environment. These are Boa Constructor Application Help, wxPython Help and Python Language Help. Custom help can be added by defining them in Explorer.(msw|gtk).cfg as new entries in the customhelp dictionary under [preferences].

The help window provides standard HTML based navigation and a search facility.

If the help does not display correctly, you may need to configure your environment.

- The Python or wxPython help may fail to display if the path to the installed Python directory is incorrect. The path to the Python help is in the platform preferences file. This is PrefMSW.py for Windows and PrefGTK.py for UNIX.
- The wxPython help may fail to display if it is not in HTML form. Your wxPython distribution may store their help in Compiled HTML (chm) rather than standard HTML (html/htm). The Boa Contructor tool cannot display compiled HTML. Instead, you should download the HTML version of the documentation from the wxPython site.

Another good reference for understanding the wxPython functionality is the wxPython Demonstration. This should be in the directory demo, under your wxPython directory. You can locate the demo.py file using the 'Explorer' on the Editor window. Expand the sys.path option. The wxPython directory will be either under the <Python root> or under the site-packages directory. The demo.py is in the demo directory which is a sub-directory of wxPython.