37.1. "ic" — Access to the Mac OS X Internet Config
***************************************************

This module provides access to various internet-related preferences
set through **System Preferences** or the **Finder**.

注解: This module has been removed in Python 3.x.

There is a low-level companion module "icglue" which provides the
basic Internet Config access functionality.  This low-level module is
not documented, but the docstrings of the routines document the
parameters and the routine names are the same as for the Pascal or C
API to Internet Config, so the standard IC programmers’ documentation
can be used if this module is needed.

The "ic" module defines the "error" exception and symbolic names for
all error codes Internet Config can produce; see the source for
details.

exception ic.error

   Exception raised on errors in the "ic" module.

The "ic" module defines the following class and function:

class ic.IC([signature[, ic]])

   Create an Internet Config object. The signature is a 4-character
   creator code of the current application (default "'Pyth'") which
   may influence some of ICs settings. The optional *ic* argument is a
   low-level "icglue.icinstance" created beforehand, this may be
   useful if you want to get preferences from a different config file,
   etc.

ic.launchurl(url[, hint])
ic.parseurl(data[, start[, end[, hint]]])
ic.mapfile(file)
ic.maptypecreator(type, creator[, filename])
ic.settypecreator(file)

   These functions are “shortcuts” to the methods of the same name,
   described below.


37.1.1. IC Objects
==================

"IC" objects have a mapping interface, hence to obtain the mail
address you simply get "ic['MailAddress']". Assignment also works, and
changes the option in the configuration file.

The module knows about various datatypes, and converts the internal IC
representation to a “logical” Python data structure. Running the "ic"
module standalone will run a test program that lists all keys and
values in your IC database, this will have to serve as documentation.

If the module does not know how to represent the data it returns an
instance of the "ICOpaqueData" type, with the raw data in its "data"
attribute. Objects of this type are also acceptable values for
assignment.

Besides the dictionary interface, "IC" objects have the following
methods:

IC.launchurl(url[, hint])

   Parse the given URL, launch the correct application and pass it the
   URL. The optional *hint* can be a scheme name such as "'mailto:'",
   in which case incomplete URLs are completed with this scheme.  If
   *hint* is not provided, incomplete URLs are invalid.

IC.parseurl(data[, start[, end[, hint]]])

   Find a URL somewhere in *data* and return start position, end
   position and the URL. The optional *start* and *end* can be used to
   limit the search, so for instance if a user clicks in a long text
   field you can pass the whole text field and the click-position in
   *start* and this routine will return the whole URL in which the
   user clicked.  As above, *hint* is an optional scheme used to
   complete incomplete URLs.

IC.mapfile(file)

   Return the mapping entry for the given *file*, which can be passed
   as either a filename or an "FSSpec()" result, and which need not
   exist.

   The mapping entry is returned as a tuple "(version, type, creator,
   postcreator, flags, extension, appname, postappname, mimetype,
   entryname)", where *version* is the entry version number, *type* is
   the 4-character filetype, *creator* is the 4-character creator
   type, *postcreator* is the 4-character creator code of an optional
   application to post-process the file after downloading, *flags* are
   various bits specifying whether to transfer in binary or ascii and
   such, *extension* is the filename extension for this file type,
   *appname* is the printable name of the application to which this
   file belongs, *postappname* is the name of the postprocessing
   application, *mimetype* is the MIME type of this file and
   *entryname* is the name of this entry.

IC.maptypecreator(type, creator[, filename])

   Return the mapping entry for files with given 4-character *type*
   and *creator* codes. The optional *filename* may be specified to
   further help finding the correct entry (if the creator code is
   "'????'", for instance).

   The mapping entry is returned in the same format as for *mapfile*.

IC.settypecreator(file)

   Given an existing *file*, specified either as a filename or as an
   "FSSpec()" result, set its creator and type correctly based on its
   extension.  The finder is told about the change, so the finder icon
   will be updated quickly.
