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--- python_devnotes [2017/02/16 02:41] – created avon
+++ python_devnotes [2017/12/05 13:01] (current) – avon
@@ Line 1: / Line 1: @@
 ====== Python Implementation Notes ======
-This section documents all notes from the WHATSNEW.TXT file that relates to the implementation of Python in Mystic BBS. The ability to incorporate and use Python code with Mystic BBS began with the arrival of Mystic 1.12 Alpha 1
+This section documents notes that relate to the implementation of Python in Mystic BBS. As new functions or additional changes are made, you will see them noted below.
+The ability to incorporate Python code with Mystic BBS began with the arrival of Mystic 1.12 Alpha 1
-   + PYTHON is here!  New menu command 'GY' will execute a Python 2.7 syntax
-   script.  By default Mystic looks in the script directory for .MPY files,
+  + PYTHON is here!  New menu command 'GY' will execute a Python 2.7 syntax
-   using the same logic as MPX.  If you supply a file with no extention,
+    script.  By default Mystic looks in the script directory for .MPY files,
-   Mystic will add .mpy onto it.  If you do not supply a path, then Mystic
+    using the same logic as MPX.  If you supply a file with no extention,
-   will look in the current theme's script directory, and then the default
+    Mystic will add .mpy onto it.  If you do not supply a path, then Mystic
-   script directory if fallback is enabled.
+    will look in the current theme's script directory, and then the default
+    script directory if fallback is enabled.
       Example:
@@ Line 15: / Line 17: @@
          Command: GY
             Data: testpython
       The above executes testpython.mpy from the Scripts directory
@@ Line 22: / Line 24: @@
          Command: GY
             Data: c:\mystic\derp\herpderp
       The above executes herderp.mpy from the c:\mystic\derp directory, or
       if it is not found and fallback is enabled for the current theme, Mystic
       will look in the default scripts directory.
+  + Moved the Python intialization code to only execute the first time a
+    script is ran, so that if Python is incorrectly installed it will not
+    prevent Mystic from loading with an error.
+    If you get a "Import error: no module named site" when you DO try to
+    execute a Python script, its because you have Python on your system but
+    it is not completely installed.  You'll need to set your environment
+    variables.  For example if you have Python installed in C:\Python27:
+      SET PYTHONHOME=C:\PYTHON27
+      SET PYTHONPATH=C:\PYTHON27\LIB
+      SET PATH=%PYTHONHOME%;%PATH%
+  + Prompts beginning with a # will now execute a Python script similar to
+    MPL and display files:
+       @myansi     <- Shows myansi from your theme's text dir
+       !mympl      <- Execute mympl.mpx from theme's script dir
+       #mypython   <- Execute mypython.mpy from theme's script dir
+    In the small case that you ever need to start a prompt with one of
+    these characters, you can prefix it with the "dummy" MCI code <pipe>XX
+  + Added "getuser" and "onekey" functions into Python and updated the
+    testpython.mpy in the default install.  This will continue to be updated
+    as new functions and features are added and I need to test them.
+  + Added a keypressed function to Python engine
+  + Mystic now prints a message if Python is executed when it is not detected
+    on the system.
+  + Mystic now prints a message if Python fails to initialize when executing
+    Python.
+  + Python scripts can now be executed from the command line, just like MPL
+    scripts.  The format is the same except -Y is used, so for example:
+      mystic -uSysop -ppassword -ytestpython
+  + Mystic now logs whenever a Python script is executed.
+  + New Python function "getuserid(ID)" returns a user dictionary of the user
+   associated with ID.  If no user is found it will return None:
+     import mystic_bbs as bbs;
+     user = bbs.getuserid(1)
+     if not user is None:
+       bbs.writeln(user["handle"]);
+  + New Python function "getmbase(num)" returns a Message Base dictionary of
+   the record physically located at (num).  This example will print all of
+   the message bases out:
+     import mystic_bbs as bbs;
+     count = 0;
+     while not bbs.shutdown():
+       mbase = bbs.getmbase(count);
+       if mbase is None:
+         break;
+       bbs.writeln(mbase["name"]);
+       count = count + 1;
+     bbs.writeln("List complete. |PA");
+  + New Python function "getmbaseid(ID)" returns a Message Base dictionary of
+   the Message Base with ID of (ID).
+  + New Python functions for reading Message Bases:
+     msg_open, msg_seek, msg_found, msg_next, msg_prev, msg_gethdr,
+     msg_gettxt, msg_close
+    Rather than try to document them all here there is a "msgread.mpy"
+    in the default Mystic installation as an example of how to use these
+    functions. This example implements a very basic message reader using the
+    user's current message base. Check out the 'related links' section on this
+    Wiki page to see an example of this script.
+=== Related Links ===
+  * [[python_examples|Mystic BBS Python Examples]]