From e272303dc14d4717cddf6bd9f8e61decdc519ab8 Mon Sep 17 00:00:00 2001 From: Jack Jansen Date: Tue, 22 Oct 1996 15:29:15 +0000 Subject: [PATCH] Added a note about incorrect "PythonCore not found" message Added a few comments on preference file handling. --- Mac/Demo/using.html | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/Mac/Demo/using.html b/Mac/Demo/using.html index 273ede2a16b..fb1eb18ce22 100644 --- a/Mac/Demo/using.html +++ b/Mac/Demo/using.html @@ -38,7 +38,7 @@ interpreter in interactive mode by double-clicking its icon:

This should give you a text window with an informative version string and a prompt, something like the following: 

-Python 1.3.3 (Apr  7 1996)  [CW PPC w/GUSI]
+Python 1.4 (Oct  27 1996)  [CW PPC w/GUSI]
 Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
 >>>
@@ -310,7 +310,8 @@ Note that while an applet behaves as a fullblown Macintosh application it is not self-sufficient, so distributing it to a machine without an installed Python interpreter will not work: it needs the shared python execution engine PythonCore, and probably various modules -from the Lib and PlugIns folders.

+from the Lib and PlugIns folders. Distributing it to a machine that does +have a Python system (of the same release and architecture) will work.

Customizing applets

@@ -354,6 +355,12 @@ server.

Troubleshooting

+A rather baffling error message can be "PythonCore not found" when you +start the interpreter and you are sure that PythonCore is available. The +message should actually say "Not enough memory in the system heap to +load PythonCore". +Blame Apple for the confusing message.

+ Python is a rather safe language, and hence it should be difficult to crash the interpreter of the system with a Python script. There is an exception to this rule, though: the modules that interface to the @@ -374,6 +381,14 @@ will appear to be correct in the editor but cause strange errors when imported. BBEdit has a popup menu which allows you to inspect (and set) the end-of-line convention used in a file.

+Python attempts to keep its preferences file up-to-date even when you +move the Python folder around, etc. If this fails the effect will be +that Python cannot start or, worse, that it does work but it cannot find +any standard modules. In this case, start Python examine sys.path. +If it is incorrect remove the Python preferences file from the system +folder and start the interpreter while the interpreter sits in the main +Python folder. This will regenerate the preferences file.

+

Where to go from here

The next section to check out is the annotated sample programs.