| How to install Python 2.2.1 on your Macintosh |
| --------------------------------------------- |
| |
| This is a MacPython that can run on classic MacOS (from 8.1 |
| onwards) and natively on MacOSX. The installer tries to work out whether you can |
| use the Carbon version or not. For Mac OS X users: this version of Python |
| does not run from the command line, it is a pure "Mac only" app. Use the standard |
| unix Python from the commandline, the two Pythons will be merged in the future. |
| |
| You should definitely read the Relnotes file too, and the section below about |
| toolbox module reorganization. You should also read :Misc:NEWS, which lists |
| the general (non-mac-dependent) new features of this Python release. |
| |
| A special note about the active installer: do not background it, it may hang |
| your machine. This is a general problem with Vise active installers, MindVision |
| are working on it. |
| |
| ------ |
| |
| If this is your first encounter with Python: you definitely need the |
| common user documentation (common to all platforms). You can find this |
| (in various forms) on www.pythonlabs.com, www.python.org and |
| ftp.python.org. Through there, or via |
| http://www.cwi.nl/~jack/macpython.html you can also find the most recent |
| MacPython distribution. |
| |
| Mac-specific documentation is included in this distribution in folder |
| Mac:Demo. The documentation is sparse, but it will have to serve for |
| now. The documentation is in HTML format, start with index.html. |
| |
| This installer installs MacPython for classic PPC MacOS, MacPython for Carbon |
| (OS X, OS 9 or OS 8 with CarbonLib installed) or both, depending on your |
| configuration. By selecting custom install you can bypass these tests and |
| install what you want. |
| |
| If you want 68k support you will have get MacPython 1.5.2. |
| |
| What to install |
| --------------- |
| |
| The optional parts in this distribution are |
| - TK+PIL: Tkinter and support modules, plus Imaging, the Python image |
| manipulation package (allows you to read, write and display images and |
| do lots of operations on them). |
| For Carbon MacPython you only get PIL: there is no Tcl/Tk for Carbon yet. |
| This is the reason Classic MacPython is also installed on MacOSX: it |
| allows you to run Tkinter applications, albeit in the Classic box. |
| - img: another imaging package. Has more file format support and is faster |
| than imaging, but has only limited operations on images. There is a bridge |
| between the packages. |
| - Numeric: the LLNL Numeric Python extension. All sorts of nifty operations |
| on matrices and such. This is the most recent version from the |
| sourceforge archive. |
| Numeric has moved from Extensions to :Lib:site-python, by the way, |
| see the release notes. |
| - Developers kit: all header files and some tools and sample projects |
| to get you started on writing Python extensions if you have CodeWarrior. |
| All these except the DevKit are installed with Easy Install. |
| |
| After the installer finishes it automatically launches the appropriate |
| ConfigurePython applet, to finish configuration of your Python. If you |
| run MacOS9 or later (or 8 with CarbonLib installed) you can switch |
| back and forth between the classic and Carbon versions of Python by |
| running either ConfigurePythonClassic or ConfigurePythonCarbon. |
| |
| Moving your Python installation after installing is generally not a |
| good idea. If you have to do this anyway you should remove your |
| preference file, run ConfigurePython and remove all .pyc |
| files. (there's a script zappyc.py that does the latter). |
| |
| If you don't have enough memory: the sizes choosen are somewhat |
| arbitrary, and they are as high as they are so that test.autotest runs |
| with fewer problems. An average Python program can make do with much |
| less memory. Try lowering the application sizes in the finder "get |
| info" window, and seeing whether the resulting python is still usable. |
| |
| After installing |
| ---------------- |
| |
| It is probably a good idea to run the automatic tests. Start |
| Python and "import test.regrtest ; test.regrtest.main()". |
| |
| test_frozen will fail in MacPython because of different handling on |
| frozen modules. This should not be a problem in normal use. |
| |
| Three tests will fail on MacOS9 with MemoryErrors: |
| test_longexp, test_sha and test_zlib (on MacOSX these should pass). |
| |
| If you increase the PythonInterpreter memory partition size they will |
| pass (but for longexp you have to increase it by an incredible amount, |
| 400MB is rumoured). It will, however, print some messages about |
| optional features not supported. You should not worry about these, |
| they are modules that are supported by Python on other |
| platforms. Also, if you didn't run compileall before autotesting you |
| may run out of memory the first time you run the tests. test_socket |
| may also fail if you have no internet connection. Please also read the |
| Relnotes file for other minor problems with this distribution. |
| |
| Using Python is most easily done from the IDE, which has a builtin |
| editor, debugger and other goodies. The alternative is to use |
| PythonInterpreter, which is the lowlevel interpreter with a |
| console-window only (similar to Unix Python). |
| |
| If your program uses Tkinter you MUST run it under PythonInterpreter, |
| Tkinter and IDE are incompatible and your program will fail in strange |
| ways. |
| |
| OSX Multiple users note |
| ----------------------- |
| |
| Interaction with Mac OS X multiple users has been tested only very lightly. |
| If you install as a privileged user everything installs fine. |
| |
| If you install as a non-privileged user everything should install in your local |
| per-user folders. But: as there is no global PythonCore you can only run applets |
| if they reside in your toplevel Python folder. |
| |
| If you install as a privileged user and then try to run |
| Python as another (non-privileged) user you may encounter a problem with |
| not having a preference file: the symptom is failing to import all sorts |
| of standard modules. If you remove your per-user Python preference files |
| (in ~/Library/Preferences) and then run PythonIntpreter once everything should |
| be fine. |
| |
| Uninstalling |
| ------------ |
| |
| Up to three items are installed in the system folder: the interpreter shared |
| libraries PythonCore and PythonCoreCarbon live in the Extensions |
| folder and the "Python 2.2.1 Preferences" file in the Python subfolder |
| in the Preferences folder. All the rest of Python lives in the folder |
| you installed in. |
| |
| On OSX the libraries are installed in /Library/CFMSupport. The ConfigurePython |
| applets will complain if you have no right to create the libraries there |
| (you need Admin privileges). This has one consequence: you will not be able to |
| run applets unless they reside in the MacPython folder (such as the IDE or |
| EditPythonPrefs). If you try to run an applet stored elsewhere you will |
| get a "Cannot locate PythonCore" error message. |
| |
| Things to see |
| ------------- |
| |
| Start off at Mac:Demo:index.html. Read at least the first few sections. |
| |
| There are also some interesting files in the "Relnotes" folder that may |
| contain useful information. There is also a first stab at documentation |
| (plus examples) in the Mac:Demo folder. The toplevel Demo folder has |
| machine-independent demos. |
| The Mac:Lib:test folder also has some programs that show simple |
| capabilities of various modules. |
| |
| The ":Mac:scripts" folder has some sample scripts. Some are useful, |
| some are just interesting to look at to see how various things |
| work. The MkDistr, mkapplet and fullbuild scripts (plus the ones |
| mentioned above) may help you to understand how to use AppleEvents and |
| various other toolboxes from python. |
| |
| Other mac-specific goodies can be found in :Mac:Tools, of which the |
| IDE sources and a CGI framework deserve special mention. |
| |
| The 'img' group of modules, which handles I/O of many different image |
| formats is included, but without documentation. You can find docs at |
| ftp://ftp.cwi.nl/pub/jack/python/img (or somewhere around there). |
| |
| Finally there is a Mac:Contrib folder which contains some contributed |
| software. |
| |
| Upgrading from older Python releases |
| ------------------------------------ |
| |
| Python releases are independent of each other, with separate |
| Preferences files, shared library names, etc. The good news is that |
| this means you can keep your older version around if you are unsure |
| whether to upgrade. The bad news is that your old preference settings |
| are lost and you have to set them again. |
| |
| After you are satisfied that 2.2.1 works as expected you can trash |
| anything in the system folder that has "python" in the name and not |
| "2.2.1". |
| |
| The ConfigurePython... applets will try to detect incompatible |
| preferences files and offer to remove them. This means that re-running |
| ConfigurePython after a second install of the same MacPython version |
| (or after moving the Python folder) should fix things up correctly. |
| |
| The installer |
| ------------- |
| |
| The installer for this product was created using Installer VISE |
| from MindVision Software. For more information on Installer VISE, |
| contact: |
| MindVision Software |
| 7201 North 7th Street |
| Lincoln, NE 68521-8913 |
| Voice: 402-477-3269 |
| Fax: 402-477-1395 |
| Internet: mindvision@mindvision.com |
| http://www.mindvision.com |
| |
| Just van Rossum <just@letterror.com> created the initial version of the |
| installer (with Installer Vise Lite), and Jack worked from there. |
| |
| Thanks! |
| ------- |
| |
| As of Python 2.3 the MacPython thanks list has been merged into the |
| general acknowledgements, see :Misc:ACKS. |
| |
| MacPython includes waste, a TextEdit replacement which is (c) 1998 |
| Marco Piovanelli. |
| |
| A special mention is deserved by Matthias Neeracher, who has written |
| the brilliant unix-compatible GUSI I/O library, without which |
| MacPython would not have sockets or select, and to Alexandre |
| Parenteau, who has ported this library to Carbon. |
| |
| Feedback |
| -------- |
| |
| Send bug reports, suggestions, contributions and fanmail to |
| <jack@cwi.nl>. However, a better way to discuss MacPython is to join the |
| <pythonmac-sig@python.org> mailing list, which is explicitly meant for |
| this purpose. |
| |
| |
| Jack Jansen |
| CWI |
| Kruislaan 413 |
| 1098 SJ Amsterdam |
| the Netherlands |
| |
| <jack@cwi.nl>, http://www.cwi.nl/~jack |