mirror of https://github.com/python/cpython
143 lines
6.7 KiB
Plaintext
143 lines
6.7 KiB
Plaintext
How to install Python 1.4 on your Macintosh
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------------------------------------------------
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Even if you don't usually read readme files: please read at least the
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first sections of this file, failure to do so will probably result in
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an unuseable python system. If this warning is too late and you already
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have an non-functional python: it is best to remove all traces and start
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with a fresh distribution. Especially don't forget to remove the
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"python 1.4 preferences" file from the Preferences folder, and possibly
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"PythonCorePPC 1.4" and/or "PythonCoreCFM68K 1.4"
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from the Extensions folder. Before you mail me for help *please*
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try the steps above (cleaning up and re-installing): it should fix most
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common mistakes. If you are installing a CFM68K python also check that
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your installation of CFM68K was done correctly.
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If this is your first encounter with Python: you definitely need the common
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user documentation (common to all platforms). You can find this (in various
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forms) on www.python.org and ftp.python.org.
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Mac-specific documentation is included in this distribution in folder Mac:Demo.
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The documentation is sparse, but it will have to serve for now. The documentation
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is in HTML format, start with index.html.
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If you have a pre-system 7 macintosh: sorry, this release will not work
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on your system. Too many sys7 features are used to make a sys6 python
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easy to create. If you really want one: tell me, maybe I can be convinced.
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Alternatively: get the sources, put in the necessary gestalt() and
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compatability calls yourself and send me the results.
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If you don't have enough memory: the sizes choosen are somewhat arbitrary.
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Try lowering them and seeing whether the resulting python is still usable.
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Note, however, that python running out of memory may result in your mac
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freezing. If this happens I would like to hear of it.
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Note that if you're using Tk you might want to raise the memory size, tcl
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and tk are quite a memory hog.
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A final note to CFM68K (and possibly PPC) users: the Code Fragment Manager
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can (incorrectly) produce "library not found" and other strange error messages
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when it really means that there is not enough room in the system heap. Decreasing
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(yes, *de*creasing) the size of the interpreter and/or enabling virtual memory
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may solve these problems.
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PowerPC and CFM68K Macintosh instructions
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-----------------------------------------
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For CFM68K you need a Mac with a 68020, 68030 or 68040, and at least System 7.1.1.
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CFM68K Python will not run on PowerPC Macs. Before installing Python you
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should install CFM68K. Put everything from the "CFM68K for System Folder" into the
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Extensions folder and restart.
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Run the MkPluginAliases applet. This will create an initial preferences file.
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Next, it will create a number of aliases in the PlugIns folder. Finally
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it will put an alias to your PythonCore in the Extensions folder. The whole
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process should be independent of any previous releases of Python on your disk
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(and these releases should still continue working).
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For all these things to work correctly it is vital that you don't move anything
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around before running MkPluginAliases. After you have set things up you may
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move things around to your hearts' desire.
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Classic 68K Macintosh instructions
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----------------------------------
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Run Python68K. This will create an initial preferences file. Quit python.
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Common instructions
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-------------------
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You should now have a functioning python. It is probably a good idea to run
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"testall.py" from :Lib:test at this point, this should not give any errors.
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Running testall.py is done by double-clicking it or dropping it onto the
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interpreter.
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Next, try "compileall.py" from :Lib to create all .pyc files (but this isn't
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really important).
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PPC and CFM68K users have a couple of applets in the main folder they may want to try,
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(68K users can use the corresponding scripts from the "scripts" folder):
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- EditPythonPrefs allows you to edit the preferences file, to change the
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python home folder or modify the initial sys.path setting.
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The default settings are somewhat arbitrary, you can remove tkinter if
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you don't use it and possibly add Extensions:img:Lib.
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- mkapplet creates a python applet, a tiny application written
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in python. Drop a python source on it and out comes the application. More
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information can be found in the "Mac:Demo" folder.
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PPC and CFM68K users will see one more files in the python folder: PythonApplet. This is
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the template for building applets, leave it alone. For the 1.4b3 release the applet is
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specific for your installation, i.e. PPC applets will not run on CFM68K machines and vice
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versa. I hope to fix this soon.
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Things to see
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-------------
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There are some readme files in the "Read me files" folder that may contain
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useful information. There is also a first stab at documentation (plus examples)
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in the Mac:Demo folder. The toplevel Demo folder has machine-independent demos.
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See the file Readme-mac for mac-specific notes. The Mac:Lib:test folder also
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has some programs that show simple capabilities of various modules.
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The "scripts" folder has some sample scripts. Some are useful, some are just
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interesting to look at to see how various things work. The MkDistr, mkapplet
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and fullbuild scripts (plus the ones mentioned above) may help you to understand
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how to use AppleEvents and various other toolboxes from python.
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The 'img' group of modules, which handles I/O of many different image formats
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(not pict yet, sigh:-) is included, but without documentation. You can find
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docs at ftp://ftp.cwi.nl/pub/jack/python/img (or somewhere around there).
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Upgrading from older Python releases
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------------------------------------
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Since release 1.4 Python releases are independent of each other, with separate
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Preferences files, shared library names, etc. The good news is that this means you
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can keep your older version around if you are unsure whether to upgrade. The bad
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news is that your old preference settings are lost and you have to set them again.
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After you are satisfied that 1.4 works as expected you can trash anything in the
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system folder that has "python" in the name and not "1.4".
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Feedback
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--------
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Send bug reports, suggestions, contributions and fanmail to <jack@cwi.nl>.
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Be warned however that I'm pretty busy, so I may not always
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respond immedeately.
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A better way to discuss MacPython is to join the <pythonmac-sig@python.org>
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mailing list, which is explicitly meant for this purpose.
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Alternatively, you can try sending to comp.lang.python or python-list@cwi.nl,
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but since I read the newsgroup, not the mailinglist, I may miss it there
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(but other people may know quite a bit more than me anyway:-).
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Jack Jansen
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Centrum voor Wiskunde en Informatica
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Kruislaan 413
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1098 SJ Amsterdam
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the Netherlands
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<jack@cwi.nl>, http://www.cwi.nl/~jack
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