🌐 Mailman 3 October 2007 - Pythonmac-SIG - python.org

readline support for OS X Leopard
by Noah Gift Nov. 21, 2007

Nov. 21, 2007

I have been getting ready for the official leopard release in a few days, and have been a bit worried about readline support. I forgot what I did to get it to work for IPython, which I absolutely cannot live without anymore. Is there a plan for a Leopard binary that fixes readline, or can I help someone prepare some documentation on getting readline working properly. I don't have a lot of time during the next couple of weeks to get into compile hell, but if someone has any easy fix to get readline to work, I would greatly appreciate it.

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P4Python, MySQLdb, or Python Extensions
by Lyndsey Ferguson Nov. 19, 2007

Nov. 19, 2007

Hello everyone, Short time lurker, first time poster. I'm trying to install P4Python and MySQLdb, but am running into a host of issues. The trouble I've had trying to install these two and the number of similar experiences I've read through googling leads me to believe that Python can be difficult on the Mac. I will talk about P4Python as it seems to be the easier of the two. I'm trying to compile the given c++ file to build a Python Extension, but the setup.py doesn't work as it should be linking in CoreFoundation, but it is not. ImportError: Failure linking new module: /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/P4Client.so: Symbol not found: ___CFConstantStringClassReference Referenced from: /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/P4Client.so Expected in: dynamic lookup I tried to use Xcode to build something that can go where the site-packages go. But I have no idea what to build. It is not a dynamic library, it is not a relocatable object, I get this error when I try to import: Traceback (most recent call last): File "<stdin>", line 1, in ? File "p4.py", line 19, in ? import P4Client ImportError: Inappropriate file type for dynamic loading Has anyone done this? How do I build a Python Extension using Xcode? Or perhaps even better, how do I get setup.py to work on the Mac? Thanks for any and all tips! Lyndsey Ferguson

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Re: [Pythonmac-SIG] Python control/integration of a Cocoa/Quicktime application?
by has Nov. 3, 2007

Nov. 3, 2007

Darran Edmundson wrote: > I have a python program on the Mac that determines, among other > things, the screen location. The OS X developers are going to > write a full-screen Cocoa application [...] The question then: how > to join these two codes? > 1) Get the Mac guys to write their application as a library that > can be wrapped in pyObjC and invoked by my python program. In this > scenario, the result is only one process/program with no network > issues. > > 2) Add networking code to both the python and cocoa apps in order > to communicate (binary socket, XML over http, Bonjour, etc.). Easy > in python via Twisted, no doubt less so in cocoa. Jack's already given advice on #1 and suggested embedding Python as a third option. As for the IPC option, you're pretty well covered there too. The two high-level approaches I'd recommend investigating are: 1. Apple events using appscript/aem on the client side and OS X's Cocoa Scripting framework on the server side (although there are other options available as well). 2. Cocoa's Distributed Objects system, using PyObjC on the client side. HTH has -- http://appscript.sourceforge.net http://rb-appscript.rubyforge.org

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Re: [Pythonmac-SIG] [IPython-dev] readline support for OS X Leopard
by Boyd Waters Oct. 31, 2007

Oct. 31, 2007

This "which python" is an important point, but it is NOT causing my segfault. I'm using Apple's Python. I'm certain. For IPython. If you add this code to iplib.py then you are able to determine if you are bound to libedit. have_libedit - False if sys.platform == 'darwin' and have_readline: import commands (status, result) = commands.getstatusoutput( "otool -L %s | grep libedit" % _rl.__file__ ) if status == 0 and len(result) > 0: # we are bound to libedit - new in Leopard # _rl.parse_and_bind("bind ^I complete") print "Leopard libedit detected." have_libedit = True And that's what I see on the output when I start up ipython: $ ipython Leopard libedit detected. Python 2.5.1 (r251:54863, Oct 5 2007, 21:08:09) Type "copyright", "credits" or "license" for more information. IPython 0.8.2.svn.r2841 -- An enhanced Interactive Python. The problem is to pass the "complete" method correctly to libedit. In iplib.py, line 1342: # Configure readline according to user's prefs for rlcommand in self.rc.readline_parse_and_bind: if rlcommand.startswith("tab"): pass if readline.have_libedit: rlcommand = "bind ^I complete" print rlcommand readline.parse_and_bind(rlcommand) The FIRST time I launch IPython after making this change, I get an "Invalid command" error from readline: $ ipython Leopard libedit detected. bind ^I complete bind: Invalid command `complete'. "\C-l": possible-completions set show-all-if-ambiguous on "\C-o": tab-insert "\M-i": " " "\M-o": "\d\d\d\d" "\M-I": "\d\d\d\d" "\C-r": reverse-search-history "\C-s": forward-search-history "\C-p": history-search-backward "\C-n": history-search-forward "\e[A": history-search-backward "\e[B": history-search-forward "\C-k": kill-line "\C-u": unix-line-discard Python 2.5.1 (r251:54863, Oct 5 2007, 21:08:09) And the modules are compiled as a side-effect. AFTER the modules are compiled, I simply get a segfault: In [1]: ^D Do you really want to exit ([y]/n)? galatea:~ bwaters$ ipython Leopard libedit detected. bind ^I complete Segmentation fault SO: 1) How do I form the bind commands for libedit? "EditLine" syntax 2) The segfault is a bug, methinks. I posted it as such. On Oct 31, 2007, at 9:28 AM, Brian Granger wrote: > Can you do look at the output of: > > head `which ipython` > > This will tell you which python your ipython (the ipython that is > first in your path if there are multiple) is using. > > Brian > > > On 10/31/07, Boyd Waters <bwaters(a)nrao.edu> wrote: >> >> >> >> >> On Oct 31, 2007, at 3:27 AM, Hans Meine wrote: >> >> BUT from inside *ipython* I get a segmentation fault. >> >> >> Again - are you sure that both use the same python version? >> >> Thanks, good suggestion, but in this case I'm pretty sure. >> >> I uninstalled all MacPorts pythons before running this test. >> This is basically a clean install of Leopard. >> >> >> $ python >> Python 2.5.1 (r251:54863, Oct 5 2007, 21:08:09) >> [GCC 4.0.1 (Apple Inc. build 5465)] on darwin >> Type "help", "copyright", "credits" or "license" for more >> information. >>>>> import os >>>>> import readline >>>>> import rlcompleter >>>>> print os.system("otool -L %s" % readline.__file__) >> /System/Library/Frameworks/Python.framework/Versions/2.5/lib/ >> python2.5/lib-dynload/readline.so: >> /usr/lib/libedit.2.dylib (compatibility version 2.0.0, current >> version >> 2.9.0) >> /usr/lib/libncurses.5.4.dylib (compatibility version 5.4.0, current >> version >> 5.4.0) >> /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current >> version >> 1.0.0) >> /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current >> version >> 111.0.0) >> 0 >>>>> readline.parse_and_bind ("bind ^I rl_complete") >>>>> readline.[TAB KEY PRESSED]readline.__class__ >> readline.__class__ >> readline.__class__ >> readline.__delattr__ readline.__delattr__ >> readline.__dict__ >> ... >> >>>>> ^D >> >> >> >> $ ipython >> In [1]: import os >> >> In [2]: import readline >> >> In [3]: import rlcompleter >> >> In [4]: print os.system("otool -L %s" % readline.__file__) >> /Library/Python/2.5/site-packages/IPython/rlineimpl.pyc: >> is not an object file >> 0 >> >> >> Hmm. >> >> >> >> _______________________________________________ >> IPython-dev mailing list >> IPython-dev(a)scipy.org >> http://lists.ipython.scipy.org/mailman/listinfo/ipython-dev >> >>

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Re: [Pythonmac-SIG] readline support for OS X Leopard
by Robert Kern Oct. 31, 2007

Oct. 31, 2007

Robert Kern wrote: > Boyd Waters wrote: >> On Oct 26, 2007, at 7:50 PM, emoy(a)apple.com wrote: >> >>> It right there in my original message (and in the python man page). >>> You have to use EditLine syntax: >>> >>> readline.parse_and_bind ("bind ^I rl_complete") >> Edward's example of using EditLine syntax works for my "raw python" >> test: >> >> $ python >> >>> import rlcompleter >> >>> import readline >> >>> readline.parse_and_bind ("bind ^I rl_complete") >> >> >>> readline.[TAB KEY PRESSED] >> readline.__class__ >> readline.__class__ readline.__class__ >> readline.__delattr__ >> readline.__delattr__ readline.__dict__ >> ... > > Try typing "b". Sorry, I misread your post. I meant that trying that with a readline module compiled against GNU readline interferes with typing "b". So, unfortunately, you can't just issue both commands hoping that the library will just ignore the wrong one. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco

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Re: [Pythonmac-SIG] [IPython-dev] readline support for OS X Leopard
by Boyd Waters Oct. 30, 2007

Oct. 30, 2007

On Oct 30, 2007, at 4:41 PM, Hans Meine wrote: > What about multiple pythons/readlines? I happend to look over the > shoulder of > an OS X user yesterday, who had three versions of python installed > on his > system. (I would not suggest that this is a good idea, but AFAICS > it happens > all too easy..) Ouch! I represent that remark! OK, I've got my Leopard development system right here and I've got the Python 2.5.1/readline that we maintain for our science application. print os.system("otool -L %s" % readline.__file__) /System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/ lib-dynload/readline.so: /usr/lib/libedit.2.dylib (compatibility version 2.0.0, current version 2.9.0) /usr/lib/libncurses.5.4.dylib (compatibility version 5.4.0, current version 5.4.0) /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.0.0)

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Re: [Pythonmac-SIG] Error installing mysql-python 1.2.2 on mac os x 10.4.9
by Lyndsey Ferguson Oct. 30, 2007

Oct. 30, 2007

Hi Alex, I'm responding to your question on the list so that everyone can benefit from our experiences: On Oct 30, 2007, at 1:29 PM, Alessandro Censoni wrote: > >ImportError: dlopen(/Users/alessandrocensoni/.python-eggs/ > MySQL_python-1.2.2-py2.5-macosx-10.3-fat.egg-tmp/_mysql.so, 2): > Library not loaded: >/usr/local/mysql/lib/mysql/libmysqlclient_r. > 15.dylib > >Referenced from: /Users/alessandrocensoni/.python-eggs/ > MySQL_python-1.2.2-py2.5-macosx-10.3-fat.egg-tmp/_mysql.so > >Reason: image not found > > And I don't know what to do!!!Now I'm looking for other people who > had the same problem.I don't know you had it. The problem is that the build system is trying to build a Universal Binary version of the library and you need to install the Universal Binary version of MySQL along with the libraries: The line: "/Users/alessandrocensoni/.python-eggs/MySQL_python-1.2.2-py2.5- macosx-10.3-fat.egg-tmp/_mysql.so, 2): Library not loaded: >/usr/local/ mysql/lib/mysql/libmysqlclient_r.15.dylib" Is a hint, if you go to that directory, you'll see that running the command line tool "lipo" will tell you that the library libmysqlclient_r.15.dylib is not Universal. You need to get the Universal Binary version of the MySQL library from the www.mysql.org website. Get the UB version and install it -- removing the old version of MySQL. Sorry I neglected to mention that, there are quite a few steps involved, it really is a pain in the butt. Good luck! Lyndsey

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Default Leopard Python and bsddb
by Luc Heinrich Oct. 30, 2007

Oct. 30, 2007

Grettings, Anybody knows how to make the bsddb module of the default Leopard's Python work ? Right now, all I get is this: >>> import bsddb.db Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/ python2.5/bsddb/__init__.py", line 51, in <module> import _bsddb ImportError: No module named _bsddb (sigh...) Thanks for any help. -- Luc Heinrich

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Error installing mysql-python 1.2.2 on mac os x 10.4.9
by Alessandro Censoni Oct. 30, 2007

Oct. 30, 2007

Hi all, I trie to install mysql-python 1.2.2 but I have a lot of errors. I have install MySQL 5.0.45 and python 2.5.1. I use Mac OS X 10.4.9 and when I trie to build mysqldb i have the following and famous error: >sh: line 1: mysql_config: command not found >Traceback (most recent call last): >File "setup.py", line 16, in <module> >metadata, options = get_config() >File "/Users/alessandrocensoni/Desktop/MySQL-python-1.2.2/setup_posix.py", line 43, in get_config >libs = mysql_config("libs_r") >File "/Users/alessandrocensoni/Desktop/MySQL-python-1.2.2/setup_posix.py", >line 24, in mysql_config >raise EnvironmentError, "%s not found" % mysql_config.path >EnvironmentError: mysql_config not found I trie to install the mysqldb but I have however errors. I don't know where I have to do the change suggested in various sites and posts relative to: return popen(“mysql_config --%s” % what) (1) to return popen(“/usr/local/mysql/bin/mysql_config --%s” % what) (2) In the python.py of the mysql-python-1.2.2 there isn't a line like (1). While, in the file site.cfg I don't know what I have to change like someone suggest to eliminate the problem of the installation. I also trie to install mysql-python-1.2.1_p2 and edit the setup.py by changing the line how suggest previously but I have the following error: >File "setup.py", line 26 > f = popen(“/usr/local/mysql/bin/mysql_config --%s” % what) > ^ >SyntaxError: invalid syntax Can someone help me please? Thanks a lot Alex _________________________________________________________________ Scarica GRATIS 30 emoticon per Messenger! http://www.emoticons-livemessenger.com/pages/msnit/index.htm

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Welcome Leopard
by Riccardo Tediosi Oct. 27, 2007

Oct. 27, 2007

Dear Memebers, Leopard is arrived and on my Mac everything is working really great. Now a question. I'm using python for my scientific research and I really need it. In particular I use pylab and scipy for their modules and for the graphical output. Now on Tiger the python version was older (2.4) than the one provided with MacPython 2.5 but on Leopard there is already the 2.5.1 version. For this reason I tried to install matlotlib without installing MacPython. Unfortunately while I was installing the packages required for matplotlib.dmg package (dateutils etc...) the installation stopped because it was impossible to find system version Python 2.5... what is wrong!? Do you think I should install anyway also MacPython before going on with dateutils and matplotlib!? I'm just trying to install the less software possible and since ver. 2.5.1. was aready there would be nice to use it and not to put an extra version. Any ideas!??! Best wishes. Rik

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