Mailman 3 March 2022 - Pythonmac-SIG

Universal build launches as Intel on M1
by Aivar Annamaa March 29, 2022

March 29, 2022

Hi! I have an app bundle, with embedded python.org's universal build of Python 3.10.2 framework and a Tkinter-based GUI ( https://github.com/thonny/thonny/releases/tag/v4.0.0b1) I've used IDLE's approach in the Info.plist, and the launcher script. Functionally all is working fine, but a M1 user reported, that when opened from Finder, the app is launched in "Intel" mode. When the launcher is invoked in Terminal (/Applications/Thonny.app/Contents/MacOS/thonny), the app gets run in AMD64 mode. I don't have a M1 myself, so I haven't reproduced it myself. The same user now said that latest IDLE (3.10.4) runs in AMD64 mode even when launched from Finder. Any ideas what to check or try in order to make my app run in native mode? My launcher script template is here: https://github.com/thonny/thonny/blob/master/packaging/mac/Thonny.app.initi… (shebang becomes gets set to .../Thonny.app/Contents/Frameworks/Python.framework/Versions/3.10/Resources/Python.app/Contents/MacOS/Python by the postinstall script) Info.plist template is here: https://github.com/thonny/thonny/blob/master/packaging/mac/Thonny.app.initi… Best regards, Aivar

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Building against OpenGL
by Chris Barker March 22, 2022

March 22, 2022

I have an app that uses a C (Cython) extension that needs to link against the OpenGL libs (libGL and libGLU) Here's the code that used to work: gl_libraries = ["GL", "GLU"] ... gl_include_dirs.append( "/System/Library/Frameworks/OpenGL.framework/Headers", ) gl_library_dirs.append("/System/Library/Frameworks/OpenGL.framework/Libraries", ) And this resulted in this linking line that fails: clang -bundle -undefined dynamic_lookup -Wl,-rpath,/Users/chris.barker/miniconda3/envs/maproom39/lib -L/Users/chris.barker/miniconda3/envs/maproom39/lib -Wl,-rpath,/Users/chris.barker/miniconda3/envs/maproom39/lib -L/Users/chris.barker/miniconda3/envs/maproom39/lib build/temp.macosx-10.9-x86_64-3.9/libmaproom/Tessellator.o -L/System/Library/Frameworks/OpenGL.framework/Libraries -lGL -lGLU -o build/lib.macosx-10.9-x86_64-3.9/libmaproom/Tessellator.cpython-39-darwin.so ld: library not found for -lGL clang: error: linker command failed with exit code 1 (use -v to see invocation) error: command '/usr/bin/clang' failed with exit code 1 Some of this makes sense -- as System/Library/Frameworks/OpenGL.framework doesn't have Libraries and Headers anymore. However, it also doesn't have the headers or libraries (that I can tell) anywhere else in there. Oddly, the compiler is finding the headers somewhere -- not sure where. Google has failed me here -- but a few hints: 1) ctypes had to be updated to find the libs -- that was done, and ctypes seems to be working. but what it does is: In [1]: from ctypes.util import find_library In [2]: find_library("OpenGL") Out[2]: '/System/Library/Frameworks/OpenGL.framework/OpenGL' but /System/Library/Frameworks/OpenGL.framework/OpenGL doesn't exist on my system at all. Reading a bit -- it seems that OS-X is doing some kind of cached libs trickery -- but how do I tell distutils / clang how to find those libs?? Enclosed is the whole setup.py in case I've missed a detail. Sometimes Apple Drives me crazy! Thanks for any hints -- -CHB -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception Chris.Barker(a)noaa.gov

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Re: [Pythonmac-SIG] Hi. I am having difficulty installing NLTK on my Mac (12.02.01). Is there anyone who can help?
by Ned Deily March 7, 2022

March 7, 2022

On Mar 7, 2022, at 14:58, Robert Wasserman <robertwasserman(a)me.com> wrote: > Thank you so much for responding to my email. I’ve spent hours and searched for other forms of the instructions for using NLTK, You're welcome but, in the future, please reply to the mailing list so that everyone can participate and benefit. I've CC-ed this reply. > Under the lines that loaded Python 10.3.1 Python 10.3.1 Header, I got the >>> prompt and I assumed that I could continue with in Python3 by typing Python or Python3 but neither worked > and the from NLTK.book.import * returned the message printed below > import NLTK and followed that at the next >>> prompt with NLTK.downoad() > > > But did not get the material in Figure (the figure headed with Collectcions , Corpora Models All Packages etc. > > From the >>> prompt tried. >>>from NLTK.book import * > > Long ago, I recall having gone through the same process when using Python2.7 or perhaps 2.5 and got the data and was able to run Python and then the >>>from NLTK.book import *. > > …and then was able to type the commands such as text1(Moby Dick) and the other texts which I could then use with commands such as >>>text1.concordance(“monstrous”). Etc > > But when I used IDLE and brought up the Python3 prompt, it seemed that Python3 loaded properly but as not able to act on perform commands. The command line responded that > To my effort to type “from NLTK.book. import * > With. Last login: Sun Mar 6 14:49:42 on ttys000 > (base) robertwasserman@Roberts-MacBook-Pro ~ % python > Python 3.9.7 (default, Sep 16 2021, 08:50:36) > [Clang 10.0.0 ] :: Anaconda, Inc. on darwin > Type "help", "copyright", "credits" or "license" for more information. > >>> from nltk.book.import * > File "<stdin>", line 1 > from nltk.book.import * > ^ > SyntaxError: invalid syntax > >>> The syntax error is from an extra ".". Instead, try: from nltk.book import * -- Ned Deily nad(a)python.org -- []

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Hi. I am having difficulty installing NLTK on my Mac (12.02.01). Is there anyone who can help?
by Robert Wasserman March 7, 2022

March 7, 2022

I’ve been learning pylon on my Mac and and am trying to install NLTK so I can try the examples in the NLTK text. The instructions in NLTK are straightforward and I am able to get Python itself on my computer, but I cannot get “pip” to work. I would appreciate any help or sources of help. My problem seems to be getting Python to work on the data provided in the NLTK. Thank you in advance for any direction or advice you can provide. Robbie Wasserman robertwaserman(a)me.com

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