[issue42122] macOS complains about how fonts are accessed

[Christopher A. Chavez]

Christopher A. Chavez  added the comment:

This was already reported to Tcl/Tk: 
https://core.tcl-lang.org/tk/info/855049e799 . They determined it was caused by 
a bug in macOS 10.15.1. There are workarounds implemented for this in Tcl/Tk 
8.6.10 and the upcoming 8.6.11 releases.

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nosy: +chrstphrchvz

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[issue42122] macOS complains about how fonts are accessed

[Ronald Oussoren]

Ronald Oussoren  added the comment:

I'm getting a similar warning on a macOS 11 box:

0:06:29 load avg: 1.58 [184/424/1] test_idle
2020-11-07 10:43:37.878 Python[97785:3275468] CoreText note: Client requested 
name ".applesystemuifontmonospaced", it will get Times-Roman rather than the 
intended font. All system UI font access should be through proper APIs such as 
CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2020-11-07 10:43:37.878 Python[97785:3275468] CoreText note: Set a breakpoint 
on CTFontLogSystemFontNameRequest to debug.
2020-11-07 10:43:37.881 Python[97785:3275468] CoreText note: Client requested 
name ".applesystemuifontmonospaced", it will get Times-Roman rather than the 
intended font. All system UI font access should be through proper APIs such as 
CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].


I'm leaving this issue as closed because the font name is not used in CPython's 
source code. This is an issue with Tcl/Tk.

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[issue42122] macOS complains about how fonts are accessed

[Raymond Hettinger]

Raymond Hettinger  added the comment:

I'm going to mark this as closed, not a bug.  If you're not seeing the same 
result, it is almost certainly an issue with my local build.

--
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue42122] macOS complains about how fonts are accessed

[Ronald Oussoren]

Ronald Oussoren  added the comment:

Could you check "/tmp/py310/bin/python3 -m test.pythoninfo | grep -i tk". If 
that says your using Tk 8.5 you're almost certainly using the system version.

You could also check _tkinter itself:

otool -vL /tmp/py310/lib/python3.10/lib-dynload/_tkinter.cpython-310-darwin.so
/tmp/py310/lib/python3.10/lib-dynload/_tkinter.cpython-310-darwin.so:
/System/Library/Frameworks/Tcl.framework/Versions/8.5/Tcl 
(compatibility version 8.5.0, current version 8.5.9)
/System/Library/Frameworks/Tk.framework/Versions/8.5/Tk (compatibility 
version 8.5.0, current version 8.5.9)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
version 1292.0.0)

I propose closing this issue if you are indeed using the system copy of Tk.

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[issue42122] macOS complains about how fonts are accessed

[Raymond Hettinger]

Raymond Hettinger  added the comment:

I'm only Catalina 10.15.7 and am using a local build constructed with:

   ./configure --with-openssl=$(brew --prefix openssl) && make

Perhaps that is using the system Tk and we don't need to worry about this.

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[issue42122] macOS complains about how fonts are accessed

[Ronald Oussoren]

Ronald Oussoren  added the comment:

I know, but what I don't know is if Raymond uses the python.org installer. The 
initial message seems to indicate he's using a local build ("python.exe"). 

That will by default pick up the system version of Tk, which is ancient and is 
known to have problems.


And for completeness sake: I don't get these warnings, neither in IDLE nor when 
using your scriptlet (adjusted to try all fonts in "frames').

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[issue42122] macOS complains about how fonts are accessed

[Terry J. Reedy]

Terry J. Reedy  added the comment:

python.org 3.10 mac is still using 8.6.8.  It is on IDLE/Python => About

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[issue42122] macOS complains about how fonts are accessed

[Ronald Oussoren]

Ronald Oussoren  added the comment:

Raymond,

- What version of macOS are you on?
- How did you install python 3.10? Did you use the python.org installer?
- What version of Tk is used?
  (This can be found in the output of `python3.9 -m test.pythoninfo`)

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[issue42122] macOS complains about how fonts are accessed

[Terry J. Reedy]

Terry J. Reedy  added the comment:

On my Airbook, 'python310' was not found; 'python3.10' worked.

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[issue42122] macOS complains about how fonts are accessed

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I am sure that this is yet another macOS Catalina+ tcl/tk problem.  3.10 is 
fine on Mohave.  Those complaints must come from macOS in response to 'Client' 
tk requests.  IDLE and tkinter do not use those names.  If you want to try to 
see what tkinter function triggers those messages, try the following in the 
Python REPL.

import tkinter as tk
from tkinter import font
root = tk.Tk()
fnames = font.names(root)
f1 = font.Font(root=root, name=fnames[0], exists=True)
f2 = font.Font(root=root, name='TkFixedFont', exists=True)

--
assignee: terry.reedy -> 
components: +Tkinter, macOS -IDLE
nosy: +ned.deily, ronaldoussoren
title: IDLE complains about how fonts are accessed -> macOS complains about how 
fonts are accessed

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