Import errors on MacOS having to do with PyObjC installation

[loganfred]

macOS Catalina v. 10.15.7

This is really confusing to me and I can't figure it out. Installation goes fine (no red output or anything) but as soon as I try to actually use Pyautogui I get some kind of runtime assertion error.

Repro Steps:

1. install Python 3.7 via brew

> brew install python@3.7

2. create and activate virtual environment

> /usr/local/opt/python@3.7/bin/python3.7 -m venv venv

> source venv/bin/activate

3. install pyautogui

(venv) > python -m pip install pyautogui

4. test

Python 3.7.9 (default, Nov 20 2020, 18:45:38)
[Clang 12.0.0 (clang-1200.0.32.27)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyautogui
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/pyautogui/_pyautogui_osx.py", line 5, in <module>
    import Quartz
  File "/usr/local/lib/python3.7/site-packages/Quartz/__init__.py", line 6, in <module>
    import AppKit
  File "/usr/local/lib/python3.7/site-packages/AppKit/__init__.py", line 10, in <module>
    import Foundation
  File "/usr/local/lib/python3.7/site-packages/Foundation/__init__.py", line 9, in <module>
    import CoreFoundation
  File "/usr/local/lib/python3.7/site-packages/CoreFoundation/__init__.py", line 16, in <module>
    objc.pathForFramework("/System/Library/Frameworks/CoreFoundation.framework"),
  File "/usr/local/lib/python3.7/site-packages/objc/_dyld.py", line 148, in pathForFramework
    fpath, name, version = infoForFramework(dyld_find(path))
  File "/usr/local/lib/python3.7/site-packages/objc/_dyld.py", line 142, in dyld_find
    return dyld_framework(filename, framework_name, version)
  File "/usr/local/lib/python3.7/site-packages/objc/_dyld.py", line 101, in dyld_framework
    if _dyld_shared_cache_contains_path(f):
NotImplementedError: _dyld_shared_cache_contains_path not available

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.7/site-packages/pyautogui/__init__.py", line 536, in <module>
    from . import _pyautogui_osx as platformModule
  File "/usr/local/lib/python3.7/site-packages/pyautogui/_pyautogui_osx.py", line 7, in <module>
    assert False, "You must first install pyobjc-core and pyobjc: https://pyautogui.readthedocs.io/en/latest/install.html"
AssertionError: You must first install pyobjc-core and pyobjc: https://pyautogui.readthedocs.io/en/latest/install.html

5. sanity test

(venv) > python -m pip freeze
MouseInfo==0.1.3
Pillow==8.0.1
PyAutoGUI==0.9.52
PyGetWindow==0.0.9
PyMsgBox==1.0.9
pynput==1.7.1
pyobjc==7.0
pyobjc-core==7.0
pyobjc-framework-Accounts==7.0
pyobjc-framework-AddressBook==7.0
pyobjc-framework-AdSupport==7.0
pyobjc-framework-AppleScriptKit==7.0
pyobjc-framework-AppleScriptObjC==7.0
pyobjc-framework-ApplicationServices==7.0
pyobjc-framework-AuthenticationServices==7.0
pyobjc-framework-AutomaticAssessmentConfiguration==7.0
pyobjc-framework-Automator==7.0
pyobjc-framework-AVFoundation==7.0
pyobjc-framework-AVKit==7.0
pyobjc-framework-BusinessChat==7.0
pyobjc-framework-CalendarStore==7.0
pyobjc-framework-CFNetwork==7.0
pyobjc-framework-CloudKit==7.0
pyobjc-framework-Cocoa==7.0
pyobjc-framework-Collaboration==7.0
pyobjc-framework-ColorSync==7.0
pyobjc-framework-Contacts==7.0
pyobjc-framework-ContactsUI==7.0
pyobjc-framework-CoreAudio==7.0
pyobjc-framework-CoreAudioKit==7.0
pyobjc-framework-CoreBluetooth==7.0
pyobjc-framework-CoreData==7.0
pyobjc-framework-CoreHaptics==7.0
pyobjc-framework-CoreLocation==7.0
pyobjc-framework-CoreMedia==7.0
pyobjc-framework-CoreMediaIO==7.0
pyobjc-framework-CoreMIDI==7.0
pyobjc-framework-CoreML==7.0
pyobjc-framework-CoreMotion==7.0
pyobjc-framework-CoreServices==7.0
pyobjc-framework-CoreSpotlight==7.0
pyobjc-framework-CoreText==7.0
pyobjc-framework-CoreWLAN==7.0
pyobjc-framework-CryptoTokenKit==7.0
pyobjc-framework-DeviceCheck==7.0
pyobjc-framework-DictionaryServices==7.0
pyobjc-framework-DiscRecording==7.0
pyobjc-framework-DiscRecordingUI==7.0
pyobjc-framework-DiskArbitration==7.0
pyobjc-framework-DVDPlayback==7.0
pyobjc-framework-EventKit==7.0
pyobjc-framework-ExceptionHandling==7.0
pyobjc-framework-ExecutionPolicy==7.0
pyobjc-framework-ExternalAccessory==7.0
pyobjc-framework-FileProvider==7.0
pyobjc-framework-FileProviderUI==7.0
pyobjc-framework-FinderSync==7.0
pyobjc-framework-FSEvents==7.0
pyobjc-framework-GameCenter==7.0
pyobjc-framework-GameController==7.0
pyobjc-framework-GameKit==7.0
pyobjc-framework-GameplayKit==7.0
pyobjc-framework-ImageCaptureCore==7.0
pyobjc-framework-IMServicePlugIn==7.0
pyobjc-framework-InputMethodKit==7.0
pyobjc-framework-InstallerPlugins==7.0
pyobjc-framework-InstantMessage==7.0
pyobjc-framework-Intents==7.0
pyobjc-framework-IOSurface==7.0
pyobjc-framework-iTunesLibrary==7.0
pyobjc-framework-LatentSemanticMapping==7.0
pyobjc-framework-LaunchServices==7.0
pyobjc-framework-libdispatch==7.0
pyobjc-framework-LinkPresentation==7.0
pyobjc-framework-LocalAuthentication==7.0
pyobjc-framework-MapKit==7.0
pyobjc-framework-MediaAccessibility==7.0
pyobjc-framework-MediaLibrary==7.0
pyobjc-framework-MediaPlayer==7.0
pyobjc-framework-MediaToolbox==7.0
pyobjc-framework-Metal==7.0
pyobjc-framework-MetalKit==7.0
pyobjc-framework-MetalPerformanceShaders==7.0
pyobjc-framework-ModelIO==7.0
pyobjc-framework-MultipeerConnectivity==7.0
pyobjc-framework-NaturalLanguage==7.0
pyobjc-framework-NetFS==7.0
pyobjc-framework-Network==7.0
pyobjc-framework-NetworkExtension==7.0
pyobjc-framework-NotificationCenter==7.0
pyobjc-framework-OpenDirectory==7.0
pyobjc-framework-OSAKit==7.0
pyobjc-framework-OSLog==7.0
pyobjc-framework-PencilKit==7.0
pyobjc-framework-Photos==7.0
pyobjc-framework-PhotosUI==7.0
pyobjc-framework-PreferencePanes==7.0
pyobjc-framework-PushKit==7.0
pyobjc-framework-Quartz==7.0
pyobjc-framework-QuickLookThumbnailing==7.0
pyobjc-framework-SafariServices==7.0
pyobjc-framework-SceneKit==7.0
pyobjc-framework-ScreenSaver==7.0
pyobjc-framework-ScriptingBridge==7.0
pyobjc-framework-SearchKit==7.0
pyobjc-framework-Security==7.0
pyobjc-framework-SecurityFoundation==7.0
pyobjc-framework-SecurityInterface==7.0
pyobjc-framework-ServiceManagement==7.0
pyobjc-framework-Social==7.0
pyobjc-framework-SoundAnalysis==7.0
pyobjc-framework-Speech==7.0
pyobjc-framework-SpriteKit==7.0
pyobjc-framework-StoreKit==7.0
pyobjc-framework-SyncServices==7.0
pyobjc-framework-SystemConfiguration==7.0
pyobjc-framework-SystemExtensions==7.0
pyobjc-framework-UserNotifications==7.0
pyobjc-framework-VideoSubscriberAccount==7.0
pyobjc-framework-VideoToolbox==7.0
pyobjc-framework-Vision==7.0
pyobjc-framework-WebKit==7.0
pyperclip==1.8.1
PyRect==0.1.4
PyScreeze==0.1.26
PyTweening==1.0.3
rubicon-objc==0.4.0
six==1.15.0

[loganfred]

I did also try this thing and no luck.

MACOSX_DEPLOYMENT_TARGET=10.11 pip install pyobjc

[hwangwoohyun-nav]

Facing same issue while importing pyautogui MacOS version 10.15.7

[asweigart]

On my macOS Catalina 10.15.7 machine running Python 3.8, I'm installing PyAutoGUI and getting pyobjc 7.3 and can import it just fine.

Can others chime in on if they're getting this error?

[JayRizzo]

Hey @asweigart,

I wrote up about this on issue #495 .

A fresh install resolves this issue. if that is too much try removing the other variations of python installations from your computer. I suspect that is the issue.

In python 3.10.5 a fresh install accompanied with pip3 install pyautogui doesn't seem to have this issue.

https://github.com/asweigart/pyautogui/issues/495#issuecomment-1172557674