Difficulty operating Copy and Paste between Numbers, Pages, Safari, terminal, Claude app, ChatGPT app might be associated with python code

 Difficulty operating Copy and Paste between Numbers, Pages, Safari, terminal, Claude app, ChatGPT app might be associated with python code generated by both ChatGPT and Claude. Complete restart of iMac OS is required. Questions —associated? Only with file-related code?

Answer (Claude):

These are almost certainly related, and no, it's not limited to file-related code. Here's what's happening:

The likely culprit: the macOS pasteboard daemon (pboard)

macOS routes all clipboard operations through a system process called pboard. If a Python script acquires a lock on the pasteboard and then hangs or exits uncleanly, pboard can get stuck — blocking clipboard access across every app until it's restarted.

What kinds of Python code can trigger this:

• Anything using pyperclip (very common in AI-generated clipboard helpers)
• Scripts calling pbcopy or pbpaste via subprocess
• Scripts using AppKit.NSPasteboard directly
• File I/O code — not because it touches the clipboard, but because a hanging file operation can leave the whole Python process frozen while it still holds system resources, including a pasteboard lock if it grabbed one earlier
• Any script that crashes mid-execution without cleanup

So: associated with AI-generated Python code? Yes. Only file-related? No — but file code hangs more often (waiting on I/O, permissions, paths), which is probably why you've noticed the pattern there.

The good news: you don't need a full restart. Try this first next time:

bash

sudo killall pboard

macOS automatically relaunches pboard immediately. Clipboard should restore within a second or two across all apps.

You can also check what's holding resources with:

bash

lsof | grep pboard

If you want to go further, I can help you identify which specific scripts are most likely to cause this, or add cleanup handling to prevent it.

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Answer (ChatGPT): 

• ython text pasted into Terminal or an app does not itself damage copy/paste.
• Running a Python script could indirectly contribute only if it is doing something unusual with the clipboard, accessibility, input hooks, or system automation — which most simple scripts do not.
• The stronger suspects are macOS pasteboard glitches, Electron app quirks, or large/odd clipboard contents. 

A good next test is this:

1. When the problem happens, try copy/paste in TextEdit.
2. If it fails everywhere, it is probably system clipboard / pboard.
3. If it fails only in ChatGPT or Claude, it is probably that app.
4. If reboot fixes it every time, that also points more to clipboard/app state than to Python code itself. 

The quickest non-restart fix to try next time is in Terminal:

killall pboard

That restarts the macOS clipboard service and often restores copy/paste without a full reboot. Some users also report clearing the clipboard buffer with:

pbcopy < /dev/null

before testing again. 

If you want, I can help you make a very short “when copy/paste freezes” checklist for your iMac.