Improved error message if access not granted

osxphotos/cli/export.py

@@ -75,6 +75,7 @@
     is_mounted_volume,
     is_photoslibrary_path,
     pluralize,
+    terminal,
     under_test,
 )
 
@@ -1691,8 +1692,12 @@ def export_cli(
             "Click 'Allow Access to All Photos' in the dialog box to grant access."
         )
         if not wait_for_photokit_authorization():
+            if term := terminal():
+                term = f"terminal app ({term})" if term else "terminal app"
             rich_click_echo(
-                f"[error]Error: could not get authorization to access Photos library.[/]"
+                f"[error]Error: could not get authorization to access Photos library\n"
+                f"Please ensure that your {term} is granted access in "
+                "'System Settings > Privacy & Security > Photos'"
             )
             return 1
 

osxphotos/utils.py

@@ -662,3 +662,11 @@ def download_url_to_temp_dir(url: str) -> str:
     # these files will be deleted when the system cleans the temp directory (usually on reboot)
     tmpdir = tempdir.tempdir("downloads")
     return download_url_to_dir(url, tmpdir, unique=True)
+
+
+def terminal() -> str:
+    """Return name of terminal app that launched the calling script or empty string if terminal cannot be determined.
+
+    Note: This only works on macOS
+    """
+    return os.environ.get("TERM_PROGRAM", "")