Macbook / 蘋果系統寫代碼出現顯示問題

當使用Mac系統，在寫代碼的時候，如果是有一個GUI顯示界面，然后你又去點擊這個界面。此時，將報錯。
我的源代碼，是讀取圖片，顯示圖片。

import cv2 as cv
pic = cv.imread("test.jpeg")
dst = cv.resize(pic, (512, 512))
cv.imshow("This is the test pic!", dst)
cv.waitKey(5000)

報錯信息如下：

2021-01-10 19:54:02.332 python[8857:163844] _TIPropertyValueIsValid called with 4 on nil context!
2021-01-10 19:54:02.332 python[8857:163844] imkxpc_getApplicationProperty:reply: called with incorrect property value 4, bailing.
2021-01-10 19:54:02.332 python[8857:163844] Text input context does not respond to _valueForTIProperty:
2021-01-10 19:54:02.334 python[8857:163844] _TIPropertyValueIsValid called with 4 on nil context!
2021-01-10 19:54:02.334 python[8857:163844] imkxpc_getApplicationProperty:reply: called with incorrect property value 4, bailing.
2021-01-10 19:54:02.334 python[8857:163844] Text input context does not respond to _valueForTIProperty:
2021-01-10 19:54:02.344 python[8857:163844] _TIPropertyValueIsValid called with 4 on nil context!
2021-01-10 19:54:02.344 python[8857:163844] imkxpc_getApplicationProperty:reply: called with incorrect property value 4, bailing.
2021-01-10 19:54:02.344 python[8857:163844] Text input context does not respond to _valueForTIProperty:
2021-01-10 19:54:04.070 python[8857:163844] _TIPropertyValueIsValid called with 4 on nil context!
2021-01-10 19:54:04.070 python[8857:163844] imkxpc_getApplicationProperty:reply: called with incorrect property value 4, bailing.
2021-01-10 19:54:04.070 python[8857:163844] Text input context does not respond to _valueForTIProperty:
2021-01-10 19:54:04.087 python[8857:163844] _TIPropertyValueIsValid called with 4 on nil context!
2021-01-10 19:54:04.087 python[8857:163844] imkxpc_getApplicationProperty:reply: called with incorrect property value 4, bailing.
2021-01-10 19:54:04.087 python[8857:163844] Text input context does not respond to _valueForTIProperty:

報錯的主要信息是：
2021-01-10 19:54:04.087 python[8857:163844] Text input context does not respond to _valueForTIProperty:

這表明你現在的輸入法，是中文，然后點擊這個GUI，就出現這個錯誤。需要將你的輸入法切換成英文輸入即可解決這個問題。

下面是英文的回答：

This problem is not related to the Swift code at all. I code the Swift application with Japanese input source on macOS because my keyboard layout is Japanese, hence the error messages are shown on Terminal/console when the application window get/lost focus.
Changing the Input Sources to English - ABC solves the problem. You can change the Input Sources from macOS System Preferences - Keyboard. Add or change the Input Source to English - ABC from Input Sources tab.

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