您可以尝试使用以下代码等待直到出现新窗口：
WebDriverWait(driver, 20).until(EC.number_of_windows_to_be(2))
您的代码应如下所示
Button.click()WebDriverWait(driver, 20).until(EC.number_of_windows_to_be(2))newWindow = driver.window_handlesnewNewWindow = newWindow[1]driver.switch_to.window(newNewWindow)
考虑到@JimEvans评论，请尝试以下操作：
current = driver.window_handles[0]Button.click()WebDriverWait(driver, 20).until(EC.number_of_windows_to_be(2))newWindow = [window for window in driver.window_handles if window != current][0]driver.switch_to.window(newWindow)
