Question

我正在使用我分叉，修改和现在正在调试的python gui应用程序（对于自定义游戏控制器，如果您必须知道的话）。该应用程序启动一个子进程来处理与arduino的通信，该子进程启动各种功能来处理特定的操作。我试图在特定函数中内置TimeoutError异常，以便为我提供有关arduino无法响应的过程的更多信息，但是异常似乎没有得到适当的处理（请阅读：我没有知道该怎么做）。这是对函数的调用（仍在子进程中）：

# STATE = Perform CNIA
if n_program_state == 4:
    mQ.put((0, 'Starting CNIA...'))
    try:
        cnia(ser, conn, vessel) #This is the function that should raise the TimeoutError
    except TimeoutError:
        mq.put((1,'exception raised'))
        mq.put((1, ' '.join(err.args)))
        time.sleep(5)
        pass
    mQ.put((0, 'CNIA Complete'))
    n_program_state = 5

这些是cnia函数的前几行，我在其中添加了一个伪造的timeouterror：

def cnia(ser, conn, vessel):
    f_cnia_repeat = True
    raise TimeoutError("clnr: fake timeout2")
    ...

当我运行程序并触发子进程时，消息队列会扩展到“正在启动CNIA”，然后子进程挂起。我希望它会引发异常，然后打印我指定的错误消息-我缺少什么？原作者声称没有专业知识，对模糊代码表示歉意，而且我可能会更糟。

Answer 1

我不太了解您的代码，但是我在这里可以解释的是，您甚至都没有接触过casper.options.verbose = true; // verbose reporting casper.options.logLevel = 'debug'; // full log reporting casper.options.exitOnError = false; // Keep going on error const google_email = "EMAIL"; const google_passwd = "PASSWORD"; const loginUrl = 'https://accounts.google.com'; // Load the login page casper.start(loginUrl, function() { this.waitForSelector('#view_container'); // '> form' doesn't seem to work }); // Fill in the 'username' form casper.then(function() { this.fill('form', { identifier: google_email, }); this.sendKeys('#view_container', casper.page.event.key.Enter , {keepFocus: true}); }); // First 'Enter' is too quick for Google, send another one after a pause casper.wait(2500, function() { this.sendKeys('#identifierId', casper.page.event.key.Enter , {keepFocus: true}); }); // Wait for the 'password' form casper.waitForSelector("#passwordNext", function() { this.echo("password form is apparently available"); }); // Password form seems to load slowly, even if the selector is found/visible, this delay ensures next form fill works casper.wait(2500, function() { this.echo("password form is really available"); }); // Fill in the 'password' form casper.then(function() { this.fill('form', { password: google_passwd, }); this.sendKeys('#view_container', casper.page.event.key.Enter , {keepFocus: true}); }); // First 'Enter' is too quick for Google, send another one after a pause casper.wait(500, function() { this.sendKeys('input.whsOnd.zHQkBf', casper.page.event.key.Enter , {keepFocus: true}); }); // Extend timeout to allow for slow dynamic page rendering casper.options.waitTimeout = 25000; casper.waitForSelector("#gb", function() { this.echo("login complete"); }); casper.thenOpen('https://(google app you want)', function() { // Check it opened okay });函数。尝试在cnia之前添加print，看看是否被调用

Answer 2

err.args可能正在创建未处理的异常。尝试添加err对象：except TimeoutError as err:

未引发Python异常

2 个答案: