result is None: pass print(*job.result) 我们在这里看到Python-RQ是怎么工作的。我们需要连接Redis服务器(HOST2),然后将新建的连接对象传递给Queue类构造器。结果Queue对象用来向其提交任务请求。这是通过传递函数对象和其它参数给queue.enqueue。 函数排队调用的结果是job实例,它是个异步调用占位符,之前见过多次。
next outer frame object (this frame’s caller) f_builtins builtins namespace seen by this frame f_code code object being executed in this frame f_exc_traceback traceback if raised in this frame, or None f_exc_type exception type if raised in this frame, or None f_exc_value exception...
Return sends a specified value back to its caller whereas Yield can produce a sequence of values. We should use yield when we want to iterate over a sequence, but don't want to store the entire sequence in memory. import sys # for example when reading a large file, we only care about...
defrun_query(sql:LiteralString):pass defcaller(arbitrary_string:str,literal_string:LiteralString)->None:run_query("SELECT * FROM students")# okrun_query(literal_string)# okrun_query("SELECT * FROM "+literal_string)# okrun_query(arbitrary_string)# type checker errorrun_query(# type checker ...
"" pass class ZTPErr(Exception): """ZTP error.""" pass def ztp_log(logStr, level): if g_ip_addr != None : slog.syslog(logStr, level, ops.SYSLOG) def get_addr_by_hostname(ops_conn, host, addr_type = '1'): """Translate a host name to IPv4 address format. The IPv4 ...
The void type, in several programming languages derived from C and Algol68, is the type for the result of a function that returns normally, but does not provide a result value to its caller. 在C、Algol68 及它们所派生的几种编程语言中,void 类型是函数正常返回的一种类型,但是不会给调用者返回...
Even though the parentheses seem to work in the scenario described in the above example, it’s not a recommended practice. You can end up shooting yourself in the foot.Remove ads The AssertionError Exception If the condition of an assert statement evaluates to false, then assert raises an ...
...pass The last except clause may omit the exception name(s), to serve as a wildcard. Use this with extreme caution, since it is easy to mask a real programming error in this way! It can also be used to print an error message and then re-raise the exception (allowing a caller ...
Python 分布式计算(一) 零、序言 (Distributed Computing with Python) 序言 第 1 章 并行和分布式计算介绍 第 2 章 异步编程 第 3 章 Python 的并行计算 第 4 章 Celery 分布式应用 第 5 章 云平台部署 Python 第 6 章
14. 例外报告框 exceptionbox exceptionbox(msg=None, title=None) Display a box that gives information about an exception that has just been raised. The caller may optionally pass in a title for the window, or a msg to accompany the error information. ...