blocks|key|2965680|text|你可以在Python+Rq中加入一个队列系统。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2965681|entityMap|0|LINK|mutability|MUTABLE|url|http://python-rq.org/docs/jobs/^0|4|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You could put a queue system in with <a href="http://python-rq.org/docs/jobs/" rel="nofollow">Python Rq</a>.

blocks|key|4433339|text|您可以在app.py中产生一个调用/cache调用并休眠24小时的线程。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4433340|entityMap^0|4|6|H|6|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

You could spawn a thread in <code>app.py</code> that calls a <code>/cache</code> call and sleeps for 24 hours.

blocks|key|919883|text|你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|919884|if+__name__+==+"__main__":

++++when_to_run+=+#+Set+first+run+datetime
++++time_to_wait+=+when_to_run+-+datetime.now()

++++while+True:
++++++++time.sleep(time_to_wait.seconds)
++++++++#+run+your+stuff+here

++++++++when_to_run+=+#+Set+next+run+datetime
++++++++time_to_wait+=+when_to_run+-+datetime.now()|code-block|syntax|javascript|919885|假设您希望每天上午10点运行此命令，您将when_to_run设置为今天上午10点运行，或者如果这已经是过去的时间，则设置为明天上午10点运行，并在循环中添加一天的时间增量。如果您只是设置为睡眠24小时，则执行时间将延迟到每次执行它所花费的时间。|919886|示例：|919887|每天下午1点运行东西：|919888|if+__name__+==+"__main__":

++++when_to_run+=+datetime.now().replace(hour=13,+minute=0,+second=0,+microsecond=0)
++++if+datetime.now()+>+when_to_run:
++++++++#+First+run+is+tomorrow
++++++++when_to_run+%2B=+timedelta(days=1)
++++time_to_wait+=+when_to_run+-+datetime.now()

++++while+True:
++++++++time.sleep(time_to_wait.seconds)

++++++++#+run+your+stuff+here
++++++++stuff.run()

++++++++when_to_run+%2B=+timedelta(days=1)
++++++++time_to_wait+=+when_to_run+-+datetime.now()|919889|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

You could do something like this:

<pre><code>if __name__ == "__main__":

 when_to_run = # Set first run datetime
 time_to_wait = when_to_run - datetime.now()

 while True:
 time.sleep(time_to_wait.seconds)
 # run your stuff here

 when_to_run = # Set next run datetime
 time_to_wait = when_to_run - datetime.now()
</code></pre>

Say you want this to run every day at 10 AM, you set when_to_run to today at 10 AM or if that's already in the past, tomorrow at 10 AM, and add a day with timedelta in the loop. If you just set to sleep for 24 hours, the time of execution will get delayed by the time it took to execute it each time.

Example:

Run stuff every day at 1 PM:

<pre><code>if __name__ == "__main__":

 when_to_run = datetime.now().replace(hour=13, minute=0, second=0, microsecond=0)
 if datetime.now() &gt; when_to_run:
 # First run is tomorrow
 when_to_run += timedelta(days=1)
 time_to_wait = when_to_run - datetime.now()

 while True:
 time.sleep(time_to_wait.seconds)

 # run your stuff here
 stuff.run()

 when_to_run += timedelta(days=1)
 time_to_wait = when_to_run - datetime.now()
</code></pre>

blocks|key|651172|text|我不确定这对于您的特定用例是否正确，但您可以在给定的时间段内缓存函数的结果：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|651173|import+functools
from+datetime+import+datetime,+timedelta

def+cache(delta):
++++if+not+hasattr(cache,+'results'):
++++++++cache.results+=+{}
++++++++cache.timeout+=+{}

++++def+decorator(function):
++++++++@functools.wraps(function)
++++++++def+inner(*args,+**kwargs):
++++++++++++key+=+repr((function,+args,+kwargs))

++++++++++++if+key+not+in+cache.results+or+cache.timeout[key]+<=+datetime.now():
++++++++++++++++cache.results[key]+=+function(*args,+**kwargs)
++++++++++++++++cache.timeout[key]+=+datetime.now()+%2B+delta

++++++++++++return+cache.results[key]

++++++++return+inner

++++return+decorator

@cache(timedelta(seconds=2))
def+f():
++++return+datetime.now()|code-block|syntax|javascript|651174|在相同的2秒间隔内调用两次f()将返回相同的结果。|offset|length|style|CODE|651175|entityMap^0|0|0|D|3|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I'm not sure if this is correct for your specific use case, but you could cache the result of the function for a given period of time:

<pre><code>import functools
from datetime import datetime, timedelta

def cache(delta):
 if not hasattr(cache, 'results'):
 cache.results = {}
 cache.timeout = {}

 def decorator(function):
 @functools.wraps(function)
 def inner(*args, **kwargs):
 key = repr((function, args, kwargs))

 if key not in cache.results or cache.timeout[key] &lt;= datetime.now():
 cache.results[key] = function(*args, **kwargs)
 cache.timeout[key] = datetime.now() + delta

 return cache.results[key]

 return inner

 return decorator

@cache(timedelta(seconds=2))
def f():
 return datetime.now()
</code></pre>

Calling <code>f()</code> twice within the same 2 second interval will return the same result.

I have a python flask application where I cache some data in memory when app.py runs.

There's a function call like this:

<pre><code>cache_data()
</code></pre>

I want this function to be ran once every night. Is there a way I can schedule the script to rerun by itself or just the function to be called whenever the date of current_date has changed?

<pre><code>if __name__ == "__main__":
 port = 80
 os.system("open http://localhost:{0}".format(port))

 app.debug = True # Turn False later
 app.run(host='0.0.0.0', port=port)
</code></pre>

How to re-run my python flask application every night?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我有一个python flask应用程序，当app.py运行时，我在内存中缓存一些数据。有一个函数调用，如下所示：cache_data()我想让这个函数每晚运行一次。有没有一种方法可以安排脚本自己重新运行，或者只在current_date的日期发生变化时调用函数？if __name__ == "__main__":  ...

问如何每晚重新运行我的python flask应用程序？
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何每晚重新运行我的python flask应用程序？EN