Process list of async tasks immediately upon each task's completion












0















How can I process the results of a list of async tasks immediately as a task is completed?



For instance, the following should display whichever page loads first:



urls = ['stackoverflow.com', 'google.com']
tasks = [asyncio.create_task(fetch_page(x)) for x in urls]

for page in asyncio.give_me_results_ASAP(tasks):
print(page.url)


Since google loads faster, I'd like it to print:



google.com
stackoverflow.com









share|improve this question























  • may be simple way is to add the print inside fetch page?

    – Bear Brown
    Nov 22 '18 at 6:24











  • Can you explain your priorities a bit more? Is the order the most important thing to you, or the immediacy? If the immediacy is the primary goal, why is it the goal? Would you be open to solutions that get the work done faster even if they sacrifice ordering?

    – user2357112
    Nov 22 '18 at 6:27











  • @BearBrown That's a good point. Though I suppose I had some sort of asynchronous iterator in mind. (That way, I can tee out the results in a thread-safe manner but also process them immediately.)

    – Mateen Ulhaq
    Nov 22 '18 at 6:27













  • @user2357112 Immediacy. Ordering doesn't matter.

    – Mateen Ulhaq
    Nov 22 '18 at 6:28
















0















How can I process the results of a list of async tasks immediately as a task is completed?



For instance, the following should display whichever page loads first:



urls = ['stackoverflow.com', 'google.com']
tasks = [asyncio.create_task(fetch_page(x)) for x in urls]

for page in asyncio.give_me_results_ASAP(tasks):
print(page.url)


Since google loads faster, I'd like it to print:



google.com
stackoverflow.com









share|improve this question























  • may be simple way is to add the print inside fetch page?

    – Bear Brown
    Nov 22 '18 at 6:24











  • Can you explain your priorities a bit more? Is the order the most important thing to you, or the immediacy? If the immediacy is the primary goal, why is it the goal? Would you be open to solutions that get the work done faster even if they sacrifice ordering?

    – user2357112
    Nov 22 '18 at 6:27











  • @BearBrown That's a good point. Though I suppose I had some sort of asynchronous iterator in mind. (That way, I can tee out the results in a thread-safe manner but also process them immediately.)

    – Mateen Ulhaq
    Nov 22 '18 at 6:27













  • @user2357112 Immediacy. Ordering doesn't matter.

    – Mateen Ulhaq
    Nov 22 '18 at 6:28














0












0








0








How can I process the results of a list of async tasks immediately as a task is completed?



For instance, the following should display whichever page loads first:



urls = ['stackoverflow.com', 'google.com']
tasks = [asyncio.create_task(fetch_page(x)) for x in urls]

for page in asyncio.give_me_results_ASAP(tasks):
print(page.url)


Since google loads faster, I'd like it to print:



google.com
stackoverflow.com









share|improve this question














How can I process the results of a list of async tasks immediately as a task is completed?



For instance, the following should display whichever page loads first:



urls = ['stackoverflow.com', 'google.com']
tasks = [asyncio.create_task(fetch_page(x)) for x in urls]

for page in asyncio.give_me_results_ASAP(tasks):
print(page.url)


Since google loads faster, I'd like it to print:



google.com
stackoverflow.com






python asynchronous






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 22 '18 at 6:23









Mateen UlhaqMateen Ulhaq

11.5k114793




11.5k114793













  • may be simple way is to add the print inside fetch page?

    – Bear Brown
    Nov 22 '18 at 6:24











  • Can you explain your priorities a bit more? Is the order the most important thing to you, or the immediacy? If the immediacy is the primary goal, why is it the goal? Would you be open to solutions that get the work done faster even if they sacrifice ordering?

    – user2357112
    Nov 22 '18 at 6:27











  • @BearBrown That's a good point. Though I suppose I had some sort of asynchronous iterator in mind. (That way, I can tee out the results in a thread-safe manner but also process them immediately.)

    – Mateen Ulhaq
    Nov 22 '18 at 6:27













  • @user2357112 Immediacy. Ordering doesn't matter.

    – Mateen Ulhaq
    Nov 22 '18 at 6:28



















  • may be simple way is to add the print inside fetch page?

    – Bear Brown
    Nov 22 '18 at 6:24











  • Can you explain your priorities a bit more? Is the order the most important thing to you, or the immediacy? If the immediacy is the primary goal, why is it the goal? Would you be open to solutions that get the work done faster even if they sacrifice ordering?

    – user2357112
    Nov 22 '18 at 6:27











  • @BearBrown That's a good point. Though I suppose I had some sort of asynchronous iterator in mind. (That way, I can tee out the results in a thread-safe manner but also process them immediately.)

    – Mateen Ulhaq
    Nov 22 '18 at 6:27













  • @user2357112 Immediacy. Ordering doesn't matter.

    – Mateen Ulhaq
    Nov 22 '18 at 6:28

















may be simple way is to add the print inside fetch page?

– Bear Brown
Nov 22 '18 at 6:24





may be simple way is to add the print inside fetch page?

– Bear Brown
Nov 22 '18 at 6:24













Can you explain your priorities a bit more? Is the order the most important thing to you, or the immediacy? If the immediacy is the primary goal, why is it the goal? Would you be open to solutions that get the work done faster even if they sacrifice ordering?

– user2357112
Nov 22 '18 at 6:27





Can you explain your priorities a bit more? Is the order the most important thing to you, or the immediacy? If the immediacy is the primary goal, why is it the goal? Would you be open to solutions that get the work done faster even if they sacrifice ordering?

– user2357112
Nov 22 '18 at 6:27













@BearBrown That's a good point. Though I suppose I had some sort of asynchronous iterator in mind. (That way, I can tee out the results in a thread-safe manner but also process them immediately.)

– Mateen Ulhaq
Nov 22 '18 at 6:27







@BearBrown That's a good point. Though I suppose I had some sort of asynchronous iterator in mind. (That way, I can tee out the results in a thread-safe manner but also process them immediately.)

– Mateen Ulhaq
Nov 22 '18 at 6:27















@user2357112 Immediacy. Ordering doesn't matter.

– Mateen Ulhaq
Nov 22 '18 at 6:28





@user2357112 Immediacy. Ordering doesn't matter.

– Mateen Ulhaq
Nov 22 '18 at 6:28












0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53424973%2fprocess-list-of-async-tasks-immediately-upon-each-tasks-completion%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53424973%2fprocess-list-of-async-tasks-immediately-upon-each-tasks-completion%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

"Incorrect syntax near the keyword 'ON'. (on update cascade, on delete cascade,)

Alcedinidae

Origin of the phrase “under your belt”?