如何在任务完成后立即处理async个任务列表的结果？
例如，以下内容应显示首先加载的页面：
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)
由于google加载速度更快，我希望它可以打印：
google.com
stackoverflow.com
答案 0 :(得分：1)
asyncio.as_completed正是为此而设计的，并按任务完成的顺序返回协程的迭代器。从迭代器返回的第一个协程将与完成的第一个任务相对应，您可以在每个协程上<IfModule mod_php5.c>
php_flag engine 0
</IfModule>
<IfModule mod_php7.c>
php_flag engine 0
</IfModule>
# To avoid situation when web server automatically adds extension to path
Options -MultiViews
<IfModule mod_rewrite.c>
RewriteEngine On
## you can put here your pub/static folder path relative to web root
#RewriteBase /magento/pub/static/
# Remove signature of the static files that is used to overcome the browser cache
RewriteRule ^version.+?/(.+)$ $1 [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule .* ../static.php?resource=$0 [L]
# Detects if moxieplayer request with uri params and redirects to uri without params
<Files moxieplayer.swf>
RewriteCond %{QUERY_STRING} !^$
RewriteRule ^(.*)$ %{REQUEST_URI}? [R=301,L]
</Files>
</IfModule>
############################################
## setting MIME types
# JavaScript
AddType application/javascript js jsonp
AddType application/json json
# HTML
AddType text/html html
# CSS
AddType text/css css
# Images and icons
AddType image/x-icon ico
AddType image/gif gif
AddType image/png png
AddType image/jpeg jpg
AddType image/jpeg jpeg
# SVG
AddType image/svg+xml svg
# Fonts
AddType application/vnd.ms-fontobject eot
AddType application/x-font-ttf ttf
AddType application/x-font-otf otf
AddType application/x-font-woff woff
AddType application/font-woff2 woff2
# Flash
AddType application/x-shockwave-flash swf
# Archives and exports
AddType application/zip gzip
AddType application/x-gzip gz gzip
AddType application/x-bzip2 bz2
AddType text/csv csv
AddType application/xml xml
<IfModule mod_headers.c>
<FilesMatch .*\.(ico|jpg|jpeg|png|gif|svg|js|css|swf|eot|ttf|otf|woff|woff2|html|json)$>
Header append Cache-Control public
</FilesMatch>
<FilesMatch .*\.(zip|gz|gzip|bz2|csv|xml)$>
Header append Cache-Control no-store
</FilesMatch>
</IfModule>
<IfModule mod_expires.c>
############################################
## Add default Expires header
## http://developer.yahoo.com/performance/rules.html#expires
ExpiresActive On
# Data
<FilesMatch \.(zip|gz|gzip|bz2|csv|xml)$>
ExpiresDefault "access plus 0 seconds"
</FilesMatch>
ExpiresByType text/xml "access plus 0 seconds"
ExpiresByType text/csv "access plus 0 seconds"
ExpiresByType application/json "access plus 0 seconds"
ExpiresByType application/zip "access plus 0 seconds"
ExpiresByType application/x-gzip "access plus 0 seconds"
ExpiresByType application/x-bzip2 "access plus 0 seconds"
# CSS, JavaScript, html
<FilesMatch \.(css|js|html|json)$>
ExpiresDefault "access plus 1 year"
</FilesMatch>
ExpiresByType text/css "access plus 1 year"
ExpiresByType text/html "access plus 1 year"
ExpiresByType application/javascript "access plus 1 year"
ExpiresByType application/json "access plus 1 year"
# Favicon, images, flash
<FilesMatch \.(ico|gif|png|jpg|jpeg|swf|svg)$>
ExpiresDefault "access plus 1 year"
</FilesMatch>
ExpiresByType image/gif "access plus 1 year"
ExpiresByType image/png "access plus 1 year"
ExpiresByType image/jpg "access plus 1 year"
ExpiresByType image/jpeg "access plus 1 year"
ExpiresByType image/svg+xml "access plus 1 year"
# Fonts
<FilesMatch \.(eot|ttf|otf|svg|woff|woff2)$>
ExpiresDefault "access plus 1 year"
</FilesMatch>
ExpiresByType application/vnd.ms-fontobject "access plus 1 year"
ExpiresByType application/x-font-ttf "access plus 1 year"
ExpiresByType application/x-font-otf "access plus 1 year"
ExpiresByType application/x-font-woff "access plus 1 year"
ExpiresByType application/font-woff2 "access plus 1 year"
</IfModule>
来获取任务的结果。
await产生：
# With Python 3.8+
import asyncio
import time
async def fetch_page(url):
reponse_time = 0.1 if url == 'google.com' else 0.8
await asyncio.sleep(reponse_time)
return url
async def main():
urls = ['stackoverflow.com', 'google.com']
tasks = [asyncio.create_task(fetch_page(x)) for x in urls]
for coro in asyncio.as_completed(tasks):
print(f"{time.time():.3f}", await coro)
if __name__ == '__main__':
asyncio.run(main())