A dict comprehension is much prettier (thanks Antoine)
diff --git a/Doc/library/concurrent.futures.rst b/Doc/library/concurrent.futures.rst
index 70b0fd1..62d8eac 100644
--- a/Doc/library/concurrent.futures.rst
+++ b/Doc/library/concurrent.futures.rst
@@ -144,11 +144,9 @@
# We can use a with statement to ensure threads are cleaned up promptly
with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
# Start the load operations and mark each future with its URL
- load_urls = [executor.submit(load_url, url, 60) for url in URLS]
- for future, url in zip(load_urls, URLS):
- future.url = url
- for future in concurrent.futures.as_completed(load_urls):
- url = future.url
+ future_to_url = {executor.submit(load_url, url, 60):url for url in URLS}
+ for future in concurrent.futures.as_completed(future_to_url):
+ url = future_to_url[url]
try:
data = future.result()
except Exception as exc: