Issue #12955: Change the urlopen() examples to use context managers where appropriate.

Patch by Martin Panter.

1 files changed, 2 insertions, 2 deletions

diff --git a/Doc/library/concurrent.futures.rst b/Doc/library/concurrent.futures.rst
index c177340..11b3916 100644
--- a/Doc/library/concurrent.futures.rst
+++ b/Doc/library/concurrent.futures.rst
@@ -155,8 +155,8 @@ ThreadPoolExecutor Example
 
    # Retrieve a single page and report the url and contents
    def load_url(url, timeout):
-       conn = urllib.request.urlopen(url, timeout=timeout)
-       return conn.readall()
+       with urllib.request.urlopen(url, timeout=timeout) as conn:
+           return conn.read()
 
    # We can use a with statement to ensure threads are cleaned up promptly
    with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor: