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author | Berker Peksag <berker.peksag@gmail.com> | 2015-04-12 10:53:33 (GMT) |
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committer | Berker Peksag <berker.peksag@gmail.com> | 2015-04-12 10:53:33 (GMT) |
commit | 556e08e9b2016121e0984039c7087f52ba064297 (patch) | |
tree | 0c3dcc73147a7887a12a9d3ac75c9213fc12c914 /Doc/howto | |
parent | 48a724fa33143bcbab2228058d3f59e1813bd49c (diff) | |
parent | 9575e1891ff533318f6dd72ab6f6bd0f9a042014 (diff) | |
download | cpython-556e08e9b2016121e0984039c7087f52ba064297.zip cpython-556e08e9b2016121e0984039c7087f52ba064297.tar.gz cpython-556e08e9b2016121e0984039c7087f52ba064297.tar.bz2 |
Issue #12955: Change the urlopen() examples to use context managers where appropriate.
Patch by Martin Panter.
Diffstat (limited to 'Doc/howto')
-rw-r--r-- | Doc/howto/urllib2.rst | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst index abec053..01ae513 100644 --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -53,8 +53,8 @@ Fetching URLs The simplest way to use urllib.request is as follows:: import urllib.request - response = urllib.request.urlopen('http://python.org/') - html = response.read() + with urllib.request.urlopen('http://python.org/') as response: + html = response.read() If you wish to retrieve a resource via URL and store it in a temporary location, you can do so via the :func:`~urllib.request.urlretrieve` function:: @@ -79,8 +79,8 @@ response:: import urllib.request req = urllib.request.Request('http://www.voidspace.org.uk') - response = urllib.request.urlopen(req) - the_page = response.read() + with urllib.request.urlopen(req) as response: + the_page = response.read() Note that urllib.request makes use of the same Request interface to handle all URL schemes. For example, you can make an FTP request like so:: @@ -117,8 +117,8 @@ library. :: data = urllib.parse.urlencode(values) data = data.encode('utf-8') # data should be bytes req = urllib.request.Request(url, data) - response = urllib.request.urlopen(req) - the_page = response.read() + with urllib.request.urlopen(req) as response: + the_page = response.read() Note that other encodings are sometimes required (e.g. for file upload from HTML forms - see `HTML Specification, Form Submission @@ -183,8 +183,8 @@ Explorer [#]_. :: data = urllib.parse.urlencode(values) data = data.encode('utf-8') req = urllib.request.Request(url, data, headers) - response = urllib.request.urlopen(req) - the_page = response.read() + with urllib.request.urlopen(req) as response: + the_page = response.read() The response also has two useful methods. See the section on `info and geturl`_ which comes after we have a look at what happens when things go wrong. |