#15932: use with statement in csv doc examples.

Doc/library/csv.rst

@@ -78,9 +78,10 @@ The :mod:`csv` module defines the following functions:
    A short usage example::
 
       >>> import csv
-      >>> spamReader = csv.reader(open('eggs.csv', 'rb'), delimiter=' ', quotechar='|')
-      >>> for row in spamReader:
-      ...     print ', '.join(row)
+      >>> with open('eggs.csv', 'rb') as csvfile:
+      ...     spamreader = csv.reader(csvfile, delimiter=' ', quotechar='|')
+      ...     for row in spamreader:
+      ...         print ', '.join(row)
       Spam, Spam, Spam, Spam, Spam, Baked Beans
       Spam, Lovely Spam, Wonderful Spam
 
@@ -115,11 +116,12 @@ The :mod:`csv` module defines the following functions:
 
    A short usage example::
 
-      >>> import csv
-      >>> spamWriter = csv.writer(open('eggs.csv', 'wb'), delimiter=' ',
-      ...                         quotechar='|', quoting=csv.QUOTE_MINIMAL)
-      >>> spamWriter.writerow(['Spam'] * 5 + ['Baked Beans'])
-      >>> spamWriter.writerow(['Spam', 'Lovely Spam', 'Wonderful Spam'])
+      import csv
+      with open('eggs.csv', 'wb') as csvfile:
+          spamwriter = csv.writer(csvfile, delimiter=' ',
+                                  quotechar='|', quoting=csv.QUOTE_MINIMAL)
+          spamwriter.writerow(['Spam'] * 5 + ['Baked Beans'])
+          spamwriter.writerow(['Spam', 'Lovely Spam', 'Wonderful Spam'])
 
 
 .. function:: register_dialect(name[, dialect], **fmtparams)
@@ -234,11 +236,11 @@ The :mod:`csv` module defines the following classes:
 
 An example for :class:`Sniffer` use::
 
-   csvfile = open("example.csv", "rb")
-   dialect = csv.Sniffer().sniff(csvfile.read(1024))
-   csvfile.seek(0)
-   reader = csv.reader(csvfile, dialect)
-   # ... process CSV file contents here ...
+   with open('example.csv', 'rb') as csvfile:
+       dialect = csv.Sniffer().sniff(csvfile.read(1024))
+       csvfile.seek(0)
+       reader = csv.reader(csvfile, dialect)
+       # ... process CSV file contents here ...
 
 
 The :mod:`csv` module defines the following constants: