\begin{verbatim}
import csv
-reader = csv.reader(file("some.csv", "rb"))
+reader = csv.reader(open("some.csv", "rb"))
for row in reader:
print row
\end{verbatim}
\begin{verbatim}
import csv
-reader = csv.reader(file("some.csv", "rb"))
+reader = csv.reader(open("some.csv", "rb"))
for row in reader:
print row[0], row[-1]
\end{verbatim}
\begin{verbatim}
import csv
-writer = csv.writer(file("some.csv", "wb"))
+writer = csv.writer(open("some.csv", "wb"))
for row in someiterable:
writer.writerow(row)
\end{verbatim}