Note that csv files (when they are actual files) must be opened in 'b'inary
mode. Note that the only restriction on the csvfile passed to writer
objects is that it have a write method.
diff --git a/Doc/lib/libcsv.tex b/Doc/lib/libcsv.tex
index ca27441..f585013 100644
--- a/Doc/lib/libcsv.tex
+++ b/Doc/lib/libcsv.tex
@@ -54,7 +54,9 @@
Return a reader object which will iterate over lines in the given
{}\var{csvfile}. \var{csvfile} can be any object which supports the
iterator protocol and returns a string each time its \method{next}
-method is called. An optional \var{dialect} parameter can be given
+method is called. If \var{csvfile} is a file object, it must be opened with
+the 'b' flag on platforms where that makes a difference. An optional
+{}\var{dialect} parameter can be given
which is used to define a set of parameters specific to a particular CSV
dialect. It may be an instance of a subclass of the \class{Dialect}
class or one of the strings returned by the \function{list_dialects}
@@ -71,7 +73,10 @@
\begin{funcdesc}{writer}{csvfile\optional{,
dialect=\code{'excel'}\optional{, fmtparam}}}
Return a writer object responsible for converting the user's data into
-delimited strings on the given file-like object. An optional
+delimited strings on the given file-like object. \var{csvfile} can be any
+object with a \function{write} method. If \var{csvfile} is a file object,
+it must be opened with the 'b' flag on platforms where that makes a
+difference. An optional
{}\var{dialect} parameter can be given which is used to define a set of
parameters specific to a particular CSV dialect. It may be an instance
of a subclass of the \class{Dialect} class or one of the strings
@@ -125,7 +130,7 @@
added as a sequence keyed by the value of \var{restkey}. If the row read
has fewer fields than the fieldnames sequence, the remaining keys take the
value of the optiona \var{restval} parameter. All other parameters are
-interpreted as for regular readers.
+interpreted as for \class{reader} objects.
\end{classdesc}
@@ -143,7 +148,7 @@
\var{extrasaction} parameter indicates what action to take. If it is set
to \code{'raise'} a \exception{ValueError} is raised. If it is set to
\code{'ignore'}, extra values in the dictionary are ignored. All other
-parameters are interpreted as for regular writers.
+parameters are interpreted as for \class{writer} objects.
\end{classdesc}
\begin{classdesc*}{Dialect}{}