diff --git a/pandas/io/parsers.py b/pandas/io/parsers.py index d1e6e5677da0b..dd972150de0fe 100755 --- a/pandas/io/parsers.py +++ b/pandas/io/parsers.py @@ -86,7 +86,7 @@ class ParserWarning(Warning): should explicitly pass header=None prefix : string, default None Prefix to add to column numbers when no header, e.g 'X' for X0, X1, ... -na_values : list-like or dict, default None +na_values : str, list-like or dict, default None Additional strings to recognize as NA/NaN. If dict passed, specific per-column NA values true_values : list