From a74f3930d9e8b78b722cba3feb9839ba342f04a5 Mon Sep 17 00:00:00 2001 From: jocelynshen Date: Mon, 11 Dec 2017 19:13:30 -0500 Subject: [PATCH] Update parsers.py --- pandas/io/parsers.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/pandas/io/parsers.py b/pandas/io/parsers.py index 927edbf236366..ff7c4972bc502 100755 --- a/pandas/io/parsers.py +++ b/pandas/io/parsers.py @@ -108,6 +108,8 @@ example of a valid callable argument would be ``lambda x: x.upper() in ['AAA', 'BBB', 'DDD']``. Using this parameter results in much faster parsing time and lower memory usage. + Note that indexes in usecols is automatically sorted in ascending order. (ie. [1,0] + will return same dataframe as [0,1] using indexes) as_recarray : boolean, default False .. deprecated:: 0.19.0 Please call `pd.read_csv(...).to_records()` instead.