From 3a8be8c6248fcb959a18417df3ea2d5370f66689 Mon Sep 17 00:00:00 2001 From: Eddie Hebert Date: Thu, 21 Jan 2016 11:10:07 -0500 Subject: [PATCH] BUG: Need to be able to append to minute ctable. --- zipline/data/minute_bars.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/zipline/data/minute_bars.py b/zipline/data/minute_bars.py index cd0dd4bd..0d19a425 100644 --- a/zipline/data/minute_bars.py +++ b/zipline/data/minute_bars.py @@ -331,7 +331,7 @@ class BcolzMinuteBarWriter(object): sidpath = self.sidpath(sid) if not os.path.exists(sidpath): return self._init_ctable(sidpath) - return bcolz.ctable(rootdir=sidpath, mode='r') + return bcolz.ctable(rootdir=sidpath, mode='a') def _zerofill(self, table, numdays): num_to_prepend = numdays * self._minutes_per_day