From 8420fe984acb7b23e8feb4e5d6a0e4d3da5e4eb1 Mon Sep 17 00:00:00 2001
From: HappyTreeBeard <34220817+HappyTreeBeard@users.noreply.github.com>
Date: Thu, 23 May 2019 21:33:23 -0700
Subject: [PATCH] Fixed bug in unit test where temp file remained open when
 os.unlink was called (#832)

---
 pyqtgraph/exporters/tests/test_csv.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pyqtgraph/exporters/tests/test_csv.py b/pyqtgraph/exporters/tests/test_csv.py
index 15c6626e..d6da033b 100644
--- a/pyqtgraph/exporters/tests/test_csv.py
+++ b/pyqtgraph/exporters/tests/test_csv.py
@@ -1,5 +1,5 @@
 """
-SVG export test
+CSV export test
 """
 from __future__ import division, print_function, absolute_import
 import pyqtgraph as pg
@@ -33,8 +33,9 @@ def test_CSVExporter():
     ex = pg.exporters.CSVExporter(plt.plotItem)
     ex.export(fileName=tempfilename)
 
-    r = csv.reader(open(tempfilename, 'r'))
-    lines = [line for line in r]
+    with open(tempfilename, 'r') as csv_file:
+        r = csv.reader(csv_file)
+        lines = [line for line in r]
     header = lines.pop(0)
     assert header == ['myPlot_x', 'myPlot_y', 'x0001', 'y0001', 'x0002', 'y0002']