scanner: use open() as os.fdopen as context managers

Ensures files are correctly and immediately closed.

https://bugzilla.gnome.org/show_bug.cgi?id=751926

1 files changed, 9 insertions, 10 deletions

diff --git a/giscanner/gdumpparser.py b/giscanner/gdumpparser.py
index b49ceef1..179bbd83 100644
--- a/giscanner/gdumpparser.py
+++ b/giscanner/gdumpparser.py
@@ -145,16 +145,15 @@ class GDumpParser(object):
         """Load the library (or executable), returning an XML
 blob containing data gleaned from GObject's primitive introspection."""
         in_path = os.path.join(self._binary.tmpdir, 'functions.txt')
-        f = open(in_path, 'w')
-        for func in self._get_type_functions:
-            f.write('get-type:')
-            f.write(func)
-            f.write('\n')
-        for func in self._error_quark_functions:
-            f.write('error-quark:')
-            f.write(func)
-            f.write('\n')
-        f.close()
+        with open(in_path, 'w') as f:
+            for func in self._get_type_functions:
+                f.write('get-type:')
+                f.write(func)
+                f.write('\n')
+            for func in self._error_quark_functions:
+                f.write('error-quark:')
+                f.write(func)
+                f.write('\n')
         out_path = os.path.join(self._binary.tmpdir, 'dump.xml')
 
         args = []