MAINT: Use with statements for opening files in distutils

Not super important, but saves some lines. Only the low-hanging ones here.

Found while tracking down an unrelated ResourceWarning

1 files changed, 9 insertions, 10 deletions

diff --git a/numpy/distutils/command/install.py b/numpy/distutils/command/install.py
index a1dd47755..c74ae9446 100644
--- a/numpy/distutils/command/install.py
+++ b/numpy/distutils/command/install.py
@@ -64,16 +64,15 @@ class install(old_install):
             # bdist_rpm fails when INSTALLED_FILES contains
             # paths with spaces. Such paths must be enclosed
             # with double-quotes.
-            f = open(self.record, 'r')
-            lines = []
-            need_rewrite = False
-            for l in f:
-                l = l.rstrip()
-                if ' ' in l:
-                    need_rewrite = True
-                    l = '"%s"' % (l)
-                lines.append(l)
-            f.close()
+            with open(self.record, 'r') as f:
+                lines = []
+                need_rewrite = False
+                for l in f:
+                    l = l.rstrip()
+                    if ' ' in l:
+                        need_rewrite = True
+                        l = '"%s"' % (l)
+                    lines.append(l)
             if need_rewrite:
                 self.execute(write_file,
                              (self.record, lines),