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, 8 insertions, 9 deletions

diff --git a/numpy/distutils/fcompiler/ibm.py b/numpy/distutils/fcompiler/ibm.py
index c4cb2fca7..70d2132e1 100644
--- a/numpy/distutils/fcompiler/ibm.py
+++ b/numpy/distutils/fcompiler/ibm.py
@@ -78,15 +78,14 @@ class IBMFCompiler(FCompiler):
                 xlf_cfg = '/etc/opt/ibmcmp/xlf/%s/xlf.cfg' % version
             fo, new_cfg = make_temp_file(suffix='_xlf.cfg')
             log.info('Creating '+new_cfg)
-            fi = open(xlf_cfg, 'r')
-            crt1_match = re.compile(r'\s*crt\s*[=]\s*(?P<path>.*)/crt1.o').match
-            for line in fi:
-                m = crt1_match(line)
-                if m:
-                    fo.write('crt = %s/bundle1.o\n' % (m.group('path')))
-                else:
-                    fo.write(line)
-            fi.close()
+            with open(xlf_cfg, 'r') as fi:
+                crt1_match = re.compile(r'\s*crt\s*[=]\s*(?P<path>.*)/crt1.o').match
+                for line in fi:
+                    m = crt1_match(line)
+                    if m:
+                        fo.write('crt = %s/bundle1.o\n' % (m.group('path')))
+                    else:
+                        fo.write(line)
             fo.close()
             opt.append('-F'+new_cfg)
         return opt