bpo-22831: Use "with" to avoid possible fd leaks in distutils. (GH-10921)

1 files changed, 17 insertions, 19 deletions

diff --git a/Lib/distutils/command/config.py b/Lib/distutils/command/config.py
index 4ae153d194..f511b88857 100644
--- a/Lib/distutils/command/config.py
+++ b/Lib/distutils/command/config.py
@@ -106,15 +106,14 @@ class config(Command):
 
     def _gen_temp_sourcefile(self, body, headers, lang):
         filename = "_configtest" + LANG_EXT[lang]
-        file = open(filename, "w")
-        if headers:
-            for header in headers:
-                file.write("#include <%s>\n" % header)
-            file.write("\n")
-        file.write(body)
-        if body[-1] != "\n":
-            file.write("\n")
-        file.close()
+        with open(filename, "w") as file:
+            if headers:
+                for header in headers:
+                    file.write("#include <%s>\n" % header)
+                file.write("\n")
+            file.write(body)
+            if body[-1] != "\n":
+                file.write("\n")
         return filename
 
     def _preprocess(self, body, headers, include_dirs, lang):
@@ -203,17 +202,16 @@ class config(Command):
         if isinstance(pattern, str):
             pattern = re.compile(pattern)
 
-        file = open(out)
-        match = False
-        while True:
-            line = file.readline()
-            if line == '':
-                break
-            if pattern.search(line):
-                match = True
-                break
+        with open(out) as file:
+            match = False
+            while True:
+                line = file.readline()
+                if line == '':
+                    break
+                if pattern.search(line):
+                    match = True
+                    break
 
-        file.close()
         self._clean()
         return match