Fix ResourceWarning for unclosed files (from os.popen)
diff --git a/Lib/uuid.py b/Lib/uuid.py
index 6e687943..df51464 100644
--- a/Lib/uuid.py
+++ b/Lib/uuid.py
@@ -322,15 +322,15 @@
# LC_ALL to get English output, 2>/dev/null to
# prevent output on stderr
cmd = 'LC_ALL=C %s %s 2>/dev/null' % (executable, args)
- pipe = os.popen(cmd)
+ with os.popen(cmd) as pipe:
+ for line in pipe:
+ words = line.lower().split()
+ for i in range(len(words)):
+ if words[i] in hw_identifiers:
+ return int(
+ words[get_index(i)].replace(':', ''), 16)
except IOError:
continue
-
- for line in pipe:
- words = line.lower().split()
- for i in range(len(words)):
- if words[i] in hw_identifiers:
- return int(words[get_index(i)].replace(':', ''), 16)
return None
def _ifconfig_getnode():