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From: John Snow <jsnow@redhat.com>
To: Markus Armbruster <armbru@redhat.com>
Cc: Cleber Rosa <crosa@redhat.com>, John Snow <jsnow@redhat.com>,
	qemu-devel@nongnu.org, Eduardo Habkost <ehabkost@redhat.com>,
	Michael Roth <mdroth@linux.vnet.ibm.com>
Subject: [PATCH 03/26] qapi/parser.py: use 'with' statement for opening files
Date: Tue, 22 Sep 2020 18:35:02 -0400	[thread overview]
Message-ID: <20200922223525.4085762-4-jsnow@redhat.com> (raw)
In-Reply-To: <20200922223525.4085762-1-jsnow@redhat.com>

Minor, this prevents file descriptor leaks on error pathways.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 scripts/qapi/parser.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index b2984c8ff0..d0f35fe03e 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -64,8 +64,8 @@ def __init__(self, fname, previously_included=None, incl_info=None):
 
         # Showtime!
         try:
-            fp = open(self._fname, 'r', encoding='utf-8')
-            self.src = fp.read()
+            with open(self._fname, 'r', encoding='utf-8') as fp:
+                self.src = fp.read()
         except IOError as e:
             raise QAPISemError(incl_info or QAPISourceInfo(None, None, None),
                                "can't read %s file '%s': %s"
-- 
2.26.2



  parent reply	other threads:[~2020-09-22 22:37 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22 22:34 [PATCH 00/26] qapi: static typing conversion, pt5 John Snow
2020-09-22 22:35 ` [PATCH 01/26] qapi/parser.py: refactor parsing routine into method John Snow
2020-09-22 22:35 ` [PATCH 02/26] qapi/parser.py: group variable declarations in __init__ John Snow
2020-09-22 22:35 ` John Snow [this message]
2020-09-22 22:35 ` [PATCH 04/26] qapi/source.py: Add default arguments to QAPISourceInfo John Snow
2020-09-22 22:35 ` [PATCH 05/26] qapi/parser.py: start source info at line 0 John Snow
2020-09-22 22:35 ` [PATCH 06/26] qapi/parser.py: raise QAPIParseError during file opening John Snow
2020-09-22 22:35 ` [PATCH 07/26] qapi/parser.py: fully remove 'null' constant John Snow
2020-09-22 22:35 ` [PATCH 08/26] qapi/parser.py: Assert lexer value is a string John Snow
2020-09-22 22:35 ` [PATCH 09/26] qapi/parser.py: assert get_expr returns object in outer loop John Snow
2020-09-22 22:35 ` [PATCH 10/26] qapi/parser.py: assert object keys are strings John Snow
2020-09-22 22:35 ` [PATCH 11/26] qapi/parser.py: Convert several methods to @classmethod John Snow
2020-09-22 22:35 ` [PATCH 12/26] qapi/parser.py: add casts to pragma checks John Snow
2020-09-22 22:35 ` [PATCH 13/26] qapi/parser.py: add type hint annotations John Snow
2020-09-22 22:35 ` [PATCH 14/26] qapi/parser.py: add docstrings John Snow
2020-09-22 22:35 ` [PATCH 15/26] qapi/parser.py: add ParsedExpression type John Snow
2020-09-22 22:35 ` [PATCH 16/26] qapi/pragma.py: Move QAPISchemaPragma into its own module John Snow
2020-09-22 22:35 ` [PATCH 17/26] qapi/pragma.py: Move pragma parsing out of parser.py John Snow
2020-09-22 22:35 ` [PATCH 18/26] qapi/parser.py: Modify _include() to use parser state John Snow
2020-09-22 22:35 ` [PATCH 19/26] qapi/parser.py: add parent argument John Snow
2020-09-22 22:35 ` [PATCH 20/26] qapi/parser.py: remove unused check_args_section arguments John Snow
2020-09-22 22:35 ` [PATCH 21/26] qapi/parser.py: QAPIDoc: convert @staticmethod to @classmethod John Snow
2020-09-22 22:35 ` [PATCH 22/26] qapi/parser.py: add type hint annotations (QAPIDoc) John Snow
2020-09-22 22:35 ` [PATCH 23/26] qapi/parser.py: enable mypy checks John Snow
2020-09-22 22:35 ` [PATCH 24/26] qapi/parser.py: remove one and two-letter variables John Snow
2020-09-22 22:35 ` [PATCH 25/26] qapi/parser.py: Silence too-few-public-methods warning John Snow
2020-09-22 22:35 ` [PATCH 26/26] qapi/parser.py: enable pylint checks John Snow
2020-09-22 22:54 ` [PATCH 00/26] qapi: static typing conversion, pt5 John Snow

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