[Python-Dev] open('/dev/null').read() -> MemoryError (original) (raw)

Armin Rigo arigo at tunes.org
Tue Sep 28 11:37:58 CEST 2004


Hi Bob,

On Mon, Sep 27, 2004 at 04:21:03PM -0400, Bob Ippolito wrote:

file(path).read() is never really a good idea in the general case - especially for a device node.

In other words, it sounds like the test should be fixed, not the implementation.

Sounds good. Does anyone object to the following patch?

Index: test_os.py

RCS file: /cvsroot/python/python/dist/src/Lib/test/test_os.py,v retrieving revision 1.27 diff -c -r1.27 test_os.py *** test_os.py 29 Aug 2004 18:47:31 -0000 1.27 --- test_os.py 28 Sep 2004 09:42:26 -0000


*** 340,346 **** f.write('hello') f.close() f = file(os.devnull, 'r') ! self.assertEqual(f.read(), '') f.close()

class URandomTests (unittest.TestCase): --- 340,351 ---- f.write('hello') f.close() f = file(os.devnull, 'r') ! self.assertEqual(f.read(1), '') ! self.assertEqual(f.read(10), '') ! self.assertEqual(f.read(100), '') ! self.assertEqual(f.read(1000), '') ! self.assertEqual(f.read(10000), '') ! self.assertEqual(f.read(100000), '') f.close()

class URandomTests (unittest.TestCase):

-+- Armin



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