Mailman 3 July 2011 - Python-checkins

cpython (merge 3.2 -> default): (merge 3.2) test_os: remove now useless TemporaryFileTests testcase
by victor.stinner July 1, 2011

July 1, 2011

http://hg.python.org/cpython/rev/23dc2be031ef changeset: 71109:23dc2be031ef parent: 71107:2aa2a7c25f2c parent: 71108:aa3a4614a6f3 user: Victor Stinner <victor.stinner(a)haypocalc.com> date: Fri Jul 01 13:47:03 2011 +0200 summary: (merge 3.2) test_os: remove now useless TemporaryFileTests testcase TemporaryFileTests has tests for os.tempnam() and os.tmpfile(), functions removed from Python 3. Move fdopen() tests to the FileTests testcase to test fdopen() on a file descriptor, not on a directory descriptor (which raises an error on Windows). files: Lib/test/test_os.py | 117 +------------------------------ 1 files changed, 6 insertions(+), 111 deletions(-) diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py --- a/Lib/test/test_os.py +++ b/Lib/test/test_os.py @@ -114,124 +114,20 @@ self.write_windows_console(sys.executable, "-c", code) self.write_windows_console(sys.executable, "-u", "-c", code) - -class TemporaryFileTests(unittest.TestCase): - def setUp(self): - self.files = [] - os.mkdir(support.TESTFN) - - def tearDown(self): - for name in self.files: - os.unlink(name) - os.rmdir(support.TESTFN) - - def check_tempfile(self, name): - # make sure it doesn't already exist: - self.assertFalse(os.path.exists(name), - "file already exists for temporary file") - # make sure we can create the file - open(name, "w") - self.files.append(name) - - def test_tempnam(self): - if not hasattr(os, "tempnam"): - return - warnings.filterwarnings("ignore", "tempnam", RuntimeWarning, - r"test_os$") - self.check_tempfile(os.tempnam()) - - name = os.tempnam(support.TESTFN) - self.check_tempfile(name) - - name = os.tempnam(support.TESTFN, "pfx") - self.assertTrue(os.path.basename(name)[:3] == "pfx") - self.check_tempfile(name) - - def test_tmpfile(self): - if not hasattr(os, "tmpfile"): - return - # As with test_tmpnam() below, the Windows implementation of tmpfile() - # attempts to create a file in the root directory of the current drive. - # On Vista and Server 2008, this test will always fail for normal users - # as writing to the root directory requires elevated privileges. With - # XP and below, the semantics of tmpfile() are the same, but the user - # running the test is more likely to have administrative privileges on - # their account already. If that's the case, then os.tmpfile() should - # work. In order to make this test as useful as possible, rather than - # trying to detect Windows versions or whether or not the user has the - # right permissions, just try and create a file in the root directory - # and see if it raises a 'Permission denied' OSError. If it does, then - # test that a subsequent call to os.tmpfile() raises the same error. If - # it doesn't, assume we're on XP or below and the user running the test - # has administrative privileges, and proceed with the test as normal. - if sys.platform == 'win32': - name = '\\python_test_os_test_tmpfile.txt' - if os.path.exists(name): - os.remove(name) - try: - fp = open(name, 'w') - except IOError as first: - # open() failed, assert tmpfile() fails in the same way. - # Although open() raises an IOError and os.tmpfile() raises an - # OSError(), 'args' will be (13, 'Permission denied') in both - # cases. - try: - fp = os.tmpfile() - except OSError as second: - self.assertEqual(first.args, second.args) - else: - self.fail("expected os.tmpfile() to raise OSError") - return - else: - # open() worked, therefore, tmpfile() should work. Close our - # dummy file and proceed with the test as normal. - fp.close() - os.remove(name) - - fp = os.tmpfile() - fp.write("foobar") - fp.seek(0,0) - s = fp.read() - fp.close() - self.assertTrue(s == "foobar") - - def test_tmpnam(self): - if not hasattr(os, "tmpnam"): - return - warnings.filterwarnings("ignore", "tmpnam", RuntimeWarning, - r"test_os$") - name = os.tmpnam() - if sys.platform in ("win32",): - # The Windows tmpnam() seems useless. From the MS docs: - # - # The character string that tmpnam creates consists of - # the path prefix, defined by the entry P_tmpdir in the - # file STDIO.H, followed by a sequence consisting of the - # digit characters '0' through '9'; the numerical value - # of this string is in the range 1 - 65,535. Changing the - # definitions of L_tmpnam or P_tmpdir in STDIO.H does not - # change the operation of tmpnam. - # - # The really bizarre part is that, at least under MSVC6, - # P_tmpdir is "\\". That is, the path returned refers to - # the root of the current drive. That's a terrible place to - # put temp files, and, depending on privileges, the user - # may not even be able to open a file in the root directory. - self.assertFalse(os.path.exists(name), - "file already exists for temporary file") - else: - self.check_tempfile(name) - def fdopen_helper(self, *args): fd = os.open(support.TESTFN, os.O_RDONLY) - fp2 = os.fdopen(fd, *args) - fp2.close() + f = os.fdopen(fd, *args) + f.close() def test_fdopen(self): + fd = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR) + os.close(fd) + self.fdopen_helper() self.fdopen_helper('r') self.fdopen_helper('r', 100) + # Test attributes on return values from os.*stat* family. class StatAttributeTests(unittest.TestCase): def setUp(self): @@ -1632,7 +1528,6 @@ LinkTests, TestSendfile, ProgramPriorityTests, - TemporaryFileTests, ) if __name__ == "__main__": -- Repository URL: http://hg.python.org/cpython

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cpython (3.2): test_os: remove now useless TemporaryFileTests testcase
by victor.stinner July 1, 2011

July 1, 2011

http://hg.python.org/cpython/rev/aa3a4614a6f3 changeset: 71108:aa3a4614a6f3 branch: 3.2 parent: 71106:316764e64b0a user: Victor Stinner <victor.stinner(a)haypocalc.com> date: Fri Jul 01 13:45:30 2011 +0200 summary: test_os: remove now useless TemporaryFileTests testcase TemporaryFileTests has tests for os.tempnam() and os.tmpfile(), functions removed from Python 3. Move fdopen() tests to the FileTests testcase to test fdopen() on a file descriptor, not on a directory descriptor (which raises an error on Windows). files: Lib/test/test_os.py | 117 +------------------------------ 1 files changed, 6 insertions(+), 111 deletions(-) diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py --- a/Lib/test/test_os.py +++ b/Lib/test/test_os.py @@ -109,124 +109,20 @@ self.write_windows_console(sys.executable, "-c", code) self.write_windows_console(sys.executable, "-u", "-c", code) - -class TemporaryFileTests(unittest.TestCase): - def setUp(self): - self.files = [] - os.mkdir(support.TESTFN) - - def tearDown(self): - for name in self.files: - os.unlink(name) - os.rmdir(support.TESTFN) - - def check_tempfile(self, name): - # make sure it doesn't already exist: - self.assertFalse(os.path.exists(name), - "file already exists for temporary file") - # make sure we can create the file - open(name, "w") - self.files.append(name) - - def test_tempnam(self): - if not hasattr(os, "tempnam"): - return - warnings.filterwarnings("ignore", "tempnam", RuntimeWarning, - r"test_os$") - self.check_tempfile(os.tempnam()) - - name = os.tempnam(support.TESTFN) - self.check_tempfile(name) - - name = os.tempnam(support.TESTFN, "pfx") - self.assertTrue(os.path.basename(name)[:3] == "pfx") - self.check_tempfile(name) - - def test_tmpfile(self): - if not hasattr(os, "tmpfile"): - return - # As with test_tmpnam() below, the Windows implementation of tmpfile() - # attempts to create a file in the root directory of the current drive. - # On Vista and Server 2008, this test will always fail for normal users - # as writing to the root directory requires elevated privileges. With - # XP and below, the semantics of tmpfile() are the same, but the user - # running the test is more likely to have administrative privileges on - # their account already. If that's the case, then os.tmpfile() should - # work. In order to make this test as useful as possible, rather than - # trying to detect Windows versions or whether or not the user has the - # right permissions, just try and create a file in the root directory - # and see if it raises a 'Permission denied' OSError. If it does, then - # test that a subsequent call to os.tmpfile() raises the same error. If - # it doesn't, assume we're on XP or below and the user running the test - # has administrative privileges, and proceed with the test as normal. - if sys.platform == 'win32': - name = '\\python_test_os_test_tmpfile.txt' - if os.path.exists(name): - os.remove(name) - try: - fp = open(name, 'w') - except IOError as first: - # open() failed, assert tmpfile() fails in the same way. - # Although open() raises an IOError and os.tmpfile() raises an - # OSError(), 'args' will be (13, 'Permission denied') in both - # cases. - try: - fp = os.tmpfile() - except OSError as second: - self.assertEqual(first.args, second.args) - else: - self.fail("expected os.tmpfile() to raise OSError") - return - else: - # open() worked, therefore, tmpfile() should work. Close our - # dummy file and proceed with the test as normal. - fp.close() - os.remove(name) - - fp = os.tmpfile() - fp.write("foobar") - fp.seek(0,0) - s = fp.read() - fp.close() - self.assertTrue(s == "foobar") - - def test_tmpnam(self): - if not hasattr(os, "tmpnam"): - return - warnings.filterwarnings("ignore", "tmpnam", RuntimeWarning, - r"test_os$") - name = os.tmpnam() - if sys.platform in ("win32",): - # The Windows tmpnam() seems useless. From the MS docs: - # - # The character string that tmpnam creates consists of - # the path prefix, defined by the entry P_tmpdir in the - # file STDIO.H, followed by a sequence consisting of the - # digit characters '0' through '9'; the numerical value - # of this string is in the range 1 - 65,535. Changing the - # definitions of L_tmpnam or P_tmpdir in STDIO.H does not - # change the operation of tmpnam. - # - # The really bizarre part is that, at least under MSVC6, - # P_tmpdir is "\\". That is, the path returned refers to - # the root of the current drive. That's a terrible place to - # put temp files, and, depending on privileges, the user - # may not even be able to open a file in the root directory. - self.assertFalse(os.path.exists(name), - "file already exists for temporary file") - else: - self.check_tempfile(name) - def fdopen_helper(self, *args): fd = os.open(support.TESTFN, os.O_RDONLY) - fp2 = os.fdopen(fd, *args) - fp2.close() + f = os.fdopen(fd, *args) + f.close() def test_fdopen(self): + fd = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR) + os.close(fd) + self.fdopen_helper() self.fdopen_helper('r') self.fdopen_helper('r', 100) + # Test attributes on return values from os.*stat* family. class StatAttributeTests(unittest.TestCase): def setUp(self): @@ -1344,7 +1240,6 @@ PidTests, LoginTests, LinkTests, - TemporaryFileTests, ) if __name__ == "__main__": -- Repository URL: http://hg.python.org/cpython

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cpython (merge 3.2 -> default): (merge 3.2) libpython.py (gdb) now catchs IOError in py-list and py-bt commands
by victor.stinner July 1, 2011

July 1, 2011

http://hg.python.org/cpython/rev/2aa2a7c25f2c changeset: 71107:2aa2a7c25f2c parent: 71105:588fe0fc7160 parent: 71106:316764e64b0a user: Victor Stinner <victor.stinner(a)haypocalc.com> date: Fri Jul 01 12:59:30 2011 +0200 summary: (merge 3.2) libpython.py (gdb) now catchs IOError in py-list and py-bt commands py-list displays the error. py-bt ignores the error (the filename and line number is already displayed). files: Tools/gdb/libpython.py | 22 ++++++++++++++++++---- 1 files changed, 18 insertions(+), 4 deletions(-) diff --git a/Tools/gdb/libpython.py b/Tools/gdb/libpython.py --- a/Tools/gdb/libpython.py +++ b/Tools/gdb/libpython.py @@ -905,7 +905,11 @@ if self.is_optimized_out(): return '(frame information optimized out)' filename = self.filename() - with open(os_fsencode(filename), 'r') as f: + try: + f = open(os_fsencode(filename), 'r') + except IOError: + return None + with f: all_lines = f.readlines() # Convert from 1-based current_line_num to 0-based list offset: return all_lines[self.current_line_num()-1] @@ -1430,7 +1434,9 @@ if pyop: line = pyop.get_truncated_repr(MAX_OUTPUT_LEN) write_unicode(sys.stdout, '#%i %s\n' % (self.get_index(), line)) - sys.stdout.write(pyop.current_line()) + line = pyop.current_line() + if line is not None: + sys.stdout.write(line) else: sys.stdout.write('#%i (unable to read python frame information)\n' % self.get_index()) else: @@ -1441,7 +1447,9 @@ pyop = self.get_pyop() if pyop: pyop.print_traceback() - sys.stdout.write(' %s\n' % pyop.current_line().strip()) + line = pyop.current_line() + if line is not None: + sys.stdout.write(' %s\n' % line.strip()) else: sys.stdout.write(' (unable to read python frame information)\n') else: @@ -1501,7 +1509,13 @@ if start<1: start = 1 - with open(os_fsencode(filename), 'r') as f: + try: + f = open(os_fsencode(filename), 'r') + except IOError as err: + sys.stdout.write('Unable to open %s: %s\n' + % (filename, err)) + return + with f: all_lines = f.readlines() # start and end are 1-based, all_lines is 0-based; # so [start-1:end] as a python slice gives us [start, end] as a -- Repository URL: http://hg.python.org/cpython

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cpython (3.2): libpython.py (gdb) now catchs IOError in py-list and py-bt commands
by victor.stinner July 1, 2011

July 1, 2011

http://hg.python.org/cpython/rev/316764e64b0a changeset: 71106:316764e64b0a branch: 3.2 parent: 71104:00a874ad4fc9 user: Victor Stinner <victor.stinner(a)haypocalc.com> date: Fri Jul 01 12:57:44 2011 +0200 summary: libpython.py (gdb) now catchs IOError in py-list and py-bt commands py-list displays the error. py-bt ignores the error (the filename and line number is already displayed). files: Tools/gdb/libpython.py | 22 ++++++++++++++++++---- 1 files changed, 18 insertions(+), 4 deletions(-) diff --git a/Tools/gdb/libpython.py b/Tools/gdb/libpython.py --- a/Tools/gdb/libpython.py +++ b/Tools/gdb/libpython.py @@ -905,7 +905,11 @@ if self.is_optimized_out(): return '(frame information optimized out)' filename = self.filename() - with open(os_fsencode(filename), 'r') as f: + try: + f = open(os_fsencode(filename), 'r') + except IOError: + return None + with f: all_lines = f.readlines() # Convert from 1-based current_line_num to 0-based list offset: return all_lines[self.current_line_num()-1] @@ -1430,7 +1434,9 @@ if pyop: line = pyop.get_truncated_repr(MAX_OUTPUT_LEN) write_unicode(sys.stdout, '#%i %s\n' % (self.get_index(), line)) - sys.stdout.write(pyop.current_line()) + line = pyop.current_line() + if line is not None: + sys.stdout.write(line) else: sys.stdout.write('#%i (unable to read python frame information)\n' % self.get_index()) else: @@ -1441,7 +1447,9 @@ pyop = self.get_pyop() if pyop: pyop.print_traceback() - sys.stdout.write(' %s\n' % pyop.current_line().strip()) + line = pyop.current_line() + if line is not None: + sys.stdout.write(' %s\n' % line.strip()) else: sys.stdout.write(' (unable to read python frame information)\n') else: @@ -1501,7 +1509,13 @@ if start<1: start = 1 - with open(os_fsencode(filename), 'r') as f: + try: + f = open(os_fsencode(filename), 'r') + except IOError as err: + sys.stdout.write('Unable to open %s: %s\n' + % (filename, err)) + return + with f: all_lines = f.readlines() # start and end are 1-based, all_lines is 0-based; # so [start-1:end] as a python slice gives us [start, end] as a -- Repository URL: http://hg.python.org/cpython

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Daily reference leaks (588fe0fc7160): sum=300
by solipsis＠pitrou.net June 30, 2011

June 30, 2011

results for 588fe0fc7160 on branch "default" -------------------------------------------- test_packaging leaked [100, 100, 100] references, sum=300 Command line was: ['./python', '-m', 'test.regrtest', '-uall', '-R', '3:3:/home/antoine/cpython/refleaks/reflog8iQK0e', '-x']

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cpython (merge 3.2 -> default): (merge 3.2) test_os: add TemporaryFileTests to the testcase list
by victor.stinner June 30, 2011

June 30, 2011

http://hg.python.org/cpython/rev/588fe0fc7160 changeset: 71105:588fe0fc7160 parent: 71103:0c49260e85a0 parent: 71104:00a874ad4fc9 user: Victor Stinner <victor.stinner(a)haypocalc.com> date: Fri Jul 01 02:57:33 2011 +0200 summary: (merge 3.2) test_os: add TemporaryFileTests to the testcase list The testcase was never executed, it's now fixed. files: Lib/test/test_os.py | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py --- a/Lib/test/test_os.py +++ b/Lib/test/test_os.py @@ -1632,6 +1632,7 @@ LinkTests, TestSendfile, ProgramPriorityTests, + TemporaryFileTests, ) if __name__ == "__main__": -- Repository URL: http://hg.python.org/cpython

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cpython (3.2): test_os: add TemporaryFileTests to the testcase list
by victor.stinner June 30, 2011

June 30, 2011

http://hg.python.org/cpython/rev/00a874ad4fc9 changeset: 71104:00a874ad4fc9 branch: 3.2 parent: 71101:7c60c1b41da9 user: Victor Stinner <victor.stinner(a)haypocalc.com> date: Fri Jul 01 02:56:15 2011 +0200 summary: test_os: add TemporaryFileTests to the testcase list The testcase was never executed, it's now fixed. files: Lib/test/test_os.py | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py --- a/Lib/test/test_os.py +++ b/Lib/test/test_os.py @@ -1344,6 +1344,7 @@ PidTests, LoginTests, LinkTests, + TemporaryFileTests, ) if __name__ == "__main__": -- Repository URL: http://hg.python.org/cpython

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