diff options
Diffstat (limited to 'lib/python2.7/test/test_file2k.py')
| -rw-r--r-- | lib/python2.7/test/test_file2k.py | 832 |
1 files changed, 0 insertions, 832 deletions
diff --git a/lib/python2.7/test/test_file2k.py b/lib/python2.7/test/test_file2k.py deleted file mode 100644 index 0c633b4..0000000 --- a/lib/python2.7/test/test_file2k.py +++ /dev/null @@ -1,832 +0,0 @@ -import sys -import os -import unittest -import itertools -import select -import signal -import subprocess -import time -from array import array -from weakref import proxy -try: - import threading -except ImportError: - threading = None - -from test import test_support -from test.test_support import TESTFN, run_unittest -from UserList import UserList - -class AutoFileTests(unittest.TestCase): - # file tests for which a test file is automatically set up - - def setUp(self): - self.f = open(TESTFN, 'wb') - - def tearDown(self): - if self.f: - self.f.close() - os.remove(TESTFN) - - def testWeakRefs(self): - # verify weak references - p = proxy(self.f) - p.write('teststring') - self.assertEqual(self.f.tell(), p.tell()) - self.f.close() - self.f = None - self.assertRaises(ReferenceError, getattr, p, 'tell') - - def testAttributes(self): - # verify expected attributes exist - f = self.f - with test_support.check_py3k_warnings(): - softspace = f.softspace - f.name # merely shouldn't blow up - f.mode # ditto - f.closed # ditto - - with test_support.check_py3k_warnings(): - # verify softspace is writable - f.softspace = softspace # merely shouldn't blow up - - # verify the others aren't - for attr in 'name', 'mode', 'closed': - self.assertRaises((AttributeError, TypeError), setattr, f, attr, 'oops') - - def testReadinto(self): - # verify readinto - self.f.write('12') - self.f.close() - a = array('c', 'x'*10) - self.f = open(TESTFN, 'rb') - n = self.f.readinto(a) - self.assertEqual('12', a.tostring()[:n]) - - def testWritelinesUserList(self): - # verify writelines with instance sequence - l = UserList(['1', '2']) - self.f.writelines(l) - self.f.close() - self.f = open(TESTFN, 'rb') - buf = self.f.read() - self.assertEqual(buf, '12') - - def testWritelinesIntegers(self): - # verify writelines with integers - self.assertRaises(TypeError, self.f.writelines, [1, 2, 3]) - - def testWritelinesIntegersUserList(self): - # verify writelines with integers in UserList - l = UserList([1,2,3]) - self.assertRaises(TypeError, self.f.writelines, l) - - def testWritelinesNonString(self): - # verify writelines with non-string object - class NonString: - pass - - self.assertRaises(TypeError, self.f.writelines, - [NonString(), NonString()]) - - def testRepr(self): - # verify repr works - self.assertTrue(repr(self.f).startswith("<open file '" + TESTFN)) - # see issue #14161 - # Windows doesn't like \r\n\t" in the file name, but ' is ok - fname = 'xx\rxx\nxx\'xx"xx' if sys.platform != "win32" else "xx'xx" - with open(fname, 'w') as f: - self.addCleanup(os.remove, fname) - self.assertTrue(repr(f).startswith( - "<open file %r, mode 'w' at" % fname)) - - def testErrors(self): - self.f.close() - self.f = open(TESTFN, 'rb') - f = self.f - self.assertEqual(f.name, TESTFN) - self.assertTrue(not f.isatty()) - self.assertTrue(not f.closed) - - self.assertRaises(TypeError, f.readinto, "") - f.close() - self.assertTrue(f.closed) - - def testMethods(self): - methods = ['fileno', 'flush', 'isatty', 'next', 'read', 'readinto', - 'readline', 'readlines', 'seek', 'tell', 'truncate', - 'write', '__iter__'] - deprecated_methods = ['xreadlines'] - if sys.platform.startswith('atheos'): - methods.remove('truncate') - - # __exit__ should close the file - self.f.__exit__(None, None, None) - self.assertTrue(self.f.closed) - - for methodname in methods: - method = getattr(self.f, methodname) - # should raise on closed file - self.assertRaises(ValueError, method) - with test_support.check_py3k_warnings(): - for methodname in deprecated_methods: - method = getattr(self.f, methodname) - self.assertRaises(ValueError, method) - self.assertRaises(ValueError, self.f.writelines, []) - - # file is closed, __exit__ shouldn't do anything - self.assertEqual(self.f.__exit__(None, None, None), None) - # it must also return None if an exception was given - try: - 1 // 0 - except: - self.assertEqual(self.f.__exit__(*sys.exc_info()), None) - - def testReadWhenWriting(self): - self.assertRaises(IOError, self.f.read) - - def testNastyWritelinesGenerator(self): - def nasty(): - for i in range(5): - if i == 3: - self.f.close() - yield str(i) - self.assertRaises(ValueError, self.f.writelines, nasty()) - - def testIssue5677(self): - # Remark: Do not perform more than one test per open file, - # since that does NOT catch the readline error on Windows. - data = 'xxx' - for mode in ['w', 'wb', 'a', 'ab']: - for attr in ['read', 'readline', 'readlines']: - self.f = open(TESTFN, mode) - self.f.write(data) - self.assertRaises(IOError, getattr(self.f, attr)) - self.f.close() - - self.f = open(TESTFN, mode) - self.f.write(data) - self.assertRaises(IOError, lambda: [line for line in self.f]) - self.f.close() - - self.f = open(TESTFN, mode) - self.f.write(data) - self.assertRaises(IOError, self.f.readinto, bytearray(len(data))) - self.f.close() - - for mode in ['r', 'rb', 'U', 'Ub', 'Ur', 'rU', 'rbU', 'rUb']: - self.f = open(TESTFN, mode) - self.assertRaises(IOError, self.f.write, data) - self.f.close() - - self.f = open(TESTFN, mode) - self.assertRaises(IOError, self.f.writelines, [data, data]) - self.f.close() - - self.f = open(TESTFN, mode) - self.assertRaises(IOError, self.f.truncate) - self.f.close() - -class OtherFileTests(unittest.TestCase): - - def testOpenDir(self): - this_dir = os.path.dirname(__file__) or os.curdir - for mode in (None, "w"): - try: - if mode: - f = open(this_dir, mode) - else: - f = open(this_dir) - except IOError as e: - self.assertEqual(e.filename, this_dir) - else: - self.fail("opening a directory didn't raise an IOError") - - def testModeStrings(self): - # check invalid mode strings - for mode in ("", "aU", "wU+"): - try: - f = open(TESTFN, mode) - except ValueError: - pass - else: - f.close() - self.fail('%r is an invalid file mode' % mode) - - # Some invalid modes fail on Windows, but pass on Unix - # Issue3965: avoid a crash on Windows when filename is unicode - for name in (TESTFN, unicode(TESTFN), unicode(TESTFN + '\t')): - try: - f = open(name, "rr") - except (IOError, ValueError): - pass - else: - f.close() - - def testStdin(self): - # This causes the interpreter to exit on OSF1 v5.1. - if sys.platform != 'osf1V5': - self.assertRaises(IOError, sys.stdin.seek, -1) - else: - print >>sys.__stdout__, ( - ' Skipping sys.stdin.seek(-1), it may crash the interpreter.' - ' Test manually.') - self.assertRaises(IOError, sys.stdin.truncate) - - def testUnicodeOpen(self): - # verify repr works for unicode too - f = open(unicode(TESTFN), "w") - self.assertTrue(repr(f).startswith("<open file u'" + TESTFN)) - f.close() - os.unlink(TESTFN) - - def testBadModeArgument(self): - # verify that we get a sensible error message for bad mode argument - bad_mode = "qwerty" - try: - f = open(TESTFN, bad_mode) - except ValueError, msg: - if msg.args[0] != 0: - s = str(msg) - if TESTFN in s or bad_mode not in s: - self.fail("bad error message for invalid mode: %s" % s) - # if msg.args[0] == 0, we're probably on Windows where there may - # be no obvious way to discover why open() failed. - else: - f.close() - self.fail("no error for invalid mode: %s" % bad_mode) - - def testSetBufferSize(self): - # make sure that explicitly setting the buffer size doesn't cause - # misbehaviour especially with repeated close() calls - for s in (-1, 0, 1, 512): - try: - f = open(TESTFN, 'w', s) - f.write(str(s)) - f.close() - f.close() - f = open(TESTFN, 'r', s) - d = int(f.read()) - f.close() - f.close() - except IOError, msg: - self.fail('error setting buffer size %d: %s' % (s, str(msg))) - self.assertEqual(d, s) - - def testTruncateOnWindows(self): - os.unlink(TESTFN) - - def bug801631(): - # SF bug <http://www.python.org/sf/801631> - # "file.truncate fault on windows" - f = open(TESTFN, 'wb') - f.write('12345678901') # 11 bytes - f.close() - - f = open(TESTFN,'rb+') - data = f.read(5) - if data != '12345': - self.fail("Read on file opened for update failed %r" % data) - if f.tell() != 5: - self.fail("File pos after read wrong %d" % f.tell()) - - f.truncate() - if f.tell() != 5: - self.fail("File pos after ftruncate wrong %d" % f.tell()) - - f.close() - size = os.path.getsize(TESTFN) - if size != 5: - self.fail("File size after ftruncate wrong %d" % size) - - try: - bug801631() - finally: - os.unlink(TESTFN) - - def testIteration(self): - # Test the complex interaction when mixing file-iteration and the - # various read* methods. Ostensibly, the mixture could just be tested - # to work when it should work according to the Python language, - # instead of fail when it should fail according to the current CPython - # implementation. People don't always program Python the way they - # should, though, and the implemenation might change in subtle ways, - # so we explicitly test for errors, too; the test will just have to - # be updated when the implementation changes. - dataoffset = 16384 - filler = "ham\n" - assert not dataoffset % len(filler), \ - "dataoffset must be multiple of len(filler)" - nchunks = dataoffset // len(filler) - testlines = [ - "spam, spam and eggs\n", - "eggs, spam, ham and spam\n", - "saussages, spam, spam and eggs\n", - "spam, ham, spam and eggs\n", - "spam, spam, spam, spam, spam, ham, spam\n", - "wonderful spaaaaaam.\n" - ] - methods = [("readline", ()), ("read", ()), ("readlines", ()), - ("readinto", (array("c", " "*100),))] - - try: - # Prepare the testfile - bag = open(TESTFN, "w") - bag.write(filler * nchunks) - bag.writelines(testlines) - bag.close() - # Test for appropriate errors mixing read* and iteration - for methodname, args in methods: - f = open(TESTFN) - if f.next() != filler: - self.fail, "Broken testfile" - meth = getattr(f, methodname) - try: - meth(*args) - except ValueError: - pass - else: - self.fail("%s%r after next() didn't raise ValueError" % - (methodname, args)) - f.close() - - # Test to see if harmless (by accident) mixing of read* and - # iteration still works. This depends on the size of the internal - # iteration buffer (currently 8192,) but we can test it in a - # flexible manner. Each line in the bag o' ham is 4 bytes - # ("h", "a", "m", "\n"), so 4096 lines of that should get us - # exactly on the buffer boundary for any power-of-2 buffersize - # between 4 and 16384 (inclusive). - f = open(TESTFN) - for i in range(nchunks): - f.next() - testline = testlines.pop(0) - try: - line = f.readline() - except ValueError: - self.fail("readline() after next() with supposedly empty " - "iteration-buffer failed anyway") - if line != testline: - self.fail("readline() after next() with empty buffer " - "failed. Got %r, expected %r" % (line, testline)) - testline = testlines.pop(0) - buf = array("c", "\x00" * len(testline)) - try: - f.readinto(buf) - except ValueError: - self.fail("readinto() after next() with supposedly empty " - "iteration-buffer failed anyway") - line = buf.tostring() - if line != testline: - self.fail("readinto() after next() with empty buffer " - "failed. Got %r, expected %r" % (line, testline)) - - testline = testlines.pop(0) - try: - line = f.read(len(testline)) - except ValueError: - self.fail("read() after next() with supposedly empty " - "iteration-buffer failed anyway") - if line != testline: - self.fail("read() after next() with empty buffer " - "failed. Got %r, expected %r" % (line, testline)) - try: - lines = f.readlines() - except ValueError: - self.fail("readlines() after next() with supposedly empty " - "iteration-buffer failed anyway") - if lines != testlines: - self.fail("readlines() after next() with empty buffer " - "failed. Got %r, expected %r" % (line, testline)) - # Reading after iteration hit EOF shouldn't hurt either - f = open(TESTFN) - try: - for line in f: - pass - try: - f.readline() - f.readinto(buf) - f.read() - f.readlines() - except ValueError: - self.fail("read* failed after next() consumed file") - finally: - f.close() - finally: - os.unlink(TESTFN) - -class FileSubclassTests(unittest.TestCase): - - def testExit(self): - # test that exiting with context calls subclass' close - class C(file): - def __init__(self, *args): - self.subclass_closed = False - file.__init__(self, *args) - def close(self): - self.subclass_closed = True - file.close(self) - - with C(TESTFN, 'w') as f: - pass - self.assertTrue(f.subclass_closed) - - -@unittest.skipUnless(threading, 'Threading required for this test.') -class FileThreadingTests(unittest.TestCase): - # These tests check the ability to call various methods of file objects - # (including close()) concurrently without crashing the Python interpreter. - # See #815646, #595601 - - def setUp(self): - self._threads = test_support.threading_setup() - self.f = None - self.filename = TESTFN - with open(self.filename, "w") as f: - f.write("\n".join("0123456789")) - self._count_lock = threading.Lock() - self.close_count = 0 - self.close_success_count = 0 - self.use_buffering = False - - def tearDown(self): - if self.f: - try: - self.f.close() - except (EnvironmentError, ValueError): - pass - try: - os.remove(self.filename) - except EnvironmentError: - pass - test_support.threading_cleanup(*self._threads) - - def _create_file(self): - if self.use_buffering: - self.f = open(self.filename, "w+", buffering=1024*16) - else: - self.f = open(self.filename, "w+") - - def _close_file(self): - with self._count_lock: - self.close_count += 1 - self.f.close() - with self._count_lock: - self.close_success_count += 1 - - def _close_and_reopen_file(self): - self._close_file() - # if close raises an exception thats fine, self.f remains valid so - # we don't need to reopen. - self._create_file() - - def _run_workers(self, func, nb_workers, duration=0.2): - with self._count_lock: - self.close_count = 0 - self.close_success_count = 0 - self.do_continue = True - threads = [] - try: - for i in range(nb_workers): - t = threading.Thread(target=func) - t.start() - threads.append(t) - for _ in xrange(100): - time.sleep(duration/100) - with self._count_lock: - if self.close_count-self.close_success_count > nb_workers+1: - if test_support.verbose: - print 'Q', - break - time.sleep(duration) - finally: - self.do_continue = False - for t in threads: - t.join() - - def _test_close_open_io(self, io_func, nb_workers=5): - def worker(): - self._create_file() - funcs = itertools.cycle(( - lambda: io_func(), - lambda: self._close_and_reopen_file(), - )) - for f in funcs: - if not self.do_continue: - break - try: - f() - except (IOError, ValueError): - pass - self._run_workers(worker, nb_workers) - if test_support.verbose: - # Useful verbose statistics when tuning this test to take - # less time to run but still ensuring that its still useful. - # - # the percent of close calls that raised an error - percent = 100. - 100.*self.close_success_count/self.close_count - print self.close_count, ('%.4f ' % percent), - - def test_close_open(self): - def io_func(): - pass - self._test_close_open_io(io_func) - - def test_close_open_flush(self): - def io_func(): - self.f.flush() - self._test_close_open_io(io_func) - - def test_close_open_iter(self): - def io_func(): - list(iter(self.f)) - self._test_close_open_io(io_func) - - def test_close_open_isatty(self): - def io_func(): - self.f.isatty() - self._test_close_open_io(io_func) - - def test_close_open_print(self): - def io_func(): - print >> self.f, '' - self._test_close_open_io(io_func) - - def test_close_open_print_buffered(self): - self.use_buffering = True - def io_func(): - print >> self.f, '' - self._test_close_open_io(io_func) - - def test_close_open_read(self): - def io_func(): - self.f.read(0) - self._test_close_open_io(io_func) - - def test_close_open_readinto(self): - def io_func(): - a = array('c', 'xxxxx') - self.f.readinto(a) - self._test_close_open_io(io_func) - - def test_close_open_readline(self): - def io_func(): - self.f.readline() - self._test_close_open_io(io_func) - - def test_close_open_readlines(self): - def io_func(): - self.f.readlines() - self._test_close_open_io(io_func) - - def test_close_open_seek(self): - def io_func(): - self.f.seek(0, 0) - self._test_close_open_io(io_func) - - def test_close_open_tell(self): - def io_func(): - self.f.tell() - self._test_close_open_io(io_func) - - def test_close_open_truncate(self): - def io_func(): - self.f.truncate() - self._test_close_open_io(io_func) - - def test_close_open_write(self): - def io_func(): - self.f.write('') - self._test_close_open_io(io_func) - - def test_close_open_writelines(self): - def io_func(): - self.f.writelines('') - self._test_close_open_io(io_func) - - -@unittest.skipUnless(os.name == 'posix', 'test requires a posix system.') -class TestFileSignalEINTR(unittest.TestCase): - def _test_reading(self, data_to_write, read_and_verify_code, method_name, - universal_newlines=False): - """Generic buffered read method test harness to verify EINTR behavior. - - Also validates that Python signal handlers are run during the read. - - Args: - data_to_write: String to write to the child process for reading - before sending it a signal, confirming the signal was handled, - writing a final newline char and closing the infile pipe. - read_and_verify_code: Single "line" of code to read from a file - object named 'infile' and validate the result. This will be - executed as part of a python subprocess fed data_to_write. - method_name: The name of the read method being tested, for use in - an error message on failure. - universal_newlines: If True, infile will be opened in universal - newline mode in the child process. - """ - if universal_newlines: - # Test the \r\n -> \n conversion while we're at it. - data_to_write = data_to_write.replace('\n', '\r\n') - infile_setup_code = 'infile = os.fdopen(sys.stdin.fileno(), "rU")' - else: - infile_setup_code = 'infile = sys.stdin' - # Total pipe IO in this function is smaller than the minimum posix OS - # pipe buffer size of 512 bytes. No writer should block. - assert len(data_to_write) < 512, 'data_to_write must fit in pipe buf.' - - child_code = ( - 'import os, signal, sys ;' - 'signal.signal(' - 'signal.SIGINT, lambda s, f: sys.stderr.write("$\\n")) ;' - + infile_setup_code + ' ;' + - 'assert isinstance(infile, file) ;' - 'sys.stderr.write("Go.\\n") ;' - + read_and_verify_code) - reader_process = subprocess.Popen( - [sys.executable, '-c', child_code], - stdin=subprocess.PIPE, stdout=subprocess.PIPE, - stderr=subprocess.PIPE) - # Wait for the signal handler to be installed. - go = reader_process.stderr.read(4) - if go != 'Go.\n': - reader_process.kill() - self.fail('Error from %s process while awaiting "Go":\n%s' % ( - method_name, go+reader_process.stderr.read())) - reader_process.stdin.write(data_to_write) - signals_sent = 0 - rlist = [] - # We don't know when the read_and_verify_code in our child is actually - # executing within the read system call we want to interrupt. This - # loop waits for a bit before sending the first signal to increase - # the likelihood of that. Implementations without correct EINTR - # and signal handling usually fail this test. - while not rlist: - rlist, _, _ = select.select([reader_process.stderr], (), (), 0.05) - reader_process.send_signal(signal.SIGINT) - # Give the subprocess time to handle it before we loop around and - # send another one. On OSX the second signal happening close to - # immediately after the first was causing the subprocess to crash - # via the OS's default SIGINT handler. - time.sleep(0.1) - signals_sent += 1 - if signals_sent > 200: - reader_process.kill() - self.fail("failed to handle signal during %s." % method_name) - # This assumes anything unexpected that writes to stderr will also - # write a newline. That is true of the traceback printing code. - signal_line = reader_process.stderr.readline() - if signal_line != '$\n': - reader_process.kill() - self.fail('Error from %s process while awaiting signal:\n%s' % ( - method_name, signal_line+reader_process.stderr.read())) - # We append a newline to our input so that a readline call can - # end on its own before the EOF is seen. - stdout, stderr = reader_process.communicate(input='\n') - if reader_process.returncode != 0: - self.fail('%s() process exited rc=%d.\nSTDOUT:\n%s\nSTDERR:\n%s' % ( - method_name, reader_process.returncode, stdout, stderr)) - - def test_readline(self, universal_newlines=False): - """file.readline must handle signals and not lose data.""" - self._test_reading( - data_to_write='hello, world!', - read_and_verify_code=( - 'line = infile.readline() ;' - 'expected_line = "hello, world!\\n" ;' - 'assert line == expected_line, (' - '"read %r expected %r" % (line, expected_line))' - ), - method_name='readline', - universal_newlines=universal_newlines) - - def test_readline_with_universal_newlines(self): - self.test_readline(universal_newlines=True) - - def test_readlines(self, universal_newlines=False): - """file.readlines must handle signals and not lose data.""" - self._test_reading( - data_to_write='hello\nworld!', - read_and_verify_code=( - 'lines = infile.readlines() ;' - 'expected_lines = ["hello\\n", "world!\\n"] ;' - 'assert lines == expected_lines, (' - '"readlines returned wrong data.\\n" ' - '"got lines %r\\nexpected %r" ' - '% (lines, expected_lines))' - ), - method_name='readlines', - universal_newlines=universal_newlines) - - def test_readlines_with_universal_newlines(self): - self.test_readlines(universal_newlines=True) - - def test_readall(self): - """Unbounded file.read() must handle signals and not lose data.""" - self._test_reading( - data_to_write='hello, world!abcdefghijklm', - read_and_verify_code=( - 'data = infile.read() ;' - 'expected_data = "hello, world!abcdefghijklm\\n";' - 'assert data == expected_data, (' - '"read %r expected %r" % (data, expected_data))' - ), - method_name='unbounded read') - - def test_readinto(self): - """file.readinto must handle signals and not lose data.""" - self._test_reading( - data_to_write='hello, world!', - read_and_verify_code=( - 'data = bytearray(50) ;' - 'num_read = infile.readinto(data) ;' - 'expected_data = "hello, world!\\n";' - 'assert data[:num_read] == expected_data, (' - '"read %r expected %r" % (data, expected_data))' - ), - method_name='readinto') - - -class StdoutTests(unittest.TestCase): - - def test_move_stdout_on_write(self): - # Issue 3242: sys.stdout can be replaced (and freed) during a - # print statement; prevent a segfault in this case - save_stdout = sys.stdout - - class File: - def write(self, data): - if '\n' in data: - sys.stdout = save_stdout - - try: - sys.stdout = File() - print "some text" - finally: - sys.stdout = save_stdout - - def test_del_stdout_before_print(self): - # Issue 4597: 'print' with no argument wasn't reporting when - # sys.stdout was deleted. - save_stdout = sys.stdout - del sys.stdout - try: - print - except RuntimeError as e: - self.assertEqual(str(e), "lost sys.stdout") - else: - self.fail("Expected RuntimeError") - finally: - sys.stdout = save_stdout - - def test_unicode(self): - import subprocess - - def get_message(encoding, *code): - code = '\n'.join(code) - env = os.environ.copy() - env['PYTHONIOENCODING'] = encoding - process = subprocess.Popen([sys.executable, "-c", code], - stdout=subprocess.PIPE, env=env) - stdout, stderr = process.communicate() - self.assertEqual(process.returncode, 0) - return stdout - - def check_message(text, encoding, expected): - stdout = get_message(encoding, - "import sys", - "sys.stdout.write(%r)" % text, - "sys.stdout.flush()") - self.assertEqual(stdout, expected) - - # test the encoding - check_message(u'15\u20ac', "iso-8859-15", "15\xa4") - check_message(u'15\u20ac', "utf-8", '15\xe2\x82\xac') - check_message(u'15\u20ac', "utf-16-le", '1\x005\x00\xac\x20') - - # test the error handler - check_message(u'15\u20ac', "iso-8859-1:ignore", "15") - check_message(u'15\u20ac', "iso-8859-1:replace", "15?") - check_message(u'15\u20ac', "iso-8859-1:backslashreplace", "15\\u20ac") - - # test the buffer API - for objtype in ('buffer', 'bytearray'): - stdout = get_message('ascii', - 'import sys', - r'sys.stdout.write(%s("\xe9"))' % objtype, - 'sys.stdout.flush()') - self.assertEqual(stdout, "\xe9") - - -def test_main(): - # Historically, these tests have been sloppy about removing TESTFN. - # So get rid of it no matter what. - try: - run_unittest(AutoFileTests, OtherFileTests, FileSubclassTests, - FileThreadingTests, TestFileSignalEINTR, StdoutTests) - finally: - if os.path.exists(TESTFN): - os.unlink(TESTFN) - -if __name__ == '__main__': - test_main() |