Python sys.flags方法代码示例

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def _args_from_interpreter_flags():
    """Return a list of command-line arguments reproducing the current
    settings in sys.flags and sys.warnoptions."""
    flag_opt_map = {
        'debug': 'd',
        # 'inspect': 'i',
        # 'interactive': 'i',
        'optimize': 'O',
        'dont_write_bytecode': 'B',
        'no_user_site': 's',
        'no_site': 'S',
        'ignore_environment': 'E',
        'verbose': 'v',
        'bytes_warning': 'b',
        'quiet': 'q',
        'hash_randomization': 'R',
    }
    args = []
    for flag, opt in flag_opt_map.items():
        v = getattr(sys.flags, flag)
        if v > 0:
            args.append('-' + opt * v)
    for opt in sys.warnoptions:
        args.append('-W' + opt)
    return args 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def add(self, key, value):
        if key in self.info:
            raise ValueError("duplicate key: %r" % key)

        if value is None:
            return

        if not isinstance(value, int):
            if not isinstance(value, str):
                # convert other objects like sys.flags to string
                value = str(value)

            value = value.strip()
            if not value:
                return

        self.info[key] = value 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def check_enableusersite():
    """Check if user site directory is safe for inclusion

    The function tests for the command line flag (including environment var),
    process uid/gid equal to effective uid/gid.

    None: Disabled for security reasons
    False: Disabled by user (command line option)
    True: Safe and enabled
    """
    if hasattr(sys, 'flags') and getattr(sys.flags, 'no_user_site', False):
        return False

    if hasattr(os, "getuid") and hasattr(os, "geteuid"):
        # check process uid == effective uid
        if os.geteuid() != os.getuid():
            return None
    if hasattr(os, "getgid") and hasattr(os, "getegid"):
        # check process gid == effective gid
        if os.getegid() != os.getgid():
            return None

    return True 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def _args_from_interpreter_flags():
    """Return a list of command-line arguments reproducing the current
    settings in sys.flags and sys.warnoptions."""
    flag_opt_map = {
        'debug': 'd',
        # 'inspect': 'i',
        # 'interactive': 'i',
        'optimize': 'O',
        'dont_write_bytecode': 'B',
        'no_user_site': 's',
        'no_site': 'S',
        'ignore_environment': 'E',
        'verbose': 'v',
        'bytes_warning': 'b',
        'hash_randomization': 'R',
        'py3k_warning': '3',
    }
    args = []
    for flag, opt in flag_opt_map.items():
        v = getattr(sys.flags, flag)
        if v > 0:
            args.append('-' + opt * v)
    for opt in sys.warnoptions:
        args.append('-W' + opt)
    return args 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def test_pythontypes(self):
        # check all types defined in Python/
        size = test.test_support.calcobjsize
        vsize = test.test_support.calcvobjsize
        check = self.check_sizeof
        # _ast.AST
        import _ast
        check(_ast.AST(), size(''))
        # imp.NullImporter
        import imp
        check(imp.NullImporter(self.file.name), size(''))
        try:
            raise TypeError
        except TypeError:
            tb = sys.exc_info()[2]
            # traceback
            if tb != None:
                check(tb, size('2P2i'))
        # symtable entry
        # XXX
        # sys.flags
        check(sys.flags, vsize('') + self.P * len(sys.flags)) 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def check_enableusersite():
    """Check if user site directory is safe for inclusion

    The function tests for the command line flag (including environment var),
    process uid/gid equal to effective uid/gid.

    None: Disabled for security reasons
    False: Disabled by user (command line option)
    True: Safe and enabled
    """
    if hasattr(sys, "flags") and getattr(sys.flags, "no_user_site", False):
        return False

    if hasattr(os, "getuid") and hasattr(os, "geteuid"):
        # check process uid == effective uid
        if os.geteuid() != os.getuid():
            return None
    if hasattr(os, "getgid") and hasattr(os, "getegid"):
        # check process gid == effective gid
        if os.getegid() != os.getgid():
            return None

    return True 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def test_hash_randomization(self):
        # Verify that -R enables hash randomization:
        self.verify_valid_flag('-R')
        hashes = []
        for i in range(2):
            code = 'print(hash("spam"))'
            rc, out, err = assert_python_ok('-c', code)
            self.assertEqual(rc, 0)
            hashes.append(out)
        self.assertNotEqual(hashes[0], hashes[1])

        # Verify that sys.flags contains hash_randomization
        code = 'import sys; print("random is", sys.flags.hash_randomization)'
        rc, out, err = assert_python_ok('-c', code)
        self.assertEqual(rc, 0)
        self.assertIn(b'random is 1', out) 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def test_isolatedmode(self):
        self.verify_valid_flag('-I')
        self.verify_valid_flag('-IEs')
        rc, out, err = assert_python_ok('-I', '-c',
            'from sys import flags as f; '
            'print(f.no_user_site, f.ignore_environment, f.isolated)',
            # dummyvar to prevent extranous -E
            dummyvar="")
        self.assertEqual(out.strip(), b'1 1 1')
        with test.support.temp_cwd() as tmpdir:
            fake = os.path.join(tmpdir, "uuid.py")
            main = os.path.join(tmpdir, "main.py")
            with open(fake, "w") as f:
                f.write("raise RuntimeError('isolated mode test')\n")
            with open(main, "w") as f:
                f.write("import uuid\n")
                f.write("print('ok')\n")
            self.assertRaises(subprocess.CalledProcessError,
                              subprocess.check_output,
                              [sys.executable, main], cwd=tmpdir,
                              stderr=subprocess.DEVNULL)
            out = subprocess.check_output([sys.executable, "-I", main],
                                          cwd=tmpdir)
            self.assertEqual(out.strip(), b"ok") 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def set_inheritable(fd, inheritable):
    # On py34+ we can use os.set_inheritable but < py34 we must polyfill
    # with fcntl and SetHandleInformation
    if hasattr(os, 'get_inheritable'):
        if os.get_inheritable(fd) != inheritable:
            os.set_inheritable(fd, inheritable)

    elif WIN:
        h = get_handle(fd)
        flags = winapi.HANDLE_FLAG_INHERIT if inheritable else 0
        winapi.SetHandleInformation(h, winapi.HANDLE_FLAG_INHERIT, flags)

    else:
        flags = fcntl.fcntl(fd, fcntl.F_GETFD)
        if inheritable:
            new_flags = flags & ~fcntl.FD_CLOEXEC
        else:
            new_flags = flags | fcntl.FD_CLOEXEC
        if new_flags != flags:
            fcntl.fcntl(fd, fcntl.F_SETFD, new_flags) 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def args_from_interpreter_flags():
    """
    Return a list of command-line arguments reproducing the current
    settings in sys.flags and sys.warnoptions.

    """
    flag_opt_map = {
        'debug': 'd',
        'dont_write_bytecode': 'B',
        'no_user_site': 's',
        'no_site': 'S',
        'ignore_environment': 'E',
        'verbose': 'v',
        'bytes_warning': 'b',
        'quiet': 'q',
        'optimize': 'O',
    }
    args = []
    for flag, opt in flag_opt_map.items():
        v = getattr(sys.flags, flag, 0)
        if v > 0:
            args.append('-' + opt * v)
    for opt in sys.warnoptions:
        args.append('-W' + opt)
    return args 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def _args_from_interpreter_flags():
    """Return a list of command-line arguments reproducing the current
    settings in sys.flags and sys.warnoptions."""
    flag_opt_map = {
        'debug': 'd',
        # 'inspect': 'i',
        # 'interactive': 'i',
        'optimize': 'O',
        'dont_write_bytecode': 'B',
        'no_user_site': 's',
        'no_site': 'S',
        'ignore_environment': 'E',
        'verbose': 'v',
        'bytes_warning': 'b',
        'quiet': 'q',
    }
    args = []
    for flag, opt in flag_opt_map.items():
        v = getattr(sys.flags, flag)
        if v > 0:
            args.append('-' + opt * v)
    for opt in sys.warnoptions:
        args.append('-W' + opt)
    return args 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def args_from_interpreter_flags():
    """Return a list of command-line arguments reproducing the current
    settings in sys.flags and sys.warnoptions."""
    return subprocess._args_from_interpreter_flags()

#============================================================
# Support for assertions about logging.
#============================================================ 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def can_xattr():
    global _can_xattr
    if _can_xattr is not None:
        return _can_xattr
    if not hasattr(os, "setxattr"):
        can = False
    else:
        tmp_fp, tmp_name = tempfile.mkstemp()
        try:
            with open(TESTFN, "wb") as fp:
                try:
                    # TESTFN & tempfile may use different file systems with
                    # different capabilities
                    os.setxattr(tmp_fp, b"user.test", b"")
                    os.setxattr(fp.fileno(), b"user.test", b"")
                    # Kernels < 2.6.39 don't respect setxattr flags.
                    kernel_version = platform.release()
                    m = re.match("2.6.(\d{1,2})", kernel_version)
                    can = m is None or int(m.group(1)) >= 39
                except OSError:
                    can = False
        finally:
            unlink(TESTFN)
            unlink(tmp_name)
    _can_xattr = can
    return can 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def _args_from_interpreter_flags():
    """Return a list of command-line arguments reproducing the current
    settings in sys.flags and sys.warnoptions."""
    flag_opt_map = {
        'debug': 'd',
        # 'inspect': 'i',
        # 'interactive': 'i',
        'optimize': 'O',
        'dont_write_bytecode': 'B',
        'no_user_site': 's',
        'no_site': 'S',
        'ignore_environment': 'E',
        'verbose': 'v',
        'bytes_warning': 'b',
        'py3k_warning': '3',
    }
    args = []
    for flag, opt in flag_opt_map.items():
        v = getattr(sys.flags, flag)
        if v > 0:
            args.append('-' + opt * v)
    if getattr(sys.flags, 'hash_randomization') != 0:
        args.append('-R')
    for opt in sys.warnoptions:
        args.append('-W' + opt)
    return args 

# 需要导入模块: import sys [as 别名]
# 或者: from sys import flags [as 别名]
def test_sys_flags(self):
        self.assertTrue(sys.flags)
        attrs = ("debug", "py3k_warning", "division_warning", "division_new",
                 "inspect", "interactive", "optimize", "dont_write_bytecode",
                 "no_site", "ignore_environment", "tabcheck", "verbose",
                 "unicode", "bytes_warning", "hash_randomization")
        for attr in attrs:
            self.assertTrue(hasattr(sys.flags, attr), attr)
            self.assertEqual(type(getattr(sys.flags, attr)), int, attr)
        self.assertTrue(repr(sys.flags))