Python py3compat.PY3属性代码示例

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def test_UnicodeStdStream():
    # Test wrapping a bytes-level stdout
    if PY3:
        stdoutb = stdlib_io.BytesIO()
        stdout = stdlib_io.TextIOWrapper(stdoutb, encoding='ascii')
    else:
        stdout = stdoutb = stdlib_io.BytesIO()

    orig_stdout = sys.stdout
    sys.stdout = stdout
    try:
        sample = u"@łe¶ŧ←"
        unicode_std_stream().write(sample)

        output = stdoutb.getvalue().decode('utf-8')
        nt.assert_equal(output, sample)
        assert not stdout.closed
    finally:
        sys.stdout = orig_stdout 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def error(self, obj, value):
        kind = type(value)
        if (not py3compat.PY3) and kind is InstanceType:
            msg = 'class %s' % value.__class__.__name__
        else:
            msg = '%s (i.e. %s)' % ( str( kind )[1:-1], repr( value ) )

        if obj is not None:
            e = "The '%s' trait of %s instance must be %s, but a value of %s was specified." \
                % (self.name, class_of(obj),
                   self.info(), msg)
        else:
            e = "The '%s' trait must be %s, but a value of %r was specified." \
                % (self.name, self.info(), msg)

        raise TraitError(e) 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def test_raw_input():
    """test [raw_]input"""
    with new_kernel() as kc:
        iopub = kc.iopub_channel

        input_f = "input" if py3compat.PY3 else "raw_input"
        theprompt = "prompt> "
        code = 'print({input_f}("{theprompt}"))'.format(**locals())
        msg_id = kc.execute(code, allow_stdin=True)
        msg = kc.get_stdin_msg(block=True, timeout=TIMEOUT)
        nt.assert_equal(msg['header']['msg_type'], u'input_request')
        content = msg['content']
        nt.assert_equal(content['prompt'], theprompt)
        text = "some text"
        kc.input(text)
        reply = kc.get_shell_msg(block=True, timeout=TIMEOUT)
        nt.assert_equal(reply['content']['status'], 'ok')
        stdout, stderr = assemble_output(iopub)
        nt.assert_equal(stdout, text + "\n") 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def test_eval_input():
    """test input() on Python 2"""
    with new_kernel() as kc:
        iopub = kc.iopub_channel

        input_f = "input" if py3compat.PY3 else "raw_input"
        theprompt = "prompt> "
        code = 'print(input("{theprompt}"))'.format(**locals())
        msg_id = kc.execute(code, allow_stdin=True)
        msg = kc.get_stdin_msg(block=True, timeout=TIMEOUT)
        nt.assert_equal(msg['header']['msg_type'], u'input_request')
        content = msg['content']
        nt.assert_equal(content['prompt'], theprompt)
        kc.input("1+1")
        reply = kc.get_shell_msg(block=True, timeout=TIMEOUT)
        nt.assert_equal(reply['content']['status'], 'ok')
        stdout, stderr = assemble_output(iopub)
        nt.assert_equal(stdout, "2\n") 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def _inject_cookie_message(self, msg):
        """Inject the first message, which is the document cookie,
        for authentication."""
        if not PY3 and isinstance(msg, unicode):
            # Cookie constructor doesn't accept unicode strings
            # under Python 2.x for some reason
            msg = msg.encode('utf8', 'replace')
        try:
            identity, msg = msg.split(':', 1)
            self.session.session = cast_unicode(identity, 'ascii')
        except Exception:
            logging.error("First ws message didn't have the form 'identity:[cookie]' - %r", msg)
        
        try:
            self.request._cookies = Cookie.SimpleCookie(msg)
        except:
            self.log.warn("couldn't parse cookie string: %s",msg, exc_info=True) 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def read(self, fp, **kwargs):
        """Read a notebook from a file like object"""
        nbs = fp.read()
        if not py3compat.PY3 and not isinstance(nbs, unicode):
            nbs = py3compat.str_to_unicode(nbs)
        return self.reads(nbs, **kwargs) 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def write(self, nb, fp, **kwargs):
        """Write a notebook to a file like object"""
        nbs = self.writes(nb,**kwargs)
        if not py3compat.PY3 and not isinstance(nbs, unicode):
            # this branch is likely only taken for JSON on Python 2
            nbs = py3compat.str_to_unicode(nbs)
        return fp.write(nbs) 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def test_cast_small(self):
        """Integer casts small longs to int"""
        if py3compat.PY3:
            raise SkipTest("not relevant on py3")

        self.obj.value = 100L
        self.assertEqual(type(self.obj.value), int) 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def test_raw_input(self):
        """ Does the in-process kernel handle raw_input correctly?
        """
        io = StringIO('foobar\n')
        sys_stdin = sys.stdin
        sys.stdin = io
        try:
            if py3compat.PY3:
                self.kc.execute('x = input()')
            else:
                self.kc.execute('x = raw_input()')
        finally:
            sys.stdin = sys_stdin
        self.assertEqual(self.km.kernel.shell.user_ns.get('x'), 'foobar') 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def test_info():
    "Check that Inspector.info fills out various fields as expected."
    i = inspector.info(Call, oname='Call')
    nt.assert_equal(i['type_name'], 'type')
    expted_class = str(type(type))  # <class 'type'> (Python 3) or <type 'type'>
    nt.assert_equal(i['base_class'], expted_class)
    nt.assert_equal(i['string_form'], "<class 'IPython.core.tests.test_oinspect.Call'>")
    fname = __file__
    if fname.endswith(".pyc"):
        fname = fname[:-1]
    # case-insensitive comparison needed on some filesystems
    # e.g. Windows:
    nt.assert_equal(i['file'].lower(), fname.lower())
    nt.assert_equal(i['definition'], 'Call(self, *a, **kw)\n')
    nt.assert_equal(i['docstring'], Call.__doc__)
    nt.assert_equal(i['source'], None)
    nt.assert_true(i['isclass'])
    nt.assert_equal(i['init_definition'], "Call(self, x, y=1)\n")
    nt.assert_equal(i['init_docstring'], Call.__init__.__doc__)

    i = inspector.info(Call, detail_level=1)
    nt.assert_not_equal(i['source'], None)
    nt.assert_equal(i['docstring'], None)

    c = Call(1)
    c.__doc__ = "Modified instance docstring"
    i = inspector.info(c)
    nt.assert_equal(i['type_name'], 'Call')
    nt.assert_equal(i['docstring'], "Modified instance docstring")
    nt.assert_equal(i['class_docstring'], Call.__doc__)
    nt.assert_equal(i['init_docstring'], Call.__init__.__doc__)
    nt.assert_equal(i['call_docstring'], c.__call__.__doc__)

    # Test old-style classes, which for example may not have an __init__ method.
    if not py3compat.PY3:
        i = inspector.info(OldStyle)
        nt.assert_equal(i['type_name'], 'classobj')

        i = inspector.info(OldStyle())
        nt.assert_equal(i['type_name'], 'instance')
        nt.assert_equal(i['docstring'], OldStyle.__doc__) 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def setUp():
    # Check we're in a proper Python 2 environment (some imports, such
    # as GTK, can change the default encoding, which can hide bugs.)
    nt.assert_equal(sys.getdefaultencoding(), "utf-8" if py3compat.PY3 else "ascii") 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def setUp():
    nt.assert_equal(sys.getdefaultencoding(), "utf-8" if py3compat.PY3 else "ascii") 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def _exec_file(self, fname):
        try:
            full_filename = filefind(fname, [u'.', self.ipython_dir])
        except IOError as e:
            self.log.warn("File not found: %r"%fname)
            return
        # Make sure that the running script gets a proper sys.argv as if it
        # were run from a system shell.
        save_argv = sys.argv
        sys.argv = [full_filename] + self.extra_args[1:]
        # protect sys.argv from potential unicode strings on Python 2:
        if not py3compat.PY3:
            sys.argv = [ py3compat.cast_bytes(a) for a in sys.argv ]
        try:
            if os.path.isfile(full_filename):
                self.log.info("Running file in user namespace: %s" %
                              full_filename)
                # Ensure that __file__ is always defined to match Python
                # behavior.
                with preserve_keys(self.shell.user_ns, '__file__'):
                    self.shell.user_ns['__file__'] = fname
                    if full_filename.endswith('.ipy'):
                        self.shell.safe_execfile_ipy(full_filename)
                    else:
                        # default to python, even without extension
                        self.shell.safe_execfile(full_filename,
                                                 self.shell.user_ns)
        finally:
            sys.argv = save_argv 

# 需要导入模块: from IPython.utils import py3compat [as 别名]
# 或者: from IPython.utils.py3compat import PY3 [as 别名]
def arg_split(s, posix=False, strict=True):
    """Split a command line's arguments in a shell-like manner.

    This is a modified version of the standard library's shlex.split()
    function, but with a default of posix=False for splitting, so that quotes
    in inputs are respected.

    if strict=False, then any errors shlex.split would raise will result in the
    unparsed remainder being the last element of the list, rather than raising.
    This is because we sometimes use arg_split to parse things other than
    command-line args.
    """

    # Unfortunately, python's shlex module is buggy with unicode input:
    # http://bugs.python.org/issue1170
    # At least encoding the input when it's unicode seems to help, but there
    # may be more problems lurking.  Apparently this is fixed in python3.
    is_unicode = False
    if (not py3compat.PY3) and isinstance(s, unicode):
        is_unicode = True
        s = s.encode('utf-8')
    lex = shlex.shlex(s, posix=posix)
    lex.whitespace_split = True
    # Extract tokens, ensuring that things like leaving open quotes
    # does not cause this to raise.  This is important, because we
    # sometimes pass Python source through this (e.g. %timeit f(" ")),
    # and it shouldn't raise an exception.
    # It may be a bad idea to parse things that are not command-line args
    # through this function, but we do, so let's be safe about it.
    lex.commenters='' #fix for GH-1269
    tokens = []
    while True:
        try:
            tokens.append(next(lex))
        except StopIteration:
            break
        except ValueError:
            if strict:
                raise
            # couldn't parse, get remaining blob as last token
            tokens.append(lex.token)
            break
    
    if is_unicode:
        # Convert the tokens back to unicode.
        tokens = [x.decode('utf-8') for x in tokens]
    return tokens