fix ya.make

1 files changed, 0 insertions, 951 deletions

diff --git a/contrib/python/ipython/py3/IPython/lib/pretty.py b/contrib/python/ipython/py3/IPython/lib/pretty.py
deleted file mode 100644
index 72f143522d..0000000000
--- a/contrib/python/ipython/py3/IPython/lib/pretty.py
+++ /dev/null
@@ -1,951 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-Python advanced pretty printer.  This pretty printer is intended to
-replace the old `pprint` python module which does not allow developers
-to provide their own pretty print callbacks.
-
-This module is based on ruby's `prettyprint.rb` library by `Tanaka Akira`.
-
-
-Example Usage
--------------
-
-To directly print the representation of an object use `pprint`::
-
-    from pretty import pprint
-    pprint(complex_object)
-
-To get a string of the output use `pretty`::
-
-    from pretty import pretty
-    string = pretty(complex_object)
-
-
-Extending
----------
-
-The pretty library allows developers to add pretty printing rules for their
-own objects.  This process is straightforward.  All you have to do is to
-add a `_repr_pretty_` method to your object and call the methods on the
-pretty printer passed::
-
-    class MyObject(object):
-
-        def _repr_pretty_(self, p, cycle):
-            ...
-
-Here's an example for a class with a simple constructor::
-
-    class MySimpleObject:
-
-        def __init__(self, a, b, *, c=None):
-            self.a = a
-            self.b = b
-            self.c = c
-
-        def _repr_pretty_(self, p, cycle):
-            ctor = CallExpression.factory(self.__class__.__name__)
-            if self.c is None:
-                p.pretty(ctor(a, b))
-            else:
-                p.pretty(ctor(a, b, c=c))
-
-Here is an example implementation of a `_repr_pretty_` method for a list
-subclass::
-
-    class MyList(list):
-
-        def _repr_pretty_(self, p, cycle):
-            if cycle:
-                p.text('MyList(...)')
-            else:
-                with p.group(8, 'MyList([', '])'):
-                    for idx, item in enumerate(self):
-                        if idx:
-                            p.text(',')
-                            p.breakable()
-                        p.pretty(item)
-
-The `cycle` parameter is `True` if pretty detected a cycle.  You *have* to
-react to that or the result is an infinite loop.  `p.text()` just adds
-non breaking text to the output, `p.breakable()` either adds a whitespace
-or breaks here.  If you pass it an argument it's used instead of the
-default space.  `p.pretty` prettyprints another object using the pretty print
-method.
-
-The first parameter to the `group` function specifies the extra indentation
-of the next line.  In this example the next item will either be on the same
-line (if the items are short enough) or aligned with the right edge of the
-opening bracket of `MyList`.
-
-If you just want to indent something you can use the group function
-without open / close parameters.  You can also use this code::
-
-    with p.indent(2):
-        ...
-
-Inheritance diagram:
-
-.. inheritance-diagram:: IPython.lib.pretty
-   :parts: 3
-
-:copyright: 2007 by Armin Ronacher.
-            Portions (c) 2009 by Robert Kern.
-:license: BSD License.
-"""
-
-from contextlib import contextmanager
-import datetime
-import os
-import re
-import sys
-import types
-from collections import deque
-from inspect import signature
-from io import StringIO
-from warnings import warn
-
-from IPython.utils.decorators import undoc
-from IPython.utils.py3compat import PYPY
-
-__all__ = ['pretty', 'pprint', 'PrettyPrinter', 'RepresentationPrinter',
-    'for_type', 'for_type_by_name', 'RawText', 'RawStringLiteral', 'CallExpression']
-
-
-MAX_SEQ_LENGTH = 1000
-_re_pattern_type = type(re.compile(''))
-
-def _safe_getattr(obj, attr, default=None):
-    """Safe version of getattr.
-
-    Same as getattr, but will return ``default`` on any Exception,
-    rather than raising.
-    """
-    try:
-        return getattr(obj, attr, default)
-    except Exception:
-        return default
-
-@undoc
-class CUnicodeIO(StringIO):
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        warn(("CUnicodeIO is deprecated since IPython 6.0. "
-              "Please use io.StringIO instead."),
-             DeprecationWarning, stacklevel=2)
-
-def _sorted_for_pprint(items):
-    """
-    Sort the given items for pretty printing. Since some predictable
-    sorting is better than no sorting at all, we sort on the string
-    representation if normal sorting fails.
-    """
-    items = list(items)
-    try:
-        return sorted(items)
-    except Exception:
-        try:
-            return sorted(items, key=str)
-        except Exception:
-            return items
-
-def pretty(obj, verbose=False, max_width=79, newline='\n', max_seq_length=MAX_SEQ_LENGTH):
-    """
-    Pretty print the object's representation.
-    """
-    stream = StringIO()
-    printer = RepresentationPrinter(stream, verbose, max_width, newline, max_seq_length=max_seq_length)
-    printer.pretty(obj)
-    printer.flush()
-    return stream.getvalue()
-
-
-def pprint(obj, verbose=False, max_width=79, newline='\n', max_seq_length=MAX_SEQ_LENGTH):
-    """
-    Like `pretty` but print to stdout.
-    """
-    printer = RepresentationPrinter(sys.stdout, verbose, max_width, newline, max_seq_length=max_seq_length)
-    printer.pretty(obj)
-    printer.flush()
-    sys.stdout.write(newline)
-    sys.stdout.flush()
-
-class _PrettyPrinterBase(object):
-
-    @contextmanager
-    def indent(self, indent):
-        """with statement support for indenting/dedenting."""
-        self.indentation += indent
-        try:
-            yield
-        finally:
-            self.indentation -= indent
-
-    @contextmanager
-    def group(self, indent=0, open='', close=''):
-        """like begin_group / end_group but for the with statement."""
-        self.begin_group(indent, open)
-        try:
-            yield
-        finally:
-            self.end_group(indent, close)
-
-class PrettyPrinter(_PrettyPrinterBase):
-    """
-    Baseclass for the `RepresentationPrinter` prettyprinter that is used to
-    generate pretty reprs of objects.  Contrary to the `RepresentationPrinter`
-    this printer knows nothing about the default pprinters or the `_repr_pretty_`
-    callback method.
-    """
-
-    def __init__(self, output, max_width=79, newline='\n', max_seq_length=MAX_SEQ_LENGTH):
-        self.output = output
-        self.max_width = max_width
-        self.newline = newline
-        self.max_seq_length = max_seq_length
-        self.output_width = 0
-        self.buffer_width = 0
-        self.buffer = deque()
-
-        root_group = Group(0)
-        self.group_stack = [root_group]
-        self.group_queue = GroupQueue(root_group)
-        self.indentation = 0
-
-    def _break_one_group(self, group):
-        while group.breakables:
-            x = self.buffer.popleft()
-            self.output_width = x.output(self.output, self.output_width)
-            self.buffer_width -= x.width
-        while self.buffer and isinstance(self.buffer[0], Text):
-            x = self.buffer.popleft()
-            self.output_width = x.output(self.output, self.output_width)
-            self.buffer_width -= x.width
-
-    def _break_outer_groups(self):
-        while self.max_width < self.output_width + self.buffer_width:
-            group = self.group_queue.deq()
-            if not group:
-                return
-            self._break_one_group(group)
-
-    def text(self, obj):
-        """Add literal text to the output."""
-        width = len(obj)
-        if self.buffer:
-            text = self.buffer[-1]
-            if not isinstance(text, Text):
-                text = Text()
-                self.buffer.append(text)
-            text.add(obj, width)
-            self.buffer_width += width
-            self._break_outer_groups()
-        else:
-            self.output.write(obj)
-            self.output_width += width
-
-    def breakable(self, sep=' '):
-        """
-        Add a breakable separator to the output.  This does not mean that it
-        will automatically break here.  If no breaking on this position takes
-        place the `sep` is inserted which default to one space.
-        """
-        width = len(sep)
-        group = self.group_stack[-1]
-        if group.want_break:
-            self.flush()
-            self.output.write(self.newline)
-            self.output.write(' ' * self.indentation)
-            self.output_width = self.indentation
-            self.buffer_width = 0
-        else:
-            self.buffer.append(Breakable(sep, width, self))
-            self.buffer_width += width
-            self._break_outer_groups()
-
-    def break_(self):
-        """
-        Explicitly insert a newline into the output, maintaining correct indentation.
-        """
-        group = self.group_queue.deq()
-        if group:
-            self._break_one_group(group)
-        self.flush()
-        self.output.write(self.newline)
-        self.output.write(' ' * self.indentation)
-        self.output_width = self.indentation
-        self.buffer_width = 0
-
-
-    def begin_group(self, indent=0, open=''):
-        """
-        Begin a group.
-        The first parameter specifies the indentation for the next line (usually
-        the width of the opening text), the second the opening text.  All
-        parameters are optional.
-        """
-        if open:
-            self.text(open)
-        group = Group(self.group_stack[-1].depth + 1)
-        self.group_stack.append(group)
-        self.group_queue.enq(group)
-        self.indentation += indent
-
-    def _enumerate(self, seq):
-        """like enumerate, but with an upper limit on the number of items"""
-        for idx, x in enumerate(seq):
-            if self.max_seq_length and idx >= self.max_seq_length:
-                self.text(',')
-                self.breakable()
-                self.text('...')
-                return
-            yield idx, x
-
-    def end_group(self, dedent=0, close=''):
-        """End a group. See `begin_group` for more details."""
-        self.indentation -= dedent
-        group = self.group_stack.pop()
-        if not group.breakables:
-            self.group_queue.remove(group)
-        if close:
-            self.text(close)
-
-    def flush(self):
-        """Flush data that is left in the buffer."""
-        for data in self.buffer:
-            self.output_width += data.output(self.output, self.output_width)
-        self.buffer.clear()
-        self.buffer_width = 0
-
-
-def _get_mro(obj_class):
-    """ Get a reasonable method resolution order of a class and its superclasses
-    for both old-style and new-style classes.
-    """
-    if not hasattr(obj_class, '__mro__'):
-        # Old-style class. Mix in object to make a fake new-style class.
-        try:
-            obj_class = type(obj_class.__name__, (obj_class, object), {})
-        except TypeError:
-            # Old-style extension type that does not descend from object.
-            # FIXME: try to construct a more thorough MRO.
-            mro = [obj_class]
-        else:
-            mro = obj_class.__mro__[1:-1]
-    else:
-        mro = obj_class.__mro__
-    return mro
-
-
-class RepresentationPrinter(PrettyPrinter):
-    """
-    Special pretty printer that has a `pretty` method that calls the pretty
-    printer for a python object.
-
-    This class stores processing data on `self` so you must *never* use
-    this class in a threaded environment.  Always lock it or reinstanciate
-    it.
-
-    Instances also have a verbose flag callbacks can access to control their
-    output.  For example the default instance repr prints all attributes and
-    methods that are not prefixed by an underscore if the printer is in
-    verbose mode.
-    """
-
-    def __init__(self, output, verbose=False, max_width=79, newline='\n',
-        singleton_pprinters=None, type_pprinters=None, deferred_pprinters=None,
-        max_seq_length=MAX_SEQ_LENGTH):
-
-        PrettyPrinter.__init__(self, output, max_width, newline, max_seq_length=max_seq_length)
-        self.verbose = verbose
-        self.stack = []
-        if singleton_pprinters is None:
-            singleton_pprinters = _singleton_pprinters.copy()
-        self.singleton_pprinters = singleton_pprinters
-        if type_pprinters is None:
-            type_pprinters = _type_pprinters.copy()
-        self.type_pprinters = type_pprinters
-        if deferred_pprinters is None:
-            deferred_pprinters = _deferred_type_pprinters.copy()
-        self.deferred_pprinters = deferred_pprinters
-
-    def pretty(self, obj):
-        """Pretty print the given object."""
-        obj_id = id(obj)
-        cycle = obj_id in self.stack
-        self.stack.append(obj_id)
-        self.begin_group()
-        try:
-            obj_class = _safe_getattr(obj, '__class__', None) or type(obj)
-            # First try to find registered singleton printers for the type.
-            try:
-                printer = self.singleton_pprinters[obj_id]
-            except (TypeError, KeyError):
-                pass
-            else:
-                return printer(obj, self, cycle)
-            # Next walk the mro and check for either:
-            #   1) a registered printer
-            #   2) a _repr_pretty_ method
-            for cls in _get_mro(obj_class):
-                if cls in self.type_pprinters:
-                    # printer registered in self.type_pprinters
-                    return self.type_pprinters[cls](obj, self, cycle)
-                else:
-                    # deferred printer
-                    printer = self._in_deferred_types(cls)
-                    if printer is not None:
-                        return printer(obj, self, cycle)
-                    else:
-                        # Finally look for special method names.
-                        # Some objects automatically create any requested
-                        # attribute. Try to ignore most of them by checking for
-                        # callability.
-                        if '_repr_pretty_' in cls.__dict__:
-                            meth = cls._repr_pretty_
-                            if callable(meth):
-                                return meth(obj, self, cycle)
-                        if cls is not object \
-                                and callable(cls.__dict__.get('__repr__')):
-                            return _repr_pprint(obj, self, cycle)
-
-            return _default_pprint(obj, self, cycle)
-        finally:
-            self.end_group()
-            self.stack.pop()
-
-    def _in_deferred_types(self, cls):
-        """
-        Check if the given class is specified in the deferred type registry.
-
-        Returns the printer from the registry if it exists, and None if the
-        class is not in the registry. Successful matches will be moved to the
-        regular type registry for future use.
-        """
-        mod = _safe_getattr(cls, '__module__', None)
-        name = _safe_getattr(cls, '__name__', None)
-        key = (mod, name)
-        printer = None
-        if key in self.deferred_pprinters:
-            # Move the printer over to the regular registry.
-            printer = self.deferred_pprinters.pop(key)
-            self.type_pprinters[cls] = printer
-        return printer
-
-
-class Printable(object):
-
-    def output(self, stream, output_width):
-        return output_width
-
-
-class Text(Printable):
-
-    def __init__(self):
-        self.objs = []
-        self.width = 0
-
-    def output(self, stream, output_width):
-        for obj in self.objs:
-            stream.write(obj)
-        return output_width + self.width
-
-    def add(self, obj, width):
-        self.objs.append(obj)
-        self.width += width
-
-
-class Breakable(Printable):
-
-    def __init__(self, seq, width, pretty):
-        self.obj = seq
-        self.width = width
-        self.pretty = pretty
-        self.indentation = pretty.indentation
-        self.group = pretty.group_stack[-1]
-        self.group.breakables.append(self)
-
-    def output(self, stream, output_width):
-        self.group.breakables.popleft()
-        if self.group.want_break:
-            stream.write(self.pretty.newline)
-            stream.write(' ' * self.indentation)
-            return self.indentation
-        if not self.group.breakables:
-            self.pretty.group_queue.remove(self.group)
-        stream.write(self.obj)
-        return output_width + self.width
-
-
-class Group(Printable):
-
-    def __init__(self, depth):
-        self.depth = depth
-        self.breakables = deque()
-        self.want_break = False
-
-
-class GroupQueue(object):
-
-    def __init__(self, *groups):
-        self.queue = []
-        for group in groups:
-            self.enq(group)
-
-    def enq(self, group):
-        depth = group.depth
-        while depth > len(self.queue) - 1:
-            self.queue.append([])
-        self.queue[depth].append(group)
-
-    def deq(self):
-        for stack in self.queue:
-            for idx, group in enumerate(reversed(stack)):
-                if group.breakables:
-                    del stack[idx]
-                    group.want_break = True
-                    return group
-            for group in stack:
-                group.want_break = True
-            del stack[:]
-
-    def remove(self, group):
-        try:
-            self.queue[group.depth].remove(group)
-        except ValueError:
-            pass
-
-
-class RawText:
-    """ Object such that ``p.pretty(RawText(value))`` is the same as ``p.text(value)``.
-
-    An example usage of this would be to show a list as binary numbers, using
-    ``p.pretty([RawText(bin(i)) for i in integers])``.
-    """
-    def __init__(self, value):
-        self.value = value
-
-    def _repr_pretty_(self, p, cycle):
-        p.text(self.value)
-
-
-class CallExpression:
-    """ Object which emits a line-wrapped call expression in the form `__name(*args, **kwargs)` """
-    def __init__(__self, __name, *args, **kwargs):
-        # dunders are to avoid clashes with kwargs, as python's name manging
-        # will kick in.
-        self = __self
-        self.name = __name
-        self.args = args
-        self.kwargs = kwargs
-
-    @classmethod
-    def factory(cls, name):
-        def inner(*args, **kwargs):
-            return cls(name, *args, **kwargs)
-        return inner
-
-    def _repr_pretty_(self, p, cycle):
-        # dunders are to avoid clashes with kwargs, as python's name manging
-        # will kick in.
-
-        started = False
-        def new_item():
-            nonlocal started
-            if started:
-                p.text(",")
-                p.breakable()
-            started = True
-
-        prefix = self.name + "("
-        with p.group(len(prefix), prefix, ")"):
-            for arg in self.args:
-                new_item()
-                p.pretty(arg)
-            for arg_name, arg in self.kwargs.items():
-                new_item()
-                arg_prefix = arg_name + "="
-                with p.group(len(arg_prefix), arg_prefix):
-                    p.pretty(arg)
-
-
-class RawStringLiteral:
-    """ Wrapper that shows a string with a `r` prefix """
-    def __init__(self, value):
-        self.value = value
-
-    def _repr_pretty_(self, p, cycle):
-        base_repr = repr(self.value)
-        if base_repr[:1] in 'uU':
-            base_repr = base_repr[1:]
-            prefix = 'ur'
-        else:
-            prefix = 'r'
-        base_repr = prefix + base_repr.replace('\\\\', '\\')
-        p.text(base_repr)
-
-
-def _default_pprint(obj, p, cycle):
-    """
-    The default print function.  Used if an object does not provide one and
-    it's none of the builtin objects.
-    """
-    klass = _safe_getattr(obj, '__class__', None) or type(obj)
-    if _safe_getattr(klass, '__repr__', None) is not object.__repr__:
-        # A user-provided repr. Find newlines and replace them with p.break_()
-        _repr_pprint(obj, p, cycle)
-        return
-    p.begin_group(1, '<')
-    p.pretty(klass)
-    p.text(' at 0x%x' % id(obj))
-    if cycle:
-        p.text(' ...')
-    elif p.verbose:
-        first = True
-        for key in dir(obj):
-            if not key.startswith('_'):
-                try:
-                    value = getattr(obj, key)
-                except AttributeError:
-                    continue
-                if isinstance(value, types.MethodType):
-                    continue
-                if not first:
-                    p.text(',')
-                p.breakable()
-                p.text(key)
-                p.text('=')
-                step = len(key) + 1
-                p.indentation += step
-                p.pretty(value)
-                p.indentation -= step
-                first = False
-    p.end_group(1, '>')
-
-
-def _seq_pprinter_factory(start, end):
-    """
-    Factory that returns a pprint function useful for sequences.  Used by
-    the default pprint for tuples and lists.
-    """
-    def inner(obj, p, cycle):
-        if cycle:
-            return p.text(start + '...' + end)
-        step = len(start)
-        p.begin_group(step, start)
-        for idx, x in p._enumerate(obj):
-            if idx:
-                p.text(',')
-                p.breakable()
-            p.pretty(x)
-        if len(obj) == 1 and isinstance(obj, tuple):
-            # Special case for 1-item tuples.
-            p.text(',')
-        p.end_group(step, end)
-    return inner
-
-
-def _set_pprinter_factory(start, end):
-    """
-    Factory that returns a pprint function useful for sets and frozensets.
-    """
-    def inner(obj, p, cycle):
-        if cycle:
-            return p.text(start + '...' + end)
-        if len(obj) == 0:
-            # Special case.
-            p.text(type(obj).__name__ + '()')
-        else:
-            step = len(start)
-            p.begin_group(step, start)
-            # Like dictionary keys, we will try to sort the items if there aren't too many
-            if not (p.max_seq_length and len(obj) >= p.max_seq_length):
-                items = _sorted_for_pprint(obj)
-            else:
-                items = obj
-            for idx, x in p._enumerate(items):
-                if idx:
-                    p.text(',')
-                    p.breakable()
-                p.pretty(x)
-            p.end_group(step, end)
-    return inner
-
-
-def _dict_pprinter_factory(start, end):
-    """
-    Factory that returns a pprint function used by the default pprint of
-    dicts and dict proxies.
-    """
-    def inner(obj, p, cycle):
-        if cycle:
-            return p.text('{...}')
-        step = len(start)
-        p.begin_group(step, start)
-        keys = obj.keys()
-        for idx, key in p._enumerate(keys):
-            if idx:
-                p.text(',')
-                p.breakable()
-            p.pretty(key)
-            p.text(': ')
-            p.pretty(obj[key])
-        p.end_group(step, end)
-    return inner
-
-
-def _super_pprint(obj, p, cycle):
-    """The pprint for the super type."""
-    p.begin_group(8, '<super: ')
-    p.pretty(obj.__thisclass__)
-    p.text(',')
-    p.breakable()
-    if PYPY: # In PyPy, super() objects don't have __self__ attributes
-        dself = obj.__repr__.__self__
-        p.pretty(None if dself is obj else dself)
-    else:
-        p.pretty(obj.__self__)
-    p.end_group(8, '>')
-
-
-
-class _ReFlags:
-    def __init__(self, value):
-        self.value = value
-
-    def _repr_pretty_(self, p, cycle):
-        done_one = False
-        for flag in ('TEMPLATE', 'IGNORECASE', 'LOCALE', 'MULTILINE', 'DOTALL',
-            'UNICODE', 'VERBOSE', 'DEBUG'):
-            if self.value & getattr(re, flag):
-                if done_one:
-                    p.text('|')
-                p.text('re.' + flag)
-                done_one = True
-
-
-def _re_pattern_pprint(obj, p, cycle):
-    """The pprint function for regular expression patterns."""
-    re_compile = CallExpression.factory('re.compile')
-    if obj.flags:
-        p.pretty(re_compile(RawStringLiteral(obj.pattern), _ReFlags(obj.flags)))
-    else:
-        p.pretty(re_compile(RawStringLiteral(obj.pattern)))
-
-
-def _types_simplenamespace_pprint(obj, p, cycle):
-    """The pprint function for types.SimpleNamespace."""
-    namespace = CallExpression.factory('namespace')
-    if cycle:
-        p.pretty(namespace(RawText("...")))
-    else:
-        p.pretty(namespace(**obj.__dict__))
-
-
-def _type_pprint(obj, p, cycle):
-    """The pprint for classes and types."""
-    # Heap allocated types might not have the module attribute,
-    # and others may set it to None.
-
-    # Checks for a __repr__ override in the metaclass. Can't compare the
-    # type(obj).__repr__ directly because in PyPy the representation function
-    # inherited from type isn't the same type.__repr__
-    if [m for m in _get_mro(type(obj)) if "__repr__" in vars(m)][:1] != [type]:
-        _repr_pprint(obj, p, cycle)
-        return
-
-    mod = _safe_getattr(obj, '__module__', None)
-    try:
-        name = obj.__qualname__
-        if not isinstance(name, str):
-            # This can happen if the type implements __qualname__ as a property
-            # or other descriptor in Python 2.
-            raise Exception("Try __name__")
-    except Exception:
-        name = obj.__name__
-        if not isinstance(name, str):
-            name = '<unknown type>'
-
-    if mod in (None, '__builtin__', 'builtins', 'exceptions'):
-        p.text(name)
-    else:
-        p.text(mod + '.' + name)
-
-
-def _repr_pprint(obj, p, cycle):
-    """A pprint that just redirects to the normal repr function."""
-    # Find newlines and replace them with p.break_()
-    output = repr(obj)
-    lines = output.splitlines()
-    with p.group():
-        for idx, output_line in enumerate(lines):
-            if idx:
-                p.break_()
-            p.text(output_line)
-
-
-def _function_pprint(obj, p, cycle):
-    """Base pprint for all functions and builtin functions."""
-    name = _safe_getattr(obj, '__qualname__', obj.__name__)
-    mod = obj.__module__
-    if mod and mod not in ('__builtin__', 'builtins', 'exceptions'):
-        name = mod + '.' + name
-    try:
-       func_def = name + str(signature(obj))
-    except ValueError:
-       func_def = name
-    p.text('<function %s>' % func_def)
-
-
-def _exception_pprint(obj, p, cycle):
-    """Base pprint for all exceptions."""
-    name = getattr(obj.__class__, '__qualname__', obj.__class__.__name__)
-    if obj.__class__.__module__ not in ('exceptions', 'builtins'):
-        name = '%s.%s' % (obj.__class__.__module__, name)
-
-    p.pretty(CallExpression(name, *getattr(obj, 'args', ())))
-
-
-#: the exception base
-try:
-    _exception_base = BaseException
-except NameError:
-    _exception_base = Exception
-
-
-#: printers for builtin types
-_type_pprinters = {
-    int:                        _repr_pprint,
-    float:                      _repr_pprint,
-    str:                        _repr_pprint,
-    tuple:                      _seq_pprinter_factory('(', ')'),
-    list:                       _seq_pprinter_factory('[', ']'),
-    dict:                       _dict_pprinter_factory('{', '}'),
-    set:                        _set_pprinter_factory('{', '}'),
-    frozenset:                  _set_pprinter_factory('frozenset({', '})'),
-    super:                      _super_pprint,
-    _re_pattern_type:           _re_pattern_pprint,
-    type:                       _type_pprint,
-    types.FunctionType:         _function_pprint,
-    types.BuiltinFunctionType:  _function_pprint,
-    types.MethodType:           _repr_pprint,
-    types.SimpleNamespace:      _types_simplenamespace_pprint,
-    datetime.datetime:          _repr_pprint,
-    datetime.timedelta:         _repr_pprint,
-    _exception_base:            _exception_pprint
-}
-
-# render os.environ like a dict
-_env_type = type(os.environ)
-# future-proof in case os.environ becomes a plain dict?
-if _env_type is not dict:
-    _type_pprinters[_env_type] = _dict_pprinter_factory('environ{', '}')
-
-try:
-    # In PyPy, types.DictProxyType is dict, setting the dictproxy printer
-    # using dict.setdefault avoids overwriting the dict printer
-    _type_pprinters.setdefault(types.DictProxyType,
-                               _dict_pprinter_factory('dict_proxy({', '})'))
-    _type_pprinters[types.ClassType] = _type_pprint
-    _type_pprinters[types.SliceType] = _repr_pprint
-except AttributeError: # Python 3
-    _type_pprinters[types.MappingProxyType] = \
-        _dict_pprinter_factory('mappingproxy({', '})')
-    _type_pprinters[slice] = _repr_pprint
-
-_type_pprinters[range] = _repr_pprint
-_type_pprinters[bytes] = _repr_pprint
-
-#: printers for types specified by name
-_deferred_type_pprinters = {
-}
-
-def for_type(typ, func):
-    """
-    Add a pretty printer for a given type.
-    """
-    oldfunc = _type_pprinters.get(typ, None)
-    if func is not None:
-        # To support easy restoration of old pprinters, we need to ignore Nones.
-        _type_pprinters[typ] = func
-    return oldfunc
-
-def for_type_by_name(type_module, type_name, func):
-    """
-    Add a pretty printer for a type specified by the module and name of a type
-    rather than the type object itself.
-    """
-    key = (type_module, type_name)
-    oldfunc = _deferred_type_pprinters.get(key, None)
-    if func is not None:
-        # To support easy restoration of old pprinters, we need to ignore Nones.
-        _deferred_type_pprinters[key] = func
-    return oldfunc
-
-
-#: printers for the default singletons
-_singleton_pprinters = dict.fromkeys(map(id, [None, True, False, Ellipsis,
-                                      NotImplemented]), _repr_pprint)
-
-
-def _defaultdict_pprint(obj, p, cycle):
-    cls_ctor = CallExpression.factory(obj.__class__.__name__)
-    if cycle:
-        p.pretty(cls_ctor(RawText("...")))
-    else:
-        p.pretty(cls_ctor(obj.default_factory, dict(obj)))
-
-def _ordereddict_pprint(obj, p, cycle):
-    cls_ctor = CallExpression.factory(obj.__class__.__name__)
-    if cycle:
-        p.pretty(cls_ctor(RawText("...")))
-    elif len(obj):
-        p.pretty(cls_ctor(list(obj.items())))
-    else:
-        p.pretty(cls_ctor())
-
-def _deque_pprint(obj, p, cycle):
-    cls_ctor = CallExpression.factory(obj.__class__.__name__)
-    if cycle:
-        p.pretty(cls_ctor(RawText("...")))
-    else:
-        p.pretty(cls_ctor(list(obj)))
-
-def _counter_pprint(obj, p, cycle):
-    cls_ctor = CallExpression.factory(obj.__class__.__name__)
-    if cycle:
-        p.pretty(cls_ctor(RawText("...")))
-    elif len(obj):
-        p.pretty(cls_ctor(dict(obj)))
-    else:
-        p.pretty(cls_ctor())
-
-
-def _userlist_pprint(obj, p, cycle):
-    cls_ctor = CallExpression.factory(obj.__class__.__name__)
-    if cycle:
-        p.pretty(cls_ctor(RawText("...")))
-    else:
-        p.pretty(cls_ctor(obj.data))
-
-
-for_type_by_name('collections', 'defaultdict', _defaultdict_pprint)
-for_type_by_name('collections', 'OrderedDict', _ordereddict_pprint)
-for_type_by_name('collections', 'deque', _deque_pprint)
-for_type_by_name('collections', 'Counter', _counter_pprint)
-for_type_by_name("collections", "UserList", _userlist_pprint)
-
-if __name__ == '__main__':
-    from random import randrange
-    class Foo(object):
-        def __init__(self):
-            self.foo = 1
-            self.bar = re.compile(r'\s+')
-            self.blub = dict.fromkeys(range(30), randrange(1, 40))
-            self.hehe = 23424.234234
-            self.list = ["blub", "blah", self]
-
-        def get_foo(self):
-            print("foo")
-
-    pprint(Foo(), verbose=True)