Add rich.pretty support

CHANGELOG.md

@@ -2,7 +2,10 @@
 
 ## [Unreleased][unreleased]
 
-N/A
+### Added
+
+- Support for `rich.pretty` to `autorepr` and `ReprHelperMixin`.
+- `RichReprHelper`.
 
 ## [2.0.0] - 2023-12-30
 

doc/conf.py

@@ -62,6 +62,7 @@
 intersphinx_mapping = {
     "python": ("https://docs.python.org/3", None),
     "ipython": ("https://ipython.readthedocs.io/en/stable/", None),
+    "rich": ("https://rich.readthedocs.io/en/stable/", None),
 }
 
 autodoc_member_order = "bysource"

doc/usage/automatic.rst

@@ -35,7 +35,8 @@ Pretty Printer
 --------------
 
 :func:`~represent.core.autorepr` also provides a
-:code:`_repr_pretty_` method for :mod:`IPython.lib.pretty`.
+:code:`_repr_pretty_` method for :mod:`IPython.lib.pretty` and a
+:code:`__rich_repr__` method for :mod:`rich.pretty`.
 
 Therefore, with the simple example above, we can pretty print:
 
@@ -53,6 +54,21 @@ Therefore, with the simple example above, we can pretty print:
               width=15,
               height=4.5)
 
+.. code:: python
+
+    from rich.pretty import pprint
+
+    pprint(rect)
+
+.. code-block:: none
+
+    Rectangle(
+        name='Something really long to force pretty printing line break',
+        color='red',
+        width=15,
+        height=4.5
+    )
+
 Positional Arguments
 --------------------
 

doc/usage/helper.rst

@@ -9,9 +9,10 @@ Helper Mixin
 If you cannot use, or prefer not to use :class:`~represent.core.ReprMixin`,
 there is an alternative declarative syntax.
 
-:class:`~represent.core.ReprHelperMixin` provides ``__repr__`` and
-``_repr_pretty_`` (for :mod:`IPython.lib.pretty`), both of which look for a
-user defined function called ``_repr_helper_``.
+:class:`~represent.core.ReprHelperMixin` provides ``__repr__``,
+``_repr_pretty_`` (for :mod:`IPython.lib.pretty`), and ``__rich_repr__`` (for
+:mod:`rich.pretty`), all of which use a user defined function called
+``_repr_helper_``.
 
 All possible method calls on the passed object `r` are shown here:
 
@@ -80,5 +81,6 @@ Manual Helpers
 
 To use the declarative style without using
 :class:`~represent.core.ReprHelperMixin`, refer to the documentation for
-:class:`~represent.helper.ReprHelper` and
-:class:`~represent.helper.PrettyReprHelper`.
+:class:`~represent.helper.ReprHelper`,
+:class:`~represent.helper.PrettyReprHelper`, and
+:class:`~represent.helper.RichReprHelper`.

pyproject.toml

@@ -31,6 +31,7 @@ Documentation = "https://represent.readthedocs.io"
 test = [
     "ipython",
     "pytest",
+    "rich",
 ]
 docstest = [
     "parver",
@@ -54,3 +55,6 @@ source = ["represent", ".tox/*/lib/python*/site-packages/represent"]
 [tool.coverage.report]
 precision = 1
 exclude_lines = ["pragma: no cover", "pass"]
+
+[tool.isort]
+profile = "black"

src/represent/core.py

@@ -2,26 +2,31 @@
 from functools import partial
 from reprlib import recursive_repr
 
-from .helper import PrettyReprHelper, ReprHelper
+from .helper import PrettyReprHelper, ReprHelper, RichReprHelper
 from .utilities import ReprInfo
 
 __all__ = ["ReprHelperMixin", "autorepr"]
 
 
 _DEFAULT_INCLUDE_PRETTY = True
+_DEFAULT_INCLUDE_RICH = True
 
 
 def autorepr(*args, **kwargs):
     """Class decorator to construct :code:`__repr__` **automatically**
     based on the arguments to ``__init__``.
 
-    :code:`_repr_pretty_` for :py:mod:`IPython.lib.pretty` is also constructed,
+    :code:`_repr_pretty_` for :py:mod:`IPython.lib.pretty` is constructed
     unless `include_pretty=False`.
 
+    :code:`__rich_repr__` for :py:mod:`rich.pretty` is constructed
+    unless `include_rich=False`.
+
     :param positional: Mark arguments as positional by number, or a list of
         argument names.
     :param include_pretty: Add a ``_repr_pretty_`` to the class (defaults to
         True).
+    :param include_rich: Add a ``__rich_repr__`` to the class (defaults to True).
 
     Example:
 
@@ -51,6 +56,7 @@ def autorepr(*args, **kwargs):
     """
     cls = positional = None
     include_pretty = _DEFAULT_INCLUDE_PRETTY
+    include_rich = _DEFAULT_INCLUDE_RICH
 
     # We allow using @autorepr or @autorepr(positional=..., ...), so check
     # how we were called.
@@ -68,7 +74,7 @@ def autorepr(*args, **kwargs):
             )
 
     elif not args and kwargs:
-        valid_kwargs = {"positional", "include_pretty"}
+        valid_kwargs = {"positional", "include_pretty", "include_rich"}
         invalid_kwargs = set(kwargs) - valid_kwargs
 
         if invalid_kwargs:
@@ -77,6 +83,7 @@ def autorepr(*args, **kwargs):
 
         positional = kwargs.get("positional")
         include_pretty = kwargs.get("include_pretty", include_pretty)
+        include_rich = kwargs.get("include_rich", include_rich)
 
     elif (args and kwargs) or (not args and not kwargs):
         raise TypeError("Use bare @autorepr or @autorepr(...) with keyword args.")
@@ -87,19 +94,25 @@ def autorepr(*args, **kwargs):
     def __repr__(self):
         return self.__class__._represent.fstr.format(self=self)
 
-    _repr_pretty_ = None
+    repr_pretty = rich_repr = None
     if include_pretty:
-        _repr_pretty_ = _make_repr_pretty()
+        repr_pretty = _make_repr_pretty()
+    if include_rich:
+        rich_repr = _make_rich_repr()
 
     if cls is not None:
-        return _autorepr_decorate(cls, repr=__repr__, repr_pretty=_repr_pretty_)
+        return _autorepr_decorate(
+            cls, repr=__repr__, repr_pretty=repr_pretty, rich_repr=rich_repr
+        )
     else:
         return partial(
             _autorepr_decorate,
             repr=__repr__,
-            repr_pretty=_repr_pretty_,
+            repr_pretty=repr_pretty,
+            rich_repr=rich_repr,
             positional=positional,
             include_pretty=include_pretty,
+            include_rich=include_rich,
         )
 
 
@@ -132,6 +145,23 @@ def _repr_pretty_(self, p, cycle):
     return _repr_pretty_
 
 
+def _make_rich_repr():
+    def __rich_repr__(self):
+        """Pretty printer for :mod:`rich.pretty`"""
+        cls = self.__class__
+
+        positional_args = cls._represent.args
+        keyword_args = cls._represent.kw
+
+        for positional in positional_args:
+            yield getattr(self, positional)
+
+        for keyword in keyword_args:
+            yield keyword, getattr(self, keyword)
+
+    return __rich_repr__
+
+
 def _getparams(cls):
     signature = inspect.signature(cls)
     params = list(signature.parameters)
@@ -145,7 +175,13 @@ def _getparams(cls):
 
 
 def _autorepr_decorate(
-    cls, repr, repr_pretty, positional=None, include_pretty=_DEFAULT_INCLUDE_PRETTY
+    cls,
+    repr,
+    repr_pretty,
+    rich_repr,
+    positional=None,
+    include_pretty=_DEFAULT_INCLUDE_PRETTY,
+    include_rich=_DEFAULT_INCLUDE_RICH,
 ):
     params, kwonly = _getparams(cls)
 
@@ -194,6 +230,8 @@ def _autorepr_decorate(
     cls.__repr__ = repr
     if include_pretty:
         cls._repr_pretty_ = repr_pretty
+    if include_rich:
+        cls.__rich_repr__ = rich_repr
 
     return cls
 
@@ -228,3 +266,8 @@ def __repr__(self):
     def _repr_pretty_(self, p, cycle):
         with PrettyReprHelper(self, p, cycle) as r:
             self._repr_helper_(r)
+
+    def __rich_repr__(self):
+        r = RichReprHelper(self)
+        self._repr_helper_(r)
+        yield from r

src/represent/helper.py

@@ -2,7 +2,7 @@
 
 from .utilities import Parantheses, inherit_docstrings
 
-__all__ = ["ReprHelper", "PrettyReprHelper"]
+__all__ = ["ReprHelper", "PrettyReprHelper", "RichReprHelper"]
 
 
 class BaseReprHelper(metaclass=ABCMeta):
@@ -244,3 +244,56 @@ def close(self):
             self.p.text("...")
         clsname = self.other_cls.__name__
         self.p.end_group(len(clsname) + 1, self.parantheses.right)
+
+
+class RawReprWrapper:
+    """rich.pretty calls repr for us, so to support raw=True we need a wrapper
+    object which returns str() when repr() is called.
+    """
+
+    def __init__(self, o: object):
+        self._object = o
+
+    def __repr__(self):
+        return str(self._object)
+
+
+class RichReprHelper(BaseReprHelper):
+    """Help manual construction of :code:`__rich_repr__` for
+    :py:mod:`rich.pretty`.
+
+    It should be used as follows:
+
+    .. code-block:: python
+
+        def __rich_repr__(self)
+            r = RichReprHelper(self)
+            r.keyword_from_attr('name')
+            yield from r
+    """
+
+    def __init__(self, other):
+        self._tuples = []
+        super().__init__(other)
+
+    def positional_from_attr(self, attr_name):
+        if self.keyword_started:
+            raise ValueError("positional arguments cannot follow keyword arguments")
+        self._tuples.append((None, getattr(self.other, attr_name)))
+
+    def positional_with_value(self, value, raw=False):
+        if self.keyword_started:
+            raise ValueError("positional arguments cannot follow keyword arguments")
+        self._tuples.append((None, RawReprWrapper(value) if raw else value))
+
+    def keyword_from_attr(self, name, attr_name=None):
+        self.keyword_started = True
+        attr_name = attr_name or name
+        self._tuples.append((name, getattr(self.other, attr_name)))
+
+    def keyword_with_value(self, name, value, raw=False):
+        self.keyword_started = True
+        return self._tuples.append((name, RawReprWrapper(value) if raw else value))
+
+    def __iter__(self):
+        return iter(self._tuples)