Parse escape codes in Pretty repr (#2470)

* Parse ANSI escape codes in pretty reprs

* Fix mypy issue

* Test parse escape codes in Pretty repr

* Add CHANGELOG entry for parsing escape codes in Pretty reprs

Co-authored-by: Will McGugan <willmcgugan@gmail.com>

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Parse ANSI escape sequences in pretty repr https://github.com/Textualize/rich/pull/2470
 - Add support for `FORCE_COLOR` env var https://github.com/Textualize/rich/pull/2449
 
 ### Fixed

rich/pretty.py

@@ -333,7 +333,7 @@ def __rich_console__(
             max_depth=self.max_depth,
             expand_all=self.expand_all,
         )
-        pretty_text = Text(
+        pretty_text = Text.from_ansi(
             pretty_str,
             justify=self.justify or options.justify,
             overflow=self.overflow or options.overflow,
@@ -1007,4 +1007,10 @@ class StockKeepingUnit(NamedTuple):
 
     from rich import print
 
-    print(Pretty(data, indent_guides=True, max_string=20))
+    # print(Pretty(data, indent_guides=True, max_string=20))
+
+    class Thing:
+        def __repr__(self) -> str:
+            return "Hello\x1b[38;5;239m World!"
+
+    print(Pretty(Thing()))

rich/repr.py

@@ -1,21 +1,18 @@
-from functools import partial
 import inspect
-import sys
-
+from functools import partial
 from typing import (
     Any,
     Callable,
     Iterable,
     List,
     Optional,
-    overload,
-    Union,
     Tuple,
     Type,
     TypeVar,
+    Union,
+    overload,
 )
 
-
 T = TypeVar("T")
 
 

tests/test_pretty.py

@@ -266,6 +266,20 @@ def test_small_width():
     assert result == expected
 
 
+def test_ansi_in_pretty_repr():
+    class Hello:
+        def __repr__(self):
+            return "Hello \x1b[38;5;239mWorld!"
+
+    pretty = Pretty(Hello())
+
+    console = Console(file=io.StringIO(), record=True)
+    console.print(pretty)
+    result = console.export_text()
+
+    assert result == "Hello World!\n"
+
+
 @skip_py36
 def test_broken_repr():
     class BrokenRepr: