sorted

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fall back to `sys.__stderr__` on POSIX systems when trying to get the terminal size (fix issues when Rich is piped to another process)
 - Fixed markup escaping issue https://github.com/Textualize/rich/issues/2187
 - Safari - Box appearing around SVG export https://github.com/Textualize/rich/pull/2201
+- Fixed recursion error in Jupyter progress bars https://github.com/Textualize/rich/issues/2047
 
 ## [12.2.0] - 2022-04-05
 

rich/file_proxy.py

@@ -1,5 +1,5 @@
 import io
-from typing import List, Any, IO, TYPE_CHECKING
+from typing import IO, TYPE_CHECKING, Any, List
 
 from .ansi import AnsiDecoder
 from .text import Text
@@ -48,7 +48,7 @@ class FileProxy(io.TextIOBase):
         return len(text)
 
     def flush(self) -> None:
-        buffer = self.__buffer
-        if buffer:
-            self.__console.print("".join(buffer))
-            del buffer[:]
+        output = "".join(self.__buffer)
+        if output:
+            self.__console.print(output)
+            del self.__buffer[:]

tests/test_file_proxy.py

@@ -25,3 +25,14 @@ def test_flush():
     assert file.getvalue() == ""
     file_proxy.flush()
     assert file.getvalue() == "foo\n"
+
+
+def test_new_lines():
+
+    file = io.StringIO()
+    console = Console(file=file)
+    file_proxy = FileProxy(console, file)
+    file_proxy.write("-\n-")
+    assert file.getvalue() == "-\n"
+    file_proxy.flush()
+    assert file.getvalue() == "-\n-\n"