FIX: ExceptionFormatter infinite recursion traceback

loguru/_better_exceptions.py

@@ -118,6 +118,10 @@ def tokenize(source):
             return
 
 
+class ExceptionFormatterRecursionError(Exception):
+    pass
+
+
 class ExceptionFormatter:
     _default_theme = {
         "introduction": "\x1b[33m\x1b[1m{}\x1b[0m",

loguru/_logger.py

@@ -97,7 +97,7 @@
 from threading import current_thread
 
 from . import _asyncio_loop, _colorama, _defaults, _filters
-from ._better_exceptions import ExceptionFormatter
+from ._better_exceptions import ExceptionFormatter, ExceptionFormatterRecursionError
 from ._colorizer import Colorizer
 from ._contextvars import ContextVar
 from ._datetime import aware_now
@@ -1219,6 +1219,7 @@ def catch(
         class Catcher:
             def __init__(self, from_decorator):
                 self._from_decorator = from_decorator
+                self._already_logging_exception = False
 
             def __enter__(self):
                 return None
@@ -1239,8 +1240,13 @@ def __exit__(self, type_, value, traceback_):
                 if from_decorator:
                     depth += 1
 
-                catch_options = [(type_, value, traceback_), depth, True] + options
-                logger._log(level, from_decorator, catch_options, message, (), {})
+                if not self._already_logging_exception:
+                    self._already_logging_exception = True
+                    catch_options = [(type_, value, traceback_), depth, True] + options
+                    logger._log(level, from_decorator, catch_options, message, (), {})
+                    self._already_logging_exception = False
+                else:
+                    raise ExceptionFormatterRecursionError()
 
                 if onerror is not None:
                     onerror(value)