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rl/Lib/site-packages/absl/logging/__init__.pyi

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+# Copyright 2017 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+from typing import Any, Callable, Dict, NoReturn, Optional, Tuple, TypeVar, Union
+
+from absl import flags
+
+# Logging levels.
+FATAL: int
+ERROR: int
+WARNING: int
+WARN: int  # Deprecated name.
+INFO: int
+DEBUG: int
+
+ABSL_LOGGING_PREFIX_REGEX: str
+
+LOGTOSTDERR: flags.FlagHolder[bool]
+ALSOLOGTOSTDERR: flags.FlagHolder[bool]
+LOG_DIR: flags.FlagHolder[str]
+VERBOSITY: flags.FlagHolder[int]
+LOGGER_LEVELS: flags.FlagHolder[Dict[str, str]]
+STDERRTHRESHOLD: flags.FlagHolder[str]
+SHOWPREFIXFORINFO: flags.FlagHolder[bool]
+
+
+def get_verbosity() -> int:
+  ...
+
+
+def set_verbosity(v: Union[int, str]) -> None:
+  ...
+
+
+def set_stderrthreshold(s: Union[int, str]) -> None:
+  ...
+
+
+# TODO(b/277607978): Provide actual args+kwargs shadowing stdlib's logging functions.
+def fatal(msg: Any, *args: Any, **kwargs: Any) -> NoReturn:
+  ...
+
+
+def error(msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def warning(msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def warn(msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def info(msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def debug(msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def exception(msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def log_every_n(level: int, msg: Any, n: int, *args: Any) -> None:
+  ...
+
+
+def log_every_n_seconds(
+    level: int, msg: Any, n_seconds: float, *args: Any
+) -> None:
+  ...
+
+
+def log_first_n(level: int, msg: Any, n: int, *args: Any) -> None:
+  ...
+
+
+def log_if(level: int, msg: Any, condition: Any, *args: Any) -> None:
+  ...
+
+
+def log(level: int, msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def vlog(level: int, msg: Any, *args: Any, **kwargs: Any) -> None:
+  ...
+
+
+def vlog_is_on(level: int) -> bool:
+  ...
+
+
+def flush() -> None:
+  ...
+
+
+def level_debug() -> bool:
+  ...
+
+
+def level_info() -> bool:
+  ...
+
+
+def level_warning() -> bool:
+  ...
+
+
+level_warn = level_warning  # Deprecated function.
+
+
+def level_error() -> bool:
+  ...
+
+
+def get_log_file_name(level: int = ...) -> str:
+  ...
+
+
+def find_log_dir_and_names(
+    program_name: Optional[str] = ..., log_dir: Optional[str] = ...
+) -> Tuple[str, str, str]:
+  ...
+
+
+def find_log_dir(log_dir: Optional[str] = ...) -> str:
+  ...
+
+
+def get_absl_log_prefix(record: logging.LogRecord) -> str:
+  ...
+
+
+_SkipLogT = TypeVar('_SkipLogT', str, Callable[..., Any])
+
+def skip_log_prefix(func: _SkipLogT) -> _SkipLogT:
+  ...
+
+
+_StreamT = TypeVar("_StreamT")
+
+
+class PythonHandler(logging.StreamHandler[_StreamT]):
+
+  def __init__(
+      self,
+      stream: Optional[_StreamT] = ...,
+      formatter: Optional[logging.Formatter] = ...,
+  ) -> None:
+    ...
+
+  def start_logging_to_file(
+      self, program_name: Optional[str] = ..., log_dir: Optional[str] = ...
+  ) -> None:
+    ...
+
+  def use_absl_log_file(
+      self, program_name: Optional[str] = ..., log_dir: Optional[str] = ...
+  ) -> None:
+    ...
+
+  def flush(self) -> None:
+    ...
+
+  def emit(self, record: logging.LogRecord) -> None:
+    ...
+
+  def close(self) -> None:
+    ...
+
+
+class ABSLHandler(logging.Handler):
+
+  def __init__(self, python_logging_formatter: PythonFormatter) -> None:
+    ...
+
+  def format(self, record: logging.LogRecord) -> str:
+    ...
+
+  def setFormatter(self, fmt) -> None:
+    ...
+
+  def emit(self, record: logging.LogRecord) -> None:
+    ...
+
+  def flush(self) -> None:
+    ...
+
+  def close(self) -> None:
+    ...
+
+  def handle(self, record: logging.LogRecord) -> bool:
+    ...
+
+  @property
+  def python_handler(self) -> PythonHandler:
+    ...
+
+  def activate_python_handler(self) -> None:
+    ...
+
+  def use_absl_log_file(
+      self, program_name: Optional[str] = ..., log_dir: Optional[str] = ...
+  ) -> None:
+    ...
+
+  def start_logging_to_file(self, program_name=None, log_dir=None) -> None:
+    ...
+
+
+class PythonFormatter(logging.Formatter):
+
+  def format(self, record: logging.LogRecord) -> str:
+    ...
+
+
+class ABSLLogger(logging.Logger):
+
+  def findCaller(
+      self, stack_info: bool = ..., stacklevel: int = ...
+  ) -> Tuple[str, int, str, Optional[str]]:
+    ...
+
+  def critical(self, msg: Any, *args: Any, **kwargs: Any) -> None:
+    ...
+
+  def fatal(self, msg: Any, *args: Any, **kwargs: Any) -> NoReturn:
+    ...
+
+  def error(self, msg: Any, *args: Any, **kwargs: Any) -> None:
+    ...
+
+  def warn(self, msg: Any, *args: Any, **kwargs: Any) -> None:
+    ...
+
+  def warning(self, msg: Any, *args: Any, **kwargs: Any) -> None:
+    ...
+
+  def info(self, msg: Any, *args: Any, **kwargs: Any) -> None:
+    ...
+
+  def debug(self, msg: Any, *args: Any, **kwargs: Any) -> None:
+    ...
+
+  def log(self, level: int, msg: Any, *args: Any, **kwargs: Any) -> None:
+    ...
+
+  def handle(self, record: logging.LogRecord) -> None:
+    ...
+
+  @classmethod
+  def register_frame_to_skip(
+      cls, file_name: str, function_name: str, line_number: Optional[int] = ...
+  ) -> None:
+    ...
+
+
+# NOTE: Returns None before _initialize called but shouldn't occur after import.
+def get_absl_logger() -> ABSLLogger:
+  ...
+
+
+# NOTE: Returns None before _initialize called but shouldn't occur after import.
+def get_absl_handler() -> ABSLHandler:
+  ...
+
+
+def use_python_logging(quiet: bool = ...) -> None:
+  ...
+
+
+def use_absl_handler() -> None:
+  ...

rl/Lib/site-packages/absl/logging/converter.py

@@ -0,0 +1,214 @@
+# Copyright 2017 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Module to convert log levels between Abseil Python, C++, and Python standard.
+
+This converter has to convert (best effort) between three different
+logging level schemes:
+
+  * **cpp**: The C++ logging level scheme used in Abseil C++.
+  * **absl**: The absl.logging level scheme used in Abseil Python.
+  * **standard**: The python standard library logging level scheme.
+
+Here is a handy ascii chart for easy mental mapping::
+
+    LEVEL    | cpp |  absl  | standard |
+    ---------+-----+--------+----------+
+    DEBUG    |  0  |    1   |    10    |
+    INFO     |  0  |    0   |    20    |
+    WARNING  |  1  |   -1   |    30    |
+    ERROR    |  2  |   -2   |    40    |
+    CRITICAL |  3  |   -3   |    50    |
+    FATAL    |  3  |   -3   |    50    |
+
+Note: standard logging ``CRITICAL`` is mapped to absl/cpp ``FATAL``.
+However, only ``CRITICAL`` logs from the absl logger (or absl.logging.fatal)
+will terminate the program. ``CRITICAL`` logs from non-absl loggers are treated
+as error logs with a message prefix ``"CRITICAL - "``.
+
+Converting from standard to absl or cpp is a lossy conversion.
+Converting back to standard will lose granularity.  For this reason,
+users should always try to convert to standard, the richest
+representation, before manipulating the levels, and then only to cpp
+or absl if those level schemes are absolutely necessary.
+"""
+
+import logging
+
+STANDARD_CRITICAL = logging.CRITICAL
+STANDARD_ERROR = logging.ERROR
+STANDARD_WARNING = logging.WARNING
+STANDARD_INFO = logging.INFO
+STANDARD_DEBUG = logging.DEBUG
+
+# These levels are also used to define the constants
+# FATAL, ERROR, WARNING, INFO, and DEBUG in the
+# absl.logging module.
+ABSL_FATAL = -3
+ABSL_ERROR = -2
+ABSL_WARNING = -1
+ABSL_WARN = -1  # Deprecated name.
+ABSL_INFO = 0
+ABSL_DEBUG = 1
+
+ABSL_LEVELS = {ABSL_FATAL: 'FATAL',
+               ABSL_ERROR: 'ERROR',
+               ABSL_WARNING: 'WARNING',
+               ABSL_INFO: 'INFO',
+               ABSL_DEBUG: 'DEBUG'}
+
+# Inverts the ABSL_LEVELS dictionary
+ABSL_NAMES = {'FATAL': ABSL_FATAL,
+              'ERROR': ABSL_ERROR,
+              'WARNING': ABSL_WARNING,
+              'WARN': ABSL_WARNING,  # Deprecated name.
+              'INFO': ABSL_INFO,
+              'DEBUG': ABSL_DEBUG}
+
+ABSL_TO_STANDARD = {ABSL_FATAL: STANDARD_CRITICAL,
+                    ABSL_ERROR: STANDARD_ERROR,
+                    ABSL_WARNING: STANDARD_WARNING,
+                    ABSL_INFO: STANDARD_INFO,
+                    ABSL_DEBUG: STANDARD_DEBUG}
+
+# Inverts the ABSL_TO_STANDARD
+STANDARD_TO_ABSL = dict((v, k) for (k, v) in ABSL_TO_STANDARD.items())
+
+
+def get_initial_for_level(level):
+  """Gets the initial that should start the log line for the given level.
+
+  It returns:
+
+  * ``'I'`` when: ``level < STANDARD_WARNING``.
+  * ``'W'`` when: ``STANDARD_WARNING <= level < STANDARD_ERROR``.
+  * ``'E'`` when: ``STANDARD_ERROR <= level < STANDARD_CRITICAL``.
+  * ``'F'`` when: ``level >= STANDARD_CRITICAL``.
+
+  Args:
+    level: int, a Python standard logging level.
+
+  Returns:
+    The first initial as it would be logged by the C++ logging module.
+  """
+  if level < STANDARD_WARNING:
+    return 'I'
+  elif level < STANDARD_ERROR:
+    return 'W'
+  elif level < STANDARD_CRITICAL:
+    return 'E'
+  else:
+    return 'F'
+
+
+def absl_to_cpp(level):
+  """Converts an absl log level to a cpp log level.
+
+  Args:
+    level: int, an absl.logging level.
+
+  Raises:
+    TypeError: Raised when level is not an integer.
+
+  Returns:
+    The corresponding integer level for use in Abseil C++.
+  """
+  if not isinstance(level, int):
+    raise TypeError('Expect an int level, found {}'.format(type(level)))
+  if level >= 0:
+    # C++ log levels must be >= 0
+    return 0
+  else:
+    return -level
+
+
+def absl_to_standard(level):
+  """Converts an integer level from the absl value to the standard value.
+
+  Args:
+    level: int, an absl.logging level.
+
+  Raises:
+    TypeError: Raised when level is not an integer.
+
+  Returns:
+    The corresponding integer level for use in standard logging.
+  """
+  if not isinstance(level, int):
+    raise TypeError('Expect an int level, found {}'.format(type(level)))
+  if level < ABSL_FATAL:
+    level = ABSL_FATAL
+  if level <= ABSL_DEBUG:
+    return ABSL_TO_STANDARD[level]
+  # Maps to vlog levels.
+  return STANDARD_DEBUG - level + 1
+
+
+def string_to_standard(level):
+  """Converts a string level to standard logging level value.
+
+  Args:
+    level: str, case-insensitive ``'debug'``, ``'info'``, ``'warning'``,
+        ``'error'``, ``'fatal'``.
+
+  Returns:
+    The corresponding integer level for use in standard logging.
+  """
+  return absl_to_standard(ABSL_NAMES.get(level.upper()))
+
+
+def standard_to_absl(level):
+  """Converts an integer level from the standard value to the absl value.
+
+  Args:
+    level: int, a Python standard logging level.
+
+  Raises:
+    TypeError: Raised when level is not an integer.
+
+  Returns:
+    The corresponding integer level for use in absl logging.
+  """
+  if not isinstance(level, int):
+    raise TypeError('Expect an int level, found {}'.format(type(level)))
+  if level < 0:
+    level = 0
+  if level < STANDARD_DEBUG:
+    # Maps to vlog levels.
+    return STANDARD_DEBUG - level + 1
+  elif level < STANDARD_INFO:
+    return ABSL_DEBUG
+  elif level < STANDARD_WARNING:
+    return ABSL_INFO
+  elif level < STANDARD_ERROR:
+    return ABSL_WARNING
+  elif level < STANDARD_CRITICAL:
+    return ABSL_ERROR
+  else:
+    return ABSL_FATAL
+
+
+def standard_to_cpp(level):
+  """Converts an integer level from the standard value to the cpp value.
+
+  Args:
+    level: int, a Python standard logging level.
+
+  Raises:
+    TypeError: Raised when level is not an integer.
+
+  Returns:
+    The corresponding integer level for use in cpp logging.
+  """
+  return absl_to_cpp(standard_to_absl(level))