Varia's website
https://varia.zone
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
798 lines
31 KiB
798 lines
31 KiB
5 days ago
|
import inspect
|
||
|
|
import linecache
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
from dataclasses import dataclass, field
|
||
|
|
from itertools import islice
|
||
|
|
from traceback import walk_tb
|
||
|
|
from types import ModuleType, TracebackType
|
||
|
|
from typing import (
|
||
|
|
Any,
|
||
|
|
Callable,
|
||
|
|
Dict,
|
||
|
|
Iterable,
|
||
|
|
List,
|
||
|
|
Optional,
|
||
|
|
Sequence,
|
||
|
|
Tuple,
|
||
|
|
Type,
|
||
|
|
Union,
|
||
|
|
)
|
||
|
|
|
||
|
|
from pygments.lexers import guess_lexer_for_filename
|
||
|
|
from pygments.token import Comment, Keyword, Name, Number, Operator, String
|
||
|
|
from pygments.token import Text as TextToken
|
||
|
|
from pygments.token import Token
|
||
|
|
from pygments.util import ClassNotFound
|
||
|
|
|
||
|
|
from . import pretty
|
||
|
|
from ._loop import loop_last
|
||
|
|
from .columns import Columns
|
||
|
|
from .console import Console, ConsoleOptions, ConsoleRenderable, RenderResult, group
|
||
|
|
from .constrain import Constrain
|
||
|
|
from .highlighter import RegexHighlighter, ReprHighlighter
|
||
|
|
from .panel import Panel
|
||
|
|
from .scope import render_scope
|
||
|
|
from .style import Style
|
||
|
|
from .syntax import Syntax
|
||
|
|
from .text import Text
|
||
|
|
from .theme import Theme
|
||
|
|
|
||
|
|
WINDOWS = sys.platform == "win32"
|
||
|
|
|
||
|
|
LOCALS_MAX_LENGTH = 10
|
||
|
|
LOCALS_MAX_STRING = 80
|
||
|
|
|
||
|
|
|
||
|
|
def install(
|
||
|
|
*,
|
||
|
|
console: Optional[Console] = None,
|
||
|
|
width: Optional[int] = 100,
|
||
|
|
code_width: Optional[int] = 88,
|
||
|
|
extra_lines: int = 3,
|
||
|
|
theme: Optional[str] = None,
|
||
|
|
word_wrap: bool = False,
|
||
|
|
show_locals: bool = False,
|
||
|
|
locals_max_length: int = LOCALS_MAX_LENGTH,
|
||
|
|
locals_max_string: int = LOCALS_MAX_STRING,
|
||
|
|
locals_hide_dunder: bool = True,
|
||
|
|
locals_hide_sunder: Optional[bool] = None,
|
||
|
|
indent_guides: bool = True,
|
||
|
|
suppress: Iterable[Union[str, ModuleType]] = (),
|
||
|
|
max_frames: int = 100,
|
||
|
|
) -> Callable[[Type[BaseException], BaseException, Optional[TracebackType]], Any]:
|
||
|
|
"""Install a rich traceback handler.
|
||
|
|
|
||
|
|
Once installed, any tracebacks will be printed with syntax highlighting and rich formatting.
|
||
|
|
|
||
|
|
|
||
|
|
Args:
|
||
|
|
console (Optional[Console], optional): Console to write exception to. Default uses internal Console instance.
|
||
|
|
width (Optional[int], optional): Width (in characters) of traceback. Defaults to 100.
|
||
|
|
code_width (Optional[int], optional): Code width (in characters) of traceback. Defaults to 88.
|
||
|
|
extra_lines (int, optional): Extra lines of code. Defaults to 3.
|
||
|
|
theme (Optional[str], optional): Pygments theme to use in traceback. Defaults to ``None`` which will pick
|
||
|
|
a theme appropriate for the platform.
|
||
|
|
word_wrap (bool, optional): Enable word wrapping of long lines. Defaults to False.
|
||
|
|
show_locals (bool, optional): Enable display of local variables. Defaults to False.
|
||
|
|
locals_max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
|
||
|
|
Defaults to 10.
|
||
|
|
locals_max_string (int, optional): Maximum length of string before truncating, or None to disable. Defaults to 80.
|
||
|
|
locals_hide_dunder (bool, optional): Hide locals prefixed with double underscore. Defaults to True.
|
||
|
|
locals_hide_sunder (bool, optional): Hide locals prefixed with single underscore. Defaults to False.
|
||
|
|
indent_guides (bool, optional): Enable indent guides in code and locals. Defaults to True.
|
||
|
|
suppress (Sequence[Union[str, ModuleType]]): Optional sequence of modules or paths to exclude from traceback.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Callable: The previous exception handler that was replaced.
|
||
|
|
|
||
|
|
"""
|
||
|
|
traceback_console = Console(stderr=True) if console is None else console
|
||
|
|
|
||
|
|
locals_hide_sunder = (
|
||
|
|
True
|
||
|
|
if (traceback_console.is_jupyter and locals_hide_sunder is None)
|
||
|
|
else locals_hide_sunder
|
||
|
|
)
|
||
|
|
|
||
|
|
def excepthook(
|
||
|
|
type_: Type[BaseException],
|
||
|
|
value: BaseException,
|
||
|
|
traceback: Optional[TracebackType],
|
||
|
|
) -> None:
|
||
|
|
traceback_console.print(
|
||
|
|
Traceback.from_exception(
|
||
|
|
type_,
|
||
|
|
value,
|
||
|
|
traceback,
|
||
|
|
width=width,
|
||
|
|
code_width=code_width,
|
||
|
|
extra_lines=extra_lines,
|
||
|
|
theme=theme,
|
||
|
|
word_wrap=word_wrap,
|
||
|
|
show_locals=show_locals,
|
||
|
|
locals_max_length=locals_max_length,
|
||
|
|
locals_max_string=locals_max_string,
|
||
|
|
locals_hide_dunder=locals_hide_dunder,
|
||
|
|
locals_hide_sunder=bool(locals_hide_sunder),
|
||
|
|
indent_guides=indent_guides,
|
||
|
|
suppress=suppress,
|
||
|
|
max_frames=max_frames,
|
||
|
|
)
|
||
|
|
)
|
||
|
|
|
||
|
|
def ipy_excepthook_closure(ip: Any) -> None: # pragma: no cover
|
||
|
|
tb_data = {} # store information about showtraceback call
|
||
|
|
default_showtraceback = ip.showtraceback # keep reference of default traceback
|
||
|
|
|
||
|
|
def ipy_show_traceback(*args: Any, **kwargs: Any) -> None:
|
||
|
|
"""wrap the default ip.showtraceback to store info for ip._showtraceback"""
|
||
|
|
nonlocal tb_data
|
||
|
|
tb_data = kwargs
|
||
|
|
default_showtraceback(*args, **kwargs)
|
||
|
|
|
||
|
|
def ipy_display_traceback(
|
||
|
|
*args: Any, is_syntax: bool = False, **kwargs: Any
|
||
|
|
) -> None:
|
||
|
|
"""Internally called traceback from ip._showtraceback"""
|
||
|
|
nonlocal tb_data
|
||
|
|
exc_tuple = ip._get_exc_info()
|
||
|
|
|
||
|
|
# do not display trace on syntax error
|
||
|
|
tb: Optional[TracebackType] = None if is_syntax else exc_tuple[2]
|
||
|
|
|
||
|
|
# determine correct tb_offset
|
||
|
|
compiled = tb_data.get("running_compiled_code", False)
|
||
|
|
tb_offset = tb_data.get("tb_offset", 1 if compiled else 0)
|
||
|
|
# remove ipython internal frames from trace with tb_offset
|
||
|
|
for _ in range(tb_offset):
|
||
|
|
if tb is None:
|
||
|
|
break
|
||
|
|
tb = tb.tb_next
|
||
|
|
|
||
|
|
excepthook(exc_tuple[0], exc_tuple[1], tb)
|
||
|
|
tb_data = {} # clear data upon usage
|
||
|
|
|
||
|
|
# replace _showtraceback instead of showtraceback to allow ipython features such as debugging to work
|
||
|
|
# this is also what the ipython docs recommends to modify when subclassing InteractiveShell
|
||
|
|
ip._showtraceback = ipy_display_traceback
|
||
|
|
# add wrapper to capture tb_data
|
||
|
|
ip.showtraceback = ipy_show_traceback
|
||
|
|
ip.showsyntaxerror = lambda *args, **kwargs: ipy_display_traceback(
|
||
|
|
*args, is_syntax=True, **kwargs
|
||
|
|
)
|
||
|
|
|
||
|
|
try: # pragma: no cover
|
||
|
|
# if within ipython, use customized traceback
|
||
|
|
ip = get_ipython() # type: ignore[name-defined]
|
||
|
|
ipy_excepthook_closure(ip)
|
||
|
|
return sys.excepthook
|
||
|
|
except Exception:
|
||
|
|
# otherwise use default system hook
|
||
|
|
old_excepthook = sys.excepthook
|
||
|
|
sys.excepthook = excepthook
|
||
|
|
return old_excepthook
|
||
|
|
|
||
|
|
|
||
|
|
@dataclass
|
||
|
|
class Frame:
|
||
|
|
filename: str
|
||
|
|
lineno: int
|
||
|
|
name: str
|
||
|
|
line: str = ""
|
||
|
|
locals: Optional[Dict[str, pretty.Node]] = None
|
||
|
|
last_instruction: Optional[Tuple[Tuple[int, int], Tuple[int, int]]] = None
|
||
|
|
|
||
|
|
|
||
|
|
@dataclass
|
||
|
|
class _SyntaxError:
|
||
|
|
offset: int
|
||
|
|
filename: str
|
||
|
|
line: str
|
||
|
|
lineno: int
|
||
|
|
msg: str
|
||
|
|
|
||
|
|
|
||
|
|
@dataclass
|
||
|
|
class Stack:
|
||
|
|
exc_type: str
|
||
|
|
exc_value: str
|
||
|
|
syntax_error: Optional[_SyntaxError] = None
|
||
|
|
is_cause: bool = False
|
||
|
|
frames: List[Frame] = field(default_factory=list)
|
||
|
|
|
||
|
|
|
||
|
|
@dataclass
|
||
|
|
class Trace:
|
||
|
|
stacks: List[Stack]
|
||
|
|
|
||
|
|
|
||
|
|
class PathHighlighter(RegexHighlighter):
|
||
|
|
highlights = [r"(?P<dim>.*/)(?P<bold>.+)"]
|
||
|
|
|
||
|
|
|
||
|
|
class Traceback:
|
||
|
|
"""A Console renderable that renders a traceback.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
trace (Trace, optional): A `Trace` object produced from `extract`. Defaults to None, which uses
|
||
|
|
the last exception.
|
||
|
|
width (Optional[int], optional): Number of characters used to traceback. Defaults to 100.
|
||
|
|
code_width (Optional[int], optional): Number of code characters used to traceback. Defaults to 88.
|
||
|
|
extra_lines (int, optional): Additional lines of code to render. Defaults to 3.
|
||
|
|
theme (str, optional): Override pygments theme used in traceback.
|
||
|
|
word_wrap (bool, optional): Enable word wrapping of long lines. Defaults to False.
|
||
|
|
show_locals (bool, optional): Enable display of local variables. Defaults to False.
|
||
|
|
indent_guides (bool, optional): Enable indent guides in code and locals. Defaults to True.
|
||
|
|
locals_max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
|
||
|
|
Defaults to 10.
|
||
|
|
locals_max_string (int, optional): Maximum length of string before truncating, or None to disable. Defaults to 80.
|
||
|
|
locals_hide_dunder (bool, optional): Hide locals prefixed with double underscore. Defaults to True.
|
||
|
|
locals_hide_sunder (bool, optional): Hide locals prefixed with single underscore. Defaults to False.
|
||
|
|
suppress (Sequence[Union[str, ModuleType]]): Optional sequence of modules or paths to exclude from traceback.
|
||
|
|
max_frames (int): Maximum number of frames to show in a traceback, 0 for no maximum. Defaults to 100.
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
LEXERS = {
|
||
|
|
"": "text",
|
||
|
|
".py": "python",
|
||
|
|
".pxd": "cython",
|
||
|
|
".pyx": "cython",
|
||
|
|
".pxi": "pyrex",
|
||
|
|
}
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
trace: Optional[Trace] = None,
|
||
|
|
*,
|
||
|
|
width: Optional[int] = 100,
|
||
|
|
code_width: Optional[int] = 88,
|
||
|
|
extra_lines: int = 3,
|
||
|
|
theme: Optional[str] = None,
|
||
|
|
word_wrap: bool = False,
|
||
|
|
show_locals: bool = False,
|
||
|
|
locals_max_length: int = LOCALS_MAX_LENGTH,
|
||
|
|
locals_max_string: int = LOCALS_MAX_STRING,
|
||
|
|
locals_hide_dunder: bool = True,
|
||
|
|
locals_hide_sunder: bool = False,
|
||
|
|
indent_guides: bool = True,
|
||
|
|
suppress: Iterable[Union[str, ModuleType]] = (),
|
||
|
|
max_frames: int = 100,
|
||
|
|
):
|
||
|
|
if trace is None:
|
||
|
|
exc_type, exc_value, traceback = sys.exc_info()
|
||
|
|
if exc_type is None or exc_value is None or traceback is None:
|
||
|
|
raise ValueError(
|
||
|
|
"Value for 'trace' required if not called in except: block"
|
||
|
|
)
|
||
|
|
trace = self.extract(
|
||
|
|
exc_type, exc_value, traceback, show_locals=show_locals
|
||
|
|
)
|
||
|
|
self.trace = trace
|
||
|
|
self.width = width
|
||
|
|
self.code_width = code_width
|
||
|
|
self.extra_lines = extra_lines
|
||
|
|
self.theme = Syntax.get_theme(theme or "ansi_dark")
|
||
|
|
self.word_wrap = word_wrap
|
||
|
|
self.show_locals = show_locals
|
||
|
|
self.indent_guides = indent_guides
|
||
|
|
self.locals_max_length = locals_max_length
|
||
|
|
self.locals_max_string = locals_max_string
|
||
|
|
self.locals_hide_dunder = locals_hide_dunder
|
||
|
|
self.locals_hide_sunder = locals_hide_sunder
|
||
|
|
|
||
|
|
self.suppress: Sequence[str] = []
|
||
|
|
for suppress_entity in suppress:
|
||
|
|
if not isinstance(suppress_entity, str):
|
||
|
|
assert (
|
||
|
|
suppress_entity.__file__ is not None
|
||
|
|
), f"{suppress_entity!r} must be a module with '__file__' attribute"
|
||
|
|
path = os.path.dirname(suppress_entity.__file__)
|
||
|
|
else:
|
||
|
|
path = suppress_entity
|
||
|
|
path = os.path.normpath(os.path.abspath(path))
|
||
|
|
self.suppress.append(path)
|
||
|
|
self.max_frames = max(4, max_frames) if max_frames > 0 else 0
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def from_exception(
|
||
|
|
cls,
|
||
|
|
exc_type: Type[Any],
|
||
|
|
exc_value: BaseException,
|
||
|
|
traceback: Optional[TracebackType],
|
||
|
|
*,
|
||
|
|
width: Optional[int] = 100,
|
||
|
|
code_width: Optional[int] = 88,
|
||
|
|
extra_lines: int = 3,
|
||
|
|
theme: Optional[str] = None,
|
||
|
|
word_wrap: bool = False,
|
||
|
|
show_locals: bool = False,
|
||
|
|
locals_max_length: int = LOCALS_MAX_LENGTH,
|
||
|
|
locals_max_string: int = LOCALS_MAX_STRING,
|
||
|
|
locals_hide_dunder: bool = True,
|
||
|
|
locals_hide_sunder: bool = False,
|
||
|
|
indent_guides: bool = True,
|
||
|
|
suppress: Iterable[Union[str, ModuleType]] = (),
|
||
|
|
max_frames: int = 100,
|
||
|
|
) -> "Traceback":
|
||
|
|
"""Create a traceback from exception info
|
||
|
|
|
||
|
|
Args:
|
||
|
|
exc_type (Type[BaseException]): Exception type.
|
||
|
|
exc_value (BaseException): Exception value.
|
||
|
|
traceback (TracebackType): Python Traceback object.
|
||
|
|
width (Optional[int], optional): Number of characters used to traceback. Defaults to 100.
|
||
|
|
code_width (Optional[int], optional): Number of code characters used to traceback. Defaults to 88.
|
||
|
|
extra_lines (int, optional): Additional lines of code to render. Defaults to 3.
|
||
|
|
theme (str, optional): Override pygments theme used in traceback.
|
||
|
|
word_wrap (bool, optional): Enable word wrapping of long lines. Defaults to False.
|
||
|
|
show_locals (bool, optional): Enable display of local variables. Defaults to False.
|
||
|
|
indent_guides (bool, optional): Enable indent guides in code and locals. Defaults to True.
|
||
|
|
locals_max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
|
||
|
|
Defaults to 10.
|
||
|
|
locals_max_string (int, optional): Maximum length of string before truncating, or None to disable. Defaults to 80.
|
||
|
|
locals_hide_dunder (bool, optional): Hide locals prefixed with double underscore. Defaults to True.
|
||
|
|
locals_hide_sunder (bool, optional): Hide locals prefixed with single underscore. Defaults to False.
|
||
|
|
suppress (Iterable[Union[str, ModuleType]]): Optional sequence of modules or paths to exclude from traceback.
|
||
|
|
max_frames (int): Maximum number of frames to show in a traceback, 0 for no maximum. Defaults to 100.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Traceback: A Traceback instance that may be printed.
|
||
|
|
"""
|
||
|
|
rich_traceback = cls.extract(
|
||
|
|
exc_type,
|
||
|
|
exc_value,
|
||
|
|
traceback,
|
||
|
|
show_locals=show_locals,
|
||
|
|
locals_max_length=locals_max_length,
|
||
|
|
locals_max_string=locals_max_string,
|
||
|
|
locals_hide_dunder=locals_hide_dunder,
|
||
|
|
locals_hide_sunder=locals_hide_sunder,
|
||
|
|
)
|
||
|
|
|
||
|
|
return cls(
|
||
|
|
rich_traceback,
|
||
|
|
width=width,
|
||
|
|
code_width=code_width,
|
||
|
|
extra_lines=extra_lines,
|
||
|
|
theme=theme,
|
||
|
|
word_wrap=word_wrap,
|
||
|
|
show_locals=show_locals,
|
||
|
|
indent_guides=indent_guides,
|
||
|
|
locals_max_length=locals_max_length,
|
||
|
|
locals_max_string=locals_max_string,
|
||
|
|
locals_hide_dunder=locals_hide_dunder,
|
||
|
|
locals_hide_sunder=locals_hide_sunder,
|
||
|
|
suppress=suppress,
|
||
|
|
max_frames=max_frames,
|
||
|
|
)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def extract(
|
||
|
|
cls,
|
||
|
|
exc_type: Type[BaseException],
|
||
|
|
exc_value: BaseException,
|
||
|
|
traceback: Optional[TracebackType],
|
||
|
|
*,
|
||
|
|
show_locals: bool = False,
|
||
|
|
locals_max_length: int = LOCALS_MAX_LENGTH,
|
||
|
|
locals_max_string: int = LOCALS_MAX_STRING,
|
||
|
|
locals_hide_dunder: bool = True,
|
||
|
|
locals_hide_sunder: bool = False,
|
||
|
|
) -> Trace:
|
||
|
|
"""Extract traceback information.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
exc_type (Type[BaseException]): Exception type.
|
||
|
|
exc_value (BaseException): Exception value.
|
||
|
|
traceback (TracebackType): Python Traceback object.
|
||
|
|
show_locals (bool, optional): Enable display of local variables. Defaults to False.
|
||
|
|
locals_max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
|
||
|
|
Defaults to 10.
|
||
|
|
locals_max_string (int, optional): Maximum length of string before truncating, or None to disable. Defaults to 80.
|
||
|
|
locals_hide_dunder (bool, optional): Hide locals prefixed with double underscore. Defaults to True.
|
||
|
|
locals_hide_sunder (bool, optional): Hide locals prefixed with single underscore. Defaults to False.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Trace: A Trace instance which you can use to construct a `Traceback`.
|
||
|
|
"""
|
||
|
|
|
||
|
|
stacks: List[Stack] = []
|
||
|
|
is_cause = False
|
||
|
|
|
||
|
|
from rich import _IMPORT_CWD
|
||
|
|
|
||
|
|
def safe_str(_object: Any) -> str:
|
||
|
|
"""Don't allow exceptions from __str__ to propagate."""
|
||
|
|
try:
|
||
|
|
return str(_object)
|
||
|
|
except Exception:
|
||
|
|
return "<exception str() failed>"
|
||
|
|
|
||
|
|
while True:
|
||
|
|
stack = Stack(
|
||
|
|
exc_type=safe_str(exc_type.__name__),
|
||
|
|
exc_value=safe_str(exc_value),
|
||
|
|
is_cause=is_cause,
|
||
|
|
)
|
||
|
|
|
||
|
|
if isinstance(exc_value, SyntaxError):
|
||
|
|
stack.syntax_error = _SyntaxError(
|
||
|
|
offset=exc_value.offset or 0,
|
||
|
|
filename=exc_value.filename or "?",
|
||
|
|
lineno=exc_value.lineno or 0,
|
||
|
|
line=exc_value.text or "",
|
||
|
|
msg=exc_value.msg,
|
||
|
|
)
|
||
|
|
|
||
|
|
stacks.append(stack)
|
||
|
|
append = stack.frames.append
|
||
|
|
|
||
|
|
def get_locals(
|
||
|
|
iter_locals: Iterable[Tuple[str, object]]
|
||
|
|
) -> Iterable[Tuple[str, object]]:
|
||
|
|
"""Extract locals from an iterator of key pairs."""
|
||
|
|
if not (locals_hide_dunder or locals_hide_sunder):
|
||
|
|
yield from iter_locals
|
||
|
|
return
|
||
|
|
for key, value in iter_locals:
|
||
|
|
if locals_hide_dunder and key.startswith("__"):
|
||
|
|
continue
|
||
|
|
if locals_hide_sunder and key.startswith("_"):
|
||
|
|
continue
|
||
|
|
yield key, value
|
||
|
|
|
||
|
|
for frame_summary, line_no in walk_tb(traceback):
|
||
|
|
filename = frame_summary.f_code.co_filename
|
||
|
|
|
||
|
|
last_instruction: Optional[Tuple[Tuple[int, int], Tuple[int, int]]]
|
||
|
|
last_instruction = None
|
||
|
|
if sys.version_info >= (3, 11):
|
||
|
|
instruction_index = frame_summary.f_lasti // 2
|
||
|
|
instruction_position = next(
|
||
|
|
islice(
|
||
|
|
frame_summary.f_code.co_positions(),
|
||
|
|
instruction_index,
|
||
|
|
instruction_index + 1,
|
||
|
|
)
|
||
|
|
)
|
||
|
|
(
|
||
|
|
start_line,
|
||
|
|
end_line,
|
||
|
|
start_column,
|
||
|
|
end_column,
|
||
|
|
) = instruction_position
|
||
|
|
if (
|
||
|
|
start_line is not None
|
||
|
|
and end_line is not None
|
||
|
|
and start_column is not None
|
||
|
|
and end_column is not None
|
||
|
|
):
|
||
|
|
last_instruction = (
|
||
|
|
(start_line, start_column),
|
||
|
|
(end_line, end_column),
|
||
|
|
)
|
||
|
|
|
||
|
|
if filename and not filename.startswith("<"):
|
||
|
|
if not os.path.isabs(filename):
|
||
|
|
filename = os.path.join(_IMPORT_CWD, filename)
|
||
|
|
if frame_summary.f_locals.get("_rich_traceback_omit", False):
|
||
|
|
continue
|
||
|
|
|
||
|
|
frame = Frame(
|
||
|
|
filename=filename or "?",
|
||
|
|
lineno=line_no,
|
||
|
|
name=frame_summary.f_code.co_name,
|
||
|
|
locals=(
|
||
|
|
{
|
||
|
|
key: pretty.traverse(
|
||
|
|
value,
|
||
|
|
max_length=locals_max_length,
|
||
|
|
max_string=locals_max_string,
|
||
|
|
)
|
||
|
|
for key, value in get_locals(frame_summary.f_locals.items())
|
||
|
|
if not (inspect.isfunction(value) or inspect.isclass(value))
|
||
|
|
}
|
||
|
|
if show_locals
|
||
|
|
else None
|
||
|
|
),
|
||
|
|
last_instruction=last_instruction,
|
||
|
|
)
|
||
|
|
append(frame)
|
||
|
|
if frame_summary.f_locals.get("_rich_traceback_guard", False):
|
||
|
|
del stack.frames[:]
|
||
|
|
|
||
|
|
cause = getattr(exc_value, "__cause__", None)
|
||
|
|
if cause:
|
||
|
|
exc_type = cause.__class__
|
||
|
|
exc_value = cause
|
||
|
|
# __traceback__ can be None, e.g. for exceptions raised by the
|
||
|
|
# 'multiprocessing' module
|
||
|
|
traceback = cause.__traceback__
|
||
|
|
is_cause = True
|
||
|
|
continue
|
||
|
|
|
||
|
|
cause = exc_value.__context__
|
||
|
|
if cause and not getattr(exc_value, "__suppress_context__", False):
|
||
|
|
exc_type = cause.__class__
|
||
|
|
exc_value = cause
|
||
|
|
traceback = cause.__traceback__
|
||
|
|
is_cause = False
|
||
|
|
continue
|
||
|
|
# No cover, code is reached but coverage doesn't recognize it.
|
||
|
|
break # pragma: no cover
|
||
|
|
|
||
|
|
trace = Trace(stacks=stacks)
|
||
|
|
return trace
|
||
|
|
|
||
|
|
def __rich_console__(
|
||
|
|
self, console: Console, options: ConsoleOptions
|
||
|
|
) -> RenderResult:
|
||
|
|
theme = self.theme
|
||
|
|
background_style = theme.get_background_style()
|
||
|
|
token_style = theme.get_style_for_token
|
||
|
|
|
||
|
|
traceback_theme = Theme(
|
||
|
|
{
|
||
|
|
"pretty": token_style(TextToken),
|
||
|
|
"pygments.text": token_style(Token),
|
||
|
|
"pygments.string": token_style(String),
|
||
|
|
"pygments.function": token_style(Name.Function),
|
||
|
|
"pygments.number": token_style(Number),
|
||
|
|
"repr.indent": token_style(Comment) + Style(dim=True),
|
||
|
|
"repr.str": token_style(String),
|
||
|
|
"repr.brace": token_style(TextToken) + Style(bold=True),
|
||
|
|
"repr.number": token_style(Number),
|
||
|
|
"repr.bool_true": token_style(Keyword.Constant),
|
||
|
|
"repr.bool_false": token_style(Keyword.Constant),
|
||
|
|
"repr.none": token_style(Keyword.Constant),
|
||
|
|
"scope.border": token_style(String.Delimiter),
|
||
|
|
"scope.equals": token_style(Operator),
|
||
|
|
"scope.key": token_style(Name),
|
||
|
|
"scope.key.special": token_style(Name.Constant) + Style(dim=True),
|
||
|
|
},
|
||
|
|
inherit=False,
|
||
|
|
)
|
||
|
|
|
||
|
|
highlighter = ReprHighlighter()
|
||
|
|
for last, stack in loop_last(reversed(self.trace.stacks)):
|
||
|
|
if stack.frames:
|
||
|
|
stack_renderable: ConsoleRenderable = Panel(
|
||
|
|
self._render_stack(stack),
|
||
|
|
title="[traceback.title]Traceback [dim](most recent call last)",
|
||
|
|
style=background_style,
|
||
|
|
border_style="traceback.border",
|
||
|
|
expand=True,
|
||
|
|
padding=(0, 1),
|
||
|
|
)
|
||
|
|
stack_renderable = Constrain(stack_renderable, self.width)
|
||
|
|
with console.use_theme(traceback_theme):
|
||
|
|
yield stack_renderable
|
||
|
|
if stack.syntax_error is not None:
|
||
|
|
with console.use_theme(traceback_theme):
|
||
|
|
yield Constrain(
|
||
|
|
Panel(
|
||
|
|
self._render_syntax_error(stack.syntax_error),
|
||
|
|
style=background_style,
|
||
|
|
border_style="traceback.border.syntax_error",
|
||
|
|
expand=True,
|
||
|
|
padding=(0, 1),
|
||
|
|
width=self.width,
|
||
|
|
),
|
||
|
|
self.width,
|
||
|
|
)
|
||
|
|
yield Text.assemble(
|
||
|
|
(f"{stack.exc_type}: ", "traceback.exc_type"),
|
||
|
|
highlighter(stack.syntax_error.msg),
|
||
|
|
)
|
||
|
|
elif stack.exc_value:
|
||
|
|
yield Text.assemble(
|
||
|
|
(f"{stack.exc_type}: ", "traceback.exc_type"),
|
||
|
|
highlighter(stack.exc_value),
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
yield Text.assemble((f"{stack.exc_type}", "traceback.exc_type"))
|
||
|
|
|
||
|
|
if not last:
|
||
|
|
if stack.is_cause:
|
||
|
|
yield Text.from_markup(
|
||
|
|
"\n[i]The above exception was the direct cause of the following exception:\n",
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
yield Text.from_markup(
|
||
|
|
"\n[i]During handling of the above exception, another exception occurred:\n",
|
||
|
|
)
|
||
|
|
|
||
|
|
@group()
|
||
|
|
def _render_syntax_error(self, syntax_error: _SyntaxError) -> RenderResult:
|
||
|
|
highlighter = ReprHighlighter()
|
||
|
|
path_highlighter = PathHighlighter()
|
||
|
|
if syntax_error.filename != "<stdin>":
|
||
|
|
if os.path.exists(syntax_error.filename):
|
||
|
|
text = Text.assemble(
|
||
|
|
(f" {syntax_error.filename}", "pygments.string"),
|
||
|
|
(":", "pygments.text"),
|
||
|
|
(str(syntax_error.lineno), "pygments.number"),
|
||
|
|
style="pygments.text",
|
||
|
|
)
|
||
|
|
yield path_highlighter(text)
|
||
|
|
syntax_error_text = highlighter(syntax_error.line.rstrip())
|
||
|
|
syntax_error_text.no_wrap = True
|
||
|
|
offset = min(syntax_error.offset - 1, len(syntax_error_text))
|
||
|
|
syntax_error_text.stylize("bold underline", offset, offset)
|
||
|
|
syntax_error_text += Text.from_markup(
|
||
|
|
"\n" + " " * offset + "[traceback.offset]▲[/]",
|
||
|
|
style="pygments.text",
|
||
|
|
)
|
||
|
|
yield syntax_error_text
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def _guess_lexer(cls, filename: str, code: str) -> str:
|
||
|
|
ext = os.path.splitext(filename)[-1]
|
||
|
|
if not ext:
|
||
|
|
# No extension, look at first line to see if it is a hashbang
|
||
|
|
# Note, this is an educated guess and not a guarantee
|
||
|
|
# If it fails, the only downside is that the code is highlighted strangely
|
||
|
|
new_line_index = code.index("\n")
|
||
|
|
first_line = code[:new_line_index] if new_line_index != -1 else code
|
||
|
|
if first_line.startswith("#!") and "python" in first_line.lower():
|
||
|
|
return "python"
|
||
|
|
try:
|
||
|
|
return cls.LEXERS.get(ext) or guess_lexer_for_filename(filename, code).name
|
||
|
|
except ClassNotFound:
|
||
|
|
return "text"
|
||
|
|
|
||
|
|
@group()
|
||
|
|
def _render_stack(self, stack: Stack) -> RenderResult:
|
||
|
|
path_highlighter = PathHighlighter()
|
||
|
|
theme = self.theme
|
||
|
|
|
||
|
|
def read_code(filename: str) -> str:
|
||
|
|
"""Read files, and cache results on filename.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
filename (str): Filename to read
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
str: Contents of file
|
||
|
|
"""
|
||
|
|
return "".join(linecache.getlines(filename))
|
||
|
|
|
||
|
|
def render_locals(frame: Frame) -> Iterable[ConsoleRenderable]:
|
||
|
|
if frame.locals:
|
||
|
|
yield render_scope(
|
||
|
|
frame.locals,
|
||
|
|
title="locals",
|
||
|
|
indent_guides=self.indent_guides,
|
||
|
|
max_length=self.locals_max_length,
|
||
|
|
max_string=self.locals_max_string,
|
||
|
|
)
|
||
|
|
|
||
|
|
exclude_frames: Optional[range] = None
|
||
|
|
if self.max_frames != 0:
|
||
|
|
exclude_frames = range(
|
||
|
|
self.max_frames // 2,
|
||
|
|
len(stack.frames) - self.max_frames // 2,
|
||
|
|
)
|
||
|
|
|
||
|
|
excluded = False
|
||
|
|
for frame_index, frame in enumerate(stack.frames):
|
||
|
|
if exclude_frames and frame_index in exclude_frames:
|
||
|
|
excluded = True
|
||
|
|
continue
|
||
|
|
|
||
|
|
if excluded:
|
||
|
|
assert exclude_frames is not None
|
||
|
|
yield Text(
|
||
|
|
f"\n... {len(exclude_frames)} frames hidden ...",
|
||
|
|
justify="center",
|
||
|
|
style="traceback.error",
|
||
|
|
)
|
||
|
|
excluded = False
|
||
|
|
|
||
|
|
first = frame_index == 0
|
||
|
|
frame_filename = frame.filename
|
||
|
|
suppressed = any(frame_filename.startswith(path) for path in self.suppress)
|
||
|
|
|
||
|
|
if os.path.exists(frame.filename):
|
||
|
|
text = Text.assemble(
|
||
|
|
path_highlighter(Text(frame.filename, style="pygments.string")),
|
||
|
|
(":", "pygments.text"),
|
||
|
|
(str(frame.lineno), "pygments.number"),
|
||
|
|
" in ",
|
||
|
|
(frame.name, "pygments.function"),
|
||
|
|
style="pygments.text",
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
text = Text.assemble(
|
||
|
|
"in ",
|
||
|
|
(frame.name, "pygments.function"),
|
||
|
|
(":", "pygments.text"),
|
||
|
|
(str(frame.lineno), "pygments.number"),
|
||
|
|
style="pygments.text",
|
||
|
|
)
|
||
|
|
if not frame.filename.startswith("<") and not first:
|
||
|
|
yield ""
|
||
|
|
yield text
|
||
|
|
if frame.filename.startswith("<"):
|
||
|
|
yield from render_locals(frame)
|
||
|
|
continue
|
||
|
|
if not suppressed:
|
||
|
|
try:
|
||
|
|
code = read_code(frame.filename)
|
||
|
|
if not code:
|
||
|
|
# code may be an empty string if the file doesn't exist, OR
|
||
|
|
# if the traceback filename is generated dynamically
|
||
|
|
continue
|
||
|
|
lexer_name = self._guess_lexer(frame.filename, code)
|
||
|
|
syntax = Syntax(
|
||
|
|
code,
|
||
|
|
lexer_name,
|
||
|
|
theme=theme,
|
||
|
|
line_numbers=True,
|
||
|
|
line_range=(
|
||
|
|
frame.lineno - self.extra_lines,
|
||
|
|
frame.lineno + self.extra_lines,
|
||
|
|
),
|
||
|
|
highlight_lines={frame.lineno},
|
||
|
|
word_wrap=self.word_wrap,
|
||
|
|
code_width=self.code_width,
|
||
|
|
indent_guides=self.indent_guides,
|
||
|
|
dedent=False,
|
||
|
|
)
|
||
|
|
yield ""
|
||
|
|
except Exception as error:
|
||
|
|
yield Text.assemble(
|
||
|
|
(f"\n{error}", "traceback.error"),
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
if frame.last_instruction is not None:
|
||
|
|
start, end = frame.last_instruction
|
||
|
|
syntax.stylize_range(
|
||
|
|
style="traceback.error_range",
|
||
|
|
start=start,
|
||
|
|
end=end,
|
||
|
|
style_before=True,
|
||
|
|
)
|
||
|
|
yield (
|
||
|
|
Columns(
|
||
|
|
[
|
||
|
|
syntax,
|
||
|
|
*render_locals(frame),
|
||
|
|
],
|
||
|
|
padding=1,
|
||
|
|
)
|
||
|
|
if frame.locals
|
||
|
|
else syntax
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__": # pragma: no cover
|
||
|
|
install(show_locals=True)
|
||
|
|
import sys
|
||
|
|
|
||
|
|
def bar(
|
||
|
|
a: Any,
|
||
|
|
) -> None: # 这是对亚洲语言支持的测试。面对模棱两可的想法，拒绝猜测的诱惑
|
||
|
|
one = 1
|
||
|
|
print(one / a)
|
||
|
|
|
||
|
|
def foo(a: Any) -> None:
|
||
|
|
_rich_traceback_guard = True
|
||
|
|
zed = {
|
||
|
|
"characters": {
|
||
|
|
"Paul Atreides",
|
||
|
|
"Vladimir Harkonnen",
|
||
|
|
"Thufir Hawat",
|
||
|
|
"Duncan Idaho",
|
||
|
|
},
|
||
|
|
"atomic_types": (None, False, True),
|
||
|
|
}
|
||
|
|
bar(a)
|
||
|
|
|
||
|
|
def error() -> None:
|
||
|
|
foo(0)
|
||
|
|
|
||
|
|
error()
|