|
1
|
|
|
import re |
|
2
|
|
|
import sys |
|
3
|
|
|
from types import CodeType |
|
4
|
|
|
from types import TracebackType |
|
5
|
|
|
|
|
6
|
|
|
try: |
|
7
|
|
|
from __pypy__ import tproxy |
|
8
|
|
|
except ImportError: |
|
9
|
|
|
tproxy = None |
|
10
|
|
|
try: |
|
11
|
|
|
from .cpython import tb_set_next |
|
12
|
|
|
except ImportError: |
|
13
|
|
|
tb_set_next = None |
|
14
|
|
|
|
|
15
|
|
|
if not tb_set_next and not tproxy: |
|
16
|
|
|
raise ImportError("Cannot use tblib. Runtime not supported.") |
|
17
|
|
|
|
|
18
|
|
|
__version__ = '1.3.0' |
|
19
|
|
|
__all__ = 'Traceback', |
|
20
|
|
|
|
|
21
|
|
|
PY3 = sys.version_info[0] == 3 |
|
22
|
|
|
FRAME_RE = re.compile(r'^\s*File "(?P<co_filename>.+)", line (?P<tb_lineno>\d+)(, in (?P<co_name>.+))?$') |
|
23
|
|
|
|
|
24
|
|
|
|
|
25
|
|
|
class _AttrDict(dict): |
|
26
|
|
|
__slots__ = () |
|
27
|
|
|
__getattr__ = dict.__getitem__ |
|
28
|
|
|
|
|
29
|
|
|
|
|
30
|
|
|
# noinspection PyPep8Naming |
|
31
|
|
|
class __traceback_maker(Exception): |
|
32
|
|
|
pass |
|
33
|
|
|
|
|
34
|
|
|
|
|
35
|
|
|
class TracebackParseError(Exception): |
|
36
|
|
|
pass |
|
37
|
|
|
|
|
38
|
|
|
|
|
39
|
|
|
class Code(object): |
|
40
|
|
|
def __init__(self, code): |
|
41
|
|
|
self.co_filename = code.co_filename |
|
42
|
|
|
self.co_name = code.co_name |
|
43
|
|
|
|
|
44
|
|
|
|
|
45
|
|
|
class Frame(object): |
|
46
|
|
|
def __init__(self, frame): |
|
47
|
|
|
self.f_globals = dict([ |
|
48
|
|
|
(k, v) |
|
49
|
|
|
for k, v in frame.f_globals.items() |
|
50
|
|
|
if k in ("__file__", "__name__") |
|
51
|
|
|
]) |
|
52
|
|
|
self.f_code = Code(frame.f_code) |
|
53
|
|
|
|
|
54
|
|
|
|
|
55
|
|
|
class Traceback(object): |
|
56
|
|
|
|
|
57
|
|
|
tb_next = None |
|
58
|
|
|
|
|
59
|
|
|
def __init__(self, tb): |
|
60
|
|
|
self.tb_frame = Frame(tb.tb_frame) |
|
61
|
|
|
# noinspection SpellCheckingInspection |
|
62
|
|
|
self.tb_lineno = int(tb.tb_lineno) |
|
63
|
|
|
|
|
64
|
|
|
# Build in place to avoid exceeding the recursion limit |
|
65
|
|
|
tb = tb.tb_next |
|
66
|
|
|
prev_traceback = self |
|
67
|
|
|
cls = type(self) |
|
68
|
|
|
while tb is not None: |
|
69
|
|
|
traceback = object.__new__(cls) |
|
70
|
|
|
traceback.tb_frame = Frame(tb.tb_frame) |
|
71
|
|
|
traceback.tb_lineno = int(tb.tb_lineno) |
|
72
|
|
|
prev_traceback.tb_next = traceback |
|
73
|
|
|
prev_traceback = traceback |
|
74
|
|
|
tb = tb.tb_next |
|
75
|
|
|
|
|
76
|
|
|
def as_traceback(self): |
|
77
|
|
|
if tproxy: |
|
78
|
|
|
return tproxy(TracebackType, self.__tproxy_handler) |
|
79
|
|
|
if not tb_set_next: |
|
80
|
|
|
raise RuntimeError("Cannot re-create traceback !") |
|
81
|
|
|
|
|
82
|
|
|
current = self |
|
83
|
|
|
top_tb = None |
|
84
|
|
|
tb = None |
|
85
|
|
|
while current: |
|
86
|
|
|
f_code = current.tb_frame.f_code |
|
87
|
|
|
code = compile('\n' * (current.tb_lineno - 1) + 'raise __traceback_maker', current.tb_frame.f_code.co_filename, 'exec') |
|
88
|
|
|
if PY3: |
|
89
|
|
|
code = CodeType( |
|
90
|
|
|
0, code.co_kwonlyargcount, |
|
91
|
|
|
code.co_nlocals, code.co_stacksize, code.co_flags, |
|
92
|
|
|
code.co_code, code.co_consts, code.co_names, code.co_varnames, |
|
93
|
|
|
f_code.co_filename, f_code.co_name, |
|
94
|
|
|
code.co_firstlineno, code.co_lnotab, (), () |
|
95
|
|
|
) |
|
96
|
|
|
else: |
|
97
|
|
|
code = CodeType( |
|
98
|
|
|
0, |
|
99
|
|
|
code.co_nlocals, code.co_stacksize, code.co_flags, |
|
100
|
|
|
code.co_code, code.co_consts, code.co_names, code.co_varnames, |
|
101
|
|
|
f_code.co_filename.encode(), f_code.co_name.encode(), |
|
102
|
|
|
code.co_firstlineno, code.co_lnotab, (), () |
|
103
|
|
|
) |
|
104
|
|
|
|
|
105
|
|
|
# noinspection PyBroadException |
|
106
|
|
|
try: |
|
107
|
|
|
exec(code, current.tb_frame.f_globals, {}) |
|
108
|
|
|
except: |
|
109
|
|
|
next_tb = sys.exc_info()[2].tb_next |
|
110
|
|
|
if top_tb is None: |
|
111
|
|
|
top_tb = next_tb |
|
112
|
|
|
if tb is not None: |
|
113
|
|
|
tb_set_next(tb, next_tb) |
|
114
|
|
|
tb = next_tb |
|
115
|
|
|
del next_tb |
|
116
|
|
|
|
|
117
|
|
|
current = current.tb_next |
|
118
|
|
|
try: |
|
119
|
|
|
return top_tb |
|
120
|
|
|
finally: |
|
121
|
|
|
del top_tb |
|
122
|
|
|
del tb |
|
123
|
|
|
|
|
124
|
|
|
# noinspection SpellCheckingInspection |
|
125
|
|
|
def __tproxy_handler(self, operation, *args, **kwargs): |
|
126
|
|
|
if operation in ('__getattribute__', '__getattr__'): |
|
127
|
|
|
if args[0] == 'tb_next': |
|
128
|
|
|
return self.tb_next and self.tb_next.as_traceback() |
|
129
|
|
|
else: |
|
130
|
|
|
return getattr(self, args[0]) |
|
131
|
|
|
else: |
|
132
|
|
|
return getattr(self, operation)(*args, **kwargs) |
|
133
|
|
|
|
|
134
|
|
|
def to_dict(self): |
|
135
|
|
|
"""Convert a Traceback into a dictionary representation""" |
|
136
|
|
|
if self.tb_next is None: |
|
137
|
|
|
tb_next = None |
|
138
|
|
|
else: |
|
139
|
|
|
tb_next = self.tb_next.to_dict() |
|
140
|
|
|
|
|
141
|
|
|
code = { |
|
142
|
|
|
'co_filename': self.tb_frame.f_code.co_filename, |
|
143
|
|
|
'co_name': self.tb_frame.f_code.co_name, |
|
144
|
|
|
} |
|
145
|
|
|
frame = { |
|
146
|
|
|
'f_globals': self.tb_frame.f_globals, |
|
147
|
|
|
'f_code': code, |
|
148
|
|
|
} |
|
149
|
|
|
return { |
|
150
|
|
|
'tb_frame': frame, |
|
151
|
|
|
'tb_lineno': self.tb_lineno, |
|
152
|
|
|
'tb_next': tb_next, |
|
153
|
|
|
} |
|
154
|
|
|
|
|
155
|
|
|
@classmethod |
|
156
|
|
|
def from_dict(cls, dct): |
|
157
|
|
|
if dct['tb_next']: |
|
158
|
|
|
tb_next = cls.from_dict(dct['tb_next']) |
|
159
|
|
|
else: |
|
160
|
|
|
tb_next = None |
|
161
|
|
|
|
|
162
|
|
|
code = _AttrDict( |
|
163
|
|
|
co_filename=dct['tb_frame']['f_code']['co_filename'], |
|
164
|
|
|
co_name=dct['tb_frame']['f_code']['co_name'], |
|
165
|
|
|
) |
|
166
|
|
|
frame = _AttrDict( |
|
167
|
|
|
f_globals=dct['tb_frame']['f_globals'], |
|
168
|
|
|
f_code=code, |
|
169
|
|
|
) |
|
170
|
|
|
tb = _AttrDict( |
|
171
|
|
|
tb_frame=frame, |
|
172
|
|
|
tb_lineno=dct['tb_lineno'], |
|
173
|
|
|
tb_next=tb_next, |
|
174
|
|
|
) |
|
175
|
|
|
return cls(tb) |
|
176
|
|
|
|
|
177
|
|
|
@classmethod |
|
178
|
|
|
def from_string(cls, string, strict=True): |
|
179
|
|
|
frames = [] |
|
180
|
|
|
header = strict |
|
181
|
|
|
|
|
182
|
|
|
for line in string.splitlines(): |
|
183
|
|
|
line = line.rstrip() |
|
184
|
|
|
if header: |
|
185
|
|
|
if line == 'Traceback (most recent call last):': |
|
186
|
|
|
header = False |
|
187
|
|
|
continue |
|
188
|
|
|
frame_match = FRAME_RE.match(line) |
|
189
|
|
|
if frame_match: |
|
190
|
|
|
frames.append(frame_match.groupdict()) |
|
191
|
|
|
elif line.startswith(' '): |
|
192
|
|
|
pass |
|
193
|
|
|
elif strict: |
|
194
|
|
|
break # traceback ended |
|
195
|
|
|
|
|
196
|
|
|
if frames: |
|
197
|
|
|
previous = None |
|
198
|
|
|
for frame in reversed(frames): |
|
199
|
|
|
previous = _AttrDict( |
|
200
|
|
|
frame, |
|
201
|
|
|
tb_frame=_AttrDict( |
|
202
|
|
|
frame, |
|
203
|
|
|
f_globals=_AttrDict( |
|
204
|
|
|
__file__=frame['co_filename'], |
|
205
|
|
|
__name__='?', |
|
206
|
|
|
), |
|
207
|
|
|
f_code=_AttrDict(frame), |
|
208
|
|
|
), |
|
209
|
|
|
tb_next=previous, |
|
210
|
|
|
) |
|
211
|
|
|
return cls(previous) |
|
212
|
|
|
else: |
|
213
|
|
|
raise TracebackParseError("Could not find any frames in %r." % string) |
|
214
|
|
|
|
ionelmc /
python-tblib
