1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
import collections
import inspect
FullArgSpec = collections.namedtuple(
"FullArgSpec",
[
"args",
"varargs",
"varkw",
"defaults",
"kwonlyargs",
"kwonlydefaults",
"annotations",
],
)
ArgSpec = collections.namedtuple(
"ArgSpec", ["args", "varargs", "keywords", "defaults"]
)
def inspect_getfullargspec(func):
"""Fully vendored version of getfullargspec from Python 3.3.
This version is more performant than the one which appeared in
later Python 3 versions.
"""
# if a Signature is already present, as is the case with newer
# "decorator" package, defer back to built in
if hasattr(func, "__signature__"):
return inspect.getfullargspec(func)
if inspect.ismethod(func):
func = func.__func__
if not inspect.isfunction(func):
raise TypeError("{!r} is not a Python function".format(func))
co = func.__code__
if not inspect.iscode(co):
raise TypeError("{!r} is not a code object".format(co))
nargs = co.co_argcount
names = co.co_varnames
nkwargs = co.co_kwonlyargcount
args = list(names[:nargs])
kwonlyargs = list(names[nargs : nargs + nkwargs])
nargs += nkwargs
varargs = None
if co.co_flags & inspect.CO_VARARGS:
varargs = co.co_varnames[nargs]
nargs = nargs + 1
varkw = None
if co.co_flags & inspect.CO_VARKEYWORDS:
varkw = co.co_varnames[nargs]
return FullArgSpec(
args,
varargs,
varkw,
func.__defaults__,
kwonlyargs,
func.__kwdefaults__,
func.__annotations__,
)
def inspect_getargspec(func):
return ArgSpec(*inspect_getfullargspec(func)[0:4])
|
