Thanks to typeshed-stats (#9386), I was able to make the following list of stubs majorly using Any, indicating that they've likely not been switched over to Incomplete yet.
Ordered by ratio of "explicit Any / explicit Incomplete + 1" parameters and variables.
Excludes stubs marked as obsolete and ratio <= 1 rounded down.
Package Name
Explicit Any
Explicit Incomplete
Ratio
WebOb
119
0
119
WTForms
114
0
114
simplejson
59
0
59
python-gflags
50
0
50
regex
41
0
41
pyflakes
40
0
40
Markdown
33
0
33
jmespath
60
1
30
toml
30
0
30
decorator
28
0
28
python-xlib
28
0
28
uWSGI
21
0
21
gevent
114
5
19
polib
18
0
18
slumber
16
0
16
six
15
0
15
PyYAML
216
14
14
pynput
14
0
14
stdlib
3295
237
13
opentracing
25
1
12
hdbcli
24
1
12
python-jose
56
4
11
fanstatic
11
0
11
Flask-Cors
10
0
10
mypy-extensions
10
0
10
protobuf
144
15
9
parsimonious
27
2
9
capturer
9
0
9
croniter
9
0
9
greenlet
8
0
8
singledispatch
8
0
8
translationstring
8
0
8
xmltodict
8
0
8
html5lib
179
24
7
paramiko
45
6
6
console-menu
11
1
5
waitress
5
0
5
python-crontab
18
3
4
cachetools
4
0
4
colorama
4
0
4
qrbill
4
0
4
Pygments
178
47
3
vobject
93
24
3
PyMySQL
88
28
3
dateparser
86
21
3
Send2Trash
3
0
3
untangle
3
0
3
usersettings
3
0
3
seaborn
186
65
2
mock
137
45
2
psycopg2
97
37
2
beautifulsoup4
72
33
2
aws-xray-sdk
61
21
2
humanfriendly
54
22
2
requests
53
19
2
JACK-Client
2
0
2
chevron
2
0
2
first
2
0
2
ibm-db
2
0
2
libsass
2
0
2
retry
2
0
2
tabulate
2
0
2
toposort
2
0
2
gdb
2
0
2
(updated as of 2023-11-02)
We can also list 3rd party stubs by how many module-level and class-level variables they have:
for d in stubs/*/; do echo "$d,$( grep -ERoi '(^| )[[:alnum:]]+?: Any$' $d | wc -l )"; done
Do you think it's fine doing a single PR for those (single search & replace change across many third party stubs) instead of 40-70 PRs?
Maybe we could start off doing a grep for (or using a script to auto-update) function signatures with foo: Any | None = .... We can be pretty confident that those are artefacts of stubgen, so we can probably update all of those to foo: Incomplete | None = ... in a bulk PR pretty safely.
Fields that contain Any, either standalone or as union.
: Any | None\n seems very safe to do a search-and-replace for. For : Any\n, I feel a little queasy. But I'd feel more confident if we only replaced places which had, say, three Any attributes in a row, e.g.
It might actually be fine to change every Any in old stubs to Incomplete. In theory, we'll go over the Incompletes later and change them back to Any if appropriate.
The only thing I'm a bit uneasy about is changing Any | None return types, because they are fairly common workarounds for the missing permissive union type, and they are not that easy to spot.
Similar to : Any | None = ..., : Any | None\n seems like an equivalent stubgen artefact for class variables.
Fancy taking this on as "stage 2", @Avasam? (Regardless of how far we want to go, I think I'd prefer to keep doing this in stages, so we can evaluate the risk level for each stage independently.)
The only thing I'm a bit uneasy about is changing Any | None return types, because they are fairly common workarounds for the missing permissive union type, and they are not that easy to spot.
I had the same thought while just reading through this thread again. :)
Since our current policy asks for all Anys to be commented, it's also easier to manually spot Anys that need either to be changed to Incomplete or commented. I'm not sure if it help much with an automated process, though.
Activity
Avasam commented on Jan 17, 2023
Do you think it's fine doing a single PR for those (single search & replace change across many third party stubs) instead of 40-70 PRs?
Still gotta validate that those with few Any actually meant it. Bigger ones can probably be mostly blindly changed?
AlexWaygood commented on Jan 17, 2023
Maybe we could start off doing a grep for (or using a script to auto-update) function signatures with foo: Any | None = .... We can be pretty confident that those are artefacts of stubgen, so we can probably update all of those to foo: Incomplete | None = ... in a bulk PR pretty safely.
srittau commented on Jan 17, 2023
I'd say fairly safe, with only few false positives, are:
It's also not a complete disaster if a wrong Any gets changed to Incomplete, it just means it needs to be rechecked at some point.
Avasam commented on Jan 17, 2023
Similar to : Any | None = ..., : Any | None\n seems like an equivalent stubgen artefact for class variables.
AlexWaygood commented on Jan 17, 2023
: Any | None\n seems very safe to do a search-and-replace for. For : Any\n, I feel a little queasy. But I'd feel more confident if we only replaced places which had, say, three Any attributes in a row, e.g.
We could find those using regexes or AST.
Avasam commented on Jan 17, 2023
Seems fine to me after running those we deem "safer".
+1 What Alex said.
After : Any | None = ... and : Any | None\n there's 15 Any | None left. And except for mock they do mostly look like they could be Incomplete | None.
After a series of "autofixes". I can update the table above to see if there's still any obvious ones.
JelleZijlstra commented on Jan 17, 2023
It might actually be fine to change every Any in old stubs to Incomplete. In theory, we'll go over the Incompletes later and change them back to Any if appropriate.
srittau commented on Jan 17, 2023
The only thing I'm a bit uneasy about is changing Any | None return types, because they are fairly common workarounds for the missing permissive union type, and they are not that easy to spot.
Avasam commented on Jan 17, 2023
@srittau
I agree with return types. I didn't include them in my table above for similar reasons.
TypeAliases should probably also be left untouched if I"m to guess.
AlexWaygood commented on Jan 18, 2023
Fancy taking this on as "stage 2", @Avasam? (Regardless of how far we want to go, I think I'd prefer to keep doing this in stages, so we can evaluate the risk level for each stage independently.)
Avasam commented on Jan 18, 2023
plus we may learn things so the same can be done for stdlib
Avasam commented on Mar 27, 2025
We now have MaybeNone for those !
srittau commented on Mar 27, 2025
I had the same thought while just reading through this thread again. :)
Since our current policy asks for all Anys to be commented, it's also easier to manually spot Anys that need either to be changed to Incomplete or commented. I'm not sure if it help much with an automated process, though.
Avasam commented on Jun 4, 2026
I think this ia now well-anchored enough into reviewers and regular contributors' habit that I don't feel the need to track this anymore.