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mypy 1.4.0 is not compatible with typing-extensions 3.10 version #15487
Description
Bug Report
mypy 1.4.0 is not compatible with typing-extensions 3.10 version.
To Reproduce
Install mypy 1.4.0 on an environment where typing_extensions library has a 3.10 version
Python version is used 3.11
pip3 show typing_extensions
Name: typing-extensions
Version: 3.10.0.2
Summary: Backported and Experimental Type Hints for Python 3.5+
Home-page: https://github.com/python/typing/blob/master/typing_extensions/README.rst
Author: Guido van Rossum, Jukka Lehtosalo, Łukasz Langa, Michael Lee
Author-email: [email protected]
License: PSF
Location: /usr/local/lib/python3.11/site-packages
Requires:
Required-by: mypy
pip3 list | grep mypy
mypy 1.4.0
mypy-extensions 1.0.0
run
mypy .
Expected Behavior
mypy starts and runs the analysis
Actual Behavior
mypy .
Traceback (most recent call last):
File "/usr/local/bin/mypy", line 5, in <module>
from mypy.__main__ import console_entry
File "/usr/local/lib/python3.11/site-packages/mypy/__main__.py", line 9, in <module>
from mypy.main import main, process_options
File "mypy/main.py", line 14, in <module>
File "mypy/build.py", line 47, in <module>
File "mypy/semanal_main.py", line 35, in <module>
File "mypy/checker.py", line 27, in <module>
File "mypy/checkexpr.py", line 13, in <module>
File "mypy/applytype.py", line 5, in <module>
File "mypy/subtypes.py", line 8, in <module>
File "mypy/constraints.py", line 9, in <module>
File "mypy/typeops.py", line 13, in <module>
File "mypy/copytype.py", line 5, in <module>
File "mypy/types.py", line 20, in <module>
def f():
ImportError: cannot import name 'Self' from 'typing_extensions' (/usr/local/lib/python3.11/site-packages/typing_extensions.py)
Your Environment
- Mypy version used: 1.4.0.
- Mypy command-line flags: none
- Mypy configuration options from
mypy.ini(and other config files): none - Python version used: Python 3.11.4 (main, Jun 15 2023, 07:29:58) [Clang 14.0.3 (clang-1403.0.22.14.1)] on darwin
Activity
cdce8p commentedon Jun 21, 2023
Yeah. Mypy started using
Selfwhich is only available intyping_extensions>=4.0.0. I'll open a PR shortly to bump the requirement. In the meantime, you can updatetyping_extensionsmanually.cdce8p commentedon Jun 21, 2023
Just a heads up. We just discovered another new import. You'll need to use at least version
4.1.0.AlexWaygood commentedon Jun 21, 2023
(The import in question is
is_typeddict, which is new in typing_extensions 4.1.0 -- we importis_typeddictinmypy/stubtest.py. But theis_typeddictimport in stubtest has actually been there for a while, I think -- the reason it's never come up before now is probably because only a subset of mypy users are stubtest users :)