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Description
Unable to instantiate Quart object with Flask==3.1.0.
Run the following code from terminal:
pip install quart
Run the following code:
from quart import Quart
Quart(__name__)Outputs the following error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File ".../.pyenv/lib/python3.11/site-packages/quart/app.py", line 338, in __init__
self.add_url_rule(
File ".../.pyenv/lib/python3.11/site-packages/flask/sansio/scaffold.py", line 47, in wrapper_func
return f(self, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File ".../.pyenv/lib/python3.11/site-packages/flask/sansio/app.py", line 641, in add_url_rule
if "OPTIONS" not in methods and self.config["PROVIDE_AUTOMATIC_OPTIONS"]:
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
KeyError: 'PROVIDE_AUTOMATIC_OPTIONS'
Output of pip freeze:
aiofiles==24.1.0
blinker==1.9.0
click==8.1.7
Flask==3.1.0
h11==0.14.0
h2==4.1.0
hpack==4.0.0
Hypercorn==0.17.3
hyperframe==6.0.1
itsdangerous==2.2.0
Jinja2==3.1.4
MarkupSafe==3.0.2
priority==2.0.0
Quart==0.19.8
Werkzeug==3.1.3
wsproto==1.2.0
Installing Flask==3.0.0 fixes the issue:
The expected behavior is a successful instantiation of a Quart object.
Environment:
- Python version:
3.11.3 - Flask version:
3.1.0
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