MongoDsn.build gives AttributeError

[quizmoon]

Initial Checks

• I confirm that I'm using Pydantic V2

Description

Using build on MongoDsn gives error:

url = MongoDsn.build(scheme=scheme, username=username, password=password, host=host)
      ^^^^^^^^^^^^^^

File "/usr/lib/python3.11/typing.py", line 1287, in getattr
return getattr(self.origin, attr)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/typing.py", line 450, in getattr
raise AttributeError(item)
AttributeError: build

Example Code

url = MongoDsn.build(scheme=scheme, username=username, password=password, host=host)

Python, Pydantic & OS Version

pydantic version: 2.1.1
        pydantic-core version: 2.4.0
          pydantic-core build: profile=release pgo=true mimalloc=true
               python version: 3.11.4 (main, Jun  7 2023, 12:45:48) [GCC 11.3.0]
                     platform: Linux-5.19.0-50-generic-x86_64-with-glibc2.35
     optional deps. installed: ['typing-extensions']

Selected Assignee: @hramezani

[quizmoon]

Additionally, if build url using MultiHostUrl and then create instance of MongoDsn from it:

url = MultiHostUrl.build(scheme=scheme, username=username, password=password, host=host)
MongoDsn(url)

Will give the error:

MongoDsn(url)
^^^^^^^^^^^^^
File "/usr/lib/python3.11/typing.py", line 1261, in call
result = self.origin(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/typing.py", line 462, in call
raise TypeError(f"Cannot instantiate {self!r}")
TypeError: Cannot instantiate typing.Union

[Kludex]

It doesn't look like you are in the latest version of Pydantic 🤔

You sure you are using the version 2.1.1?

Caused by #6827