feat: move to Pydantic 2.0 and use the 1.10 patch branch

[AbeCoull]

Issue #, if available:

Description of changes:
Ran:

find src/* -type f -exec sed -i 's/from pydantic/from pydantic.v1/g' {} \;

find test/* -type f -exec sed -i 's/from pydantic/from pydantic.v1/g' {} \;

Testing done:
Passed tox execution and tested the branch with the SDK and Default-sim repos with similar patches. Both successfully passed tox executions.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (66d5f0e) to head (073c04d).

Additional details and impacted files

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  Files           93        93           
  Lines         1398      1398           
  Branches        25        25           
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  Hits          1398      1398           

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[AbeCoull]

Dependent tests are expected to fail as they have version conflicts due to their dependency constraints. See testing notes for more details.

[isobelhooper]

Out of interest, is there a timeline for this PR being worked on? I'm working on a project that uses Braket (including this library and https://github.com/amazon-braket/amazon-braket-default-simulator-python) and because of these dependencies we're still limited to Pydantic v1. Would be good to be able to upgrade!

[AbeCoull]

Hi @isobelhooper and apologies for the delay.

The team is currently exploring options to make these upgrades, we will post more information in this thread when we have an update.

[AbeCoull]

Relaxing constraints in the default simulator: amazon-braket/amazon-braket-default-simulator-python#224

[richrines1]

maybe not super elegant, but fwiw to avoid conflicts with downstream dependencies you could also use something like

try:
    from pydantic.v1 import ...
except ImportError:
    from pydantic import ...

everywhere (at least temporarily) and just pin pydantic >= 1.8.2 so this would work with both pydantic 1.* and 2.*

[AbeCoull]

Hi @richrines1, thank you for the suggestion. The team is going to use a slightly different release method with pinned versions to unblock this.