fix camera_model initialization (#264)

* fix camera_model initialization

* bump version number

Author: sasha-scale

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to the [Nucleus Python Client](https://github.com/scaleapi/n
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.8.2](https://github.com/scaleapi/nucleus-python-client/releases/tag/v0.8.2) - 2022-03-18
+
+### Added
+- a fix to the CameraModels enumeration to fix export of camera calibrations for 3D scenes
+
 ## [0.8.1](https://github.com/scaleapi/nucleus-python-client/releases/tag/v0.8.0) - 2022-03-18
 
 ### Added

nucleus/dataset_item.py

@@ -37,7 +37,7 @@
 )
 
 
-class CameraModels(Enum):
+class CameraModels(str, Enum):
     BROWN_CONRADY = "brown_conrady"
     FISHEYE = "fisheye"
 
@@ -122,7 +122,7 @@ class CameraParams:
 
     def __post_init__(self):
         if self.camera_model is not None:
-            if self.camera_model not in CameraModels:
+            if self.camera_model not in (k for k in CameraModels):
                 raise ValueError(
                     f'Invalid Camera Model, the supported options are "{CameraModels.BROWN_CONRADY}" and "{CameraModels.FISHEYE}"'
                 )
@@ -137,13 +137,13 @@ def from_json(cls, payload: Dict[str, Any]):
             payload[FY_KEY],
             payload[CX_KEY],
             payload[CY_KEY],
+            payload.get(CAMERA_MODEL_KEY, None),
             payload.get(K1_KEY, None),
             payload.get(K2_KEY, None),
             payload.get(K3_KEY, None),
             payload.get(K4_KEY, None),
             payload.get(P1_KEY, None),
             payload.get(P2_KEY, None),
-            payload.get(CAMERA_MODEL_KEY, None),
         )
 
     def to_payload(self) -> dict:

pyproject.toml

@@ -21,7 +21,7 @@ exclude = '''
 
 [tool.poetry]
 name = "scale-nucleus"
-version = "0.8.1"
+version = "0.8.2"
 description = "The official Python client library for Nucleus, the Data Platform for AI"
 license =  "MIT"
 authors = ["Scale AI Nucleus Team <nucleusapi@scaleapi.com>"]