Support python 3.7 (#802)

* Support python 3.7

* Update docs

README.md

@@ -72,9 +72,13 @@ For more complex changes (e.g., running with your own data/setting up a new NeRF
 
 ## 1. Installation: Setup the environment
 
+### Prerequisites
+
+CUDA must be installed on the system. This library has been tested with version 11.3. You can find more information about installing CUDA [here](https://docs.nvidia.com/cuda/cuda-quick-start-guide/index.html)
+
 ### Create environment
 
-We recommend using conda to manage dependencies. Make sure to install [Conda](https://docs.conda.io/en/latest/miniconda.html) before proceeding.
+Nerfstudio requires `python >= 3.7`. We recommend using conda to manage dependencies. Make sure to install [Conda](https://docs.conda.io/en/latest/miniconda.html) before proceeding.
 
 ```bash
 conda create --name nerfstudio -y python=3.8

docs/quickstart/installation.md

@@ -1,8 +1,12 @@
 # Installation
 
+## Prerequisites
+
+CUDA must be installed on the system. This library has been tested with version 11.3. You can find more information about installing CUDA [here](https://docs.nvidia.com/cuda/cuda-quick-start-guide/index.html)
+
 ## Create environment
 
-We recommend using conda to manage dependencies. Make sure to install [Conda](https://docs.conda.io/en/latest/miniconda.html) before preceding.
+Nerfstudio requires `python >= 3.7`. We recommend using conda to manage dependencies. Make sure to install [Conda](https://docs.conda.io/en/latest/miniconda.html) before preceding.
 
 ```bash
 conda create --name nerfstudio -y python=3.8

nerfstudio/cameras/camera_optimizers.py

@@ -20,13 +20,13 @@
 
 import functools
 from dataclasses import dataclass, field
-from typing import Literal, Type, Union
+from typing import Type, Union
 
 import torch
 import tyro
 from torch import nn
 from torchtyping import TensorType
-from typing_extensions import assert_never
+from typing_extensions import Literal, assert_never
 
 from nerfstudio.cameras.lie_groups import exp_map_SE3, exp_map_SO3xR3
 from nerfstudio.configs import base_config as cfg

nerfstudio/cameras/camera_utils.py

@@ -17,11 +17,12 @@
 """
 
 import math
-from typing import List, Literal, Optional, Tuple
+from typing import List, Optional, Tuple
 
 import numpy as np
 import torch
 from torchtyping import TensorType
+from typing_extensions import Literal
 
 _EPS = np.finfo(float).eps * 4.0
 

nerfstudio/configs/base_config.py

@@ -21,10 +21,11 @@
 from dataclasses import dataclass
 from datetime import datetime
 from pathlib import Path
-from typing import Any, Dict, List, Literal, Optional, Tuple, Type
+from typing import Any, Dict, List, Optional, Tuple, Type
 
 import yaml
 from rich.console import Console
+from typing_extensions import Literal
 
 from nerfstudio.configs.config_utils import to_immutable_dict
 

nerfstudio/data/dataparsers/nerfstudio_dataparser.py

@@ -18,12 +18,13 @@
 import math
 from dataclasses import dataclass, field
 from pathlib import Path, PureWindowsPath
-from typing import Literal, Optional, Type
+from typing import Optional, Type
 
 import numpy as np
 import torch
 from PIL import Image
 from rich.console import Console
+from typing_extensions import Literal
 
 from nerfstudio.cameras import camera_utils
 from nerfstudio.cameras.cameras import CAMERA_MODEL_TO_TYPE, Cameras, CameraType

nerfstudio/data/dataparsers/record3d_dataparser.py

@@ -17,11 +17,12 @@
 
 from dataclasses import dataclass, field
 from pathlib import Path
-from typing import Literal, Type
+from typing import Type
 
 import numpy as np
 import torch
 from scipy.spatial.transform import Rotation
+from typing_extensions import Literal
 
 from nerfstudio.cameras import camera_utils
 from nerfstudio.cameras.cameras import Cameras, CameraType

nerfstudio/field_components/encodings.py

@@ -17,13 +17,14 @@
 """
 
 from abc import abstractmethod
-from typing import Literal, Optional
+from typing import Optional
 
 import numpy as np
 import torch
 import torch.nn.functional as F
 from torch import nn
 from torchtyping import TensorType
+from typing_extensions import Literal
 
 from nerfstudio.field_components.base_field_component import FieldComponent
 from nerfstudio.utils.math import components_from_spherical_harmonics, expected_sin

nerfstudio/model_components/renderers.py

@@ -27,12 +27,13 @@
 
 """
 import math
-from typing import Literal, Optional, Union
+from typing import Optional, Union
 
 import nerfacc
 import torch
 from torch import nn
 from torchtyping import TensorType
+from typing_extensions import Literal
 
 from nerfstudio.cameras.rays import RaySamples
 from nerfstudio.utils.math import components_from_spherical_harmonics

nerfstudio/models/nerfacto.py

@@ -19,14 +19,15 @@
 from __future__ import annotations
 
 from dataclasses import dataclass, field
-from typing import Dict, List, Literal, Tuple, Type
+from typing import Dict, List, Tuple, Type
 
 import numpy as np
 import torch
 from torch.nn import Parameter
 from torchmetrics import PeakSignalNoiseRatio
 from torchmetrics.functional import structural_similarity_index_measure
 from torchmetrics.image.lpip import LearnedPerceptualImagePatchSimilarity
+from typing_extensions import Literal
 
 from nerfstudio.cameras.rays import RayBundle
 from nerfstudio.engine.callbacks import (

pyproject.toml

@@ -8,7 +8,7 @@ version = "0.1.5.1"
 description = "All-in-one repository for state-of-the-art NeRFs"
 readme = "README.md"
 license = { text="Apache 2.0"}
-requires-python = ">=3.8"
+requires-python = ">=3.7.3"
 classifiers = [
     "Development Status :: 3 - Alpha",
     "Programming Language :: Python",
@@ -30,7 +30,7 @@ dependencies = [
     "mediapy==1.1.0",
     "msgpack==1.0.4",
     "msgpack_numpy==0.4.8",
-    "nerfacc==0.2.0",
+    "nerfacc==0.2.1",
     "opencv-python==4.6.0.66",
     "plotly==5.7.0",
     "protobuf==3.20.0",

scripts/completions/install.py

@@ -10,12 +10,12 @@
 import stat
 import subprocess
 import sys
-from typing import List, Literal, Union
+from typing import List, Union
 
 import tyro
 from rich.console import Console
 from rich.prompt import Confirm
-from typing_extensions import assert_never
+from typing_extensions import Literal, assert_never
 
 ConfigureMode = Literal["install", "uninstall"]
 ShellType = Literal["zsh", "bash"]
@@ -175,10 +175,7 @@ def _update_rc(
         assert_never(mode)
 
 
-def main(
-    mode: ConfigureMode = "install",
-    /,
-) -> None:
+def main(mode: ConfigureMode = "install") -> None:
     """Main script.
 
     Args:

scripts/downloads/download_data.py

@@ -4,11 +4,12 @@
 import sys
 import zipfile
 from pathlib import Path
-from typing import Literal, Optional
+from typing import Optional
 
 import gdown
 import tyro
 from rich.console import Console
+from typing_extensions import Literal
 
 CONSOLE = Console(width=120)
 

scripts/process_data.py

@@ -9,15 +9,15 @@
 from dataclasses import dataclass
 from enum import Enum
 from pathlib import Path
-from typing import List, Literal, Optional, Tuple, Union
+from typing import List, Optional, Tuple, Union
 
 import appdirs
 import numpy as np
 import requests
 import tyro
 from rich.console import Console
 from rich.progress import track
-from typing_extensions import Annotated
+from typing_extensions import Annotated, Literal
 
 from nerfstudio.utils import colmap_utils, install_checks
 

scripts/render.py

@@ -8,7 +8,7 @@
 import json
 import sys
 from pathlib import Path
-from typing import Literal, Optional
+from typing import Optional
 
 import mediapy as media
 import torch
@@ -21,7 +21,7 @@
     TextColumn,
     TimeRemainingColumn,
 )
-from typing_extensions import assert_never
+from typing_extensions import Literal, assert_never
 
 from nerfstudio.cameras.camera_paths import get_path_from_json, get_spiral_path
 from nerfstudio.cameras.cameras import Cameras