Fix python dependencies

examples/python-dataflow/requirements.txt

@@ -6,7 +6,7 @@ ultralytics
 gitpython
 ipython  # interactive notebook
 matplotlib>=3.2.2
-numpy>=1.18.5,<2.0.0
+numpy<2.0.0 # See: https://github.com/opencv/opencv-python/issues/997
 opencv-python>=4.1.1
 Pillow>=7.1.2
 psutil  # system resources

examples/python-dataflow/run.rs

@@ -1,5 +1,4 @@
 use dora_core::{get_pip_path, get_python_path, run};
-use dora_download::download_file;
 use dora_tracing::set_up_tracing;
 use eyre::{bail, ContextCompat, WrapErr};
 use std::path::Path;
@@ -73,12 +72,6 @@ async fn main() -> eyre::Result<()> {
     )
     .await
     .context("maturin develop failed")?;
-    download_file(
-        "https://github.com/ultralytics/assets/releases/download/v0.0.0/yolov8n.pt",
-        Path::new("yolov8n.pt"),
-    )
-    .await
-    .context("Could not download weights.")?;
 
     let dataflow = Path::new("dataflow.yml");
     run_dataflow(dataflow).await?;

examples/python-operator-dataflow/requirements.txt

@@ -6,7 +6,7 @@ ultralytics
 gitpython
 ipython  # interactive notebook
 matplotlib>=3.2.2
-numpy>=1.18.5,<2.0.0
+numpy<2.0.0
 opencv-python>=4.1.1
 Pillow>=7.1.2
 psutil  # system resources