more information when downloading blobs fails

rerun_py/depthai_viewer/install_requirements.py

@@ -7,12 +7,14 @@
 import traceback
 from typing import Any, Dict
 
-from depthai_viewer import version as depthai_viewer_version  # type: ignore[attr-defined]
+# type: ignore[attr-defined]
+from depthai_viewer import version as depthai_viewer_version
 
 script_path = os.path.dirname(os.path.abspath(__file__))
 venv_dir = os.path.join(script_path, "venv-" + depthai_viewer_version())
 venv_python = (
-    os.path.join(venv_dir, "Scripts", "python") if sys.platform == "win32" else os.path.join(venv_dir, "bin", "python")
+    os.path.join(venv_dir, "Scripts", "python") if sys.platform == "win32" else os.path.join(
+        venv_dir, "bin", "python")
 )
 
 
@@ -22,18 +24,21 @@ def delete_partially_created_venv(path: str) -> None:
             print(f"Deleting partially created virtual environment: {path}")
             shutil.rmtree(path)
     except Exception as e:
-        print(f"Error occurred while attempting to delete the virtual environment: {e}")
+        print(
+            f"Error occurred while attempting to delete the virtual environment: {e}")
         print(traceback.format_exc())
 
 
-def sigint_mid_venv_install_handler(signum, frame) -> None:  # type: ignore[no-untyped-def]
+# type: ignore[no-untyped-def]
+def sigint_mid_venv_install_handler(signum, frame) -> None:
     delete_partially_created_venv(venv_dir)
 
 
 def get_site_packages() -> str:
     """Gets site packages dir of the virtual environment. Throws an exception if site packages could not be fetched."""
     return subprocess.run(
-        [venv_python, "-c", "import sysconfig; print(sysconfig.get_paths()['purelib'], end='')"],
+        [venv_python, "-c",
+            "import sysconfig; print(sysconfig.get_paths()['purelib'], end='')"],
         capture_output=True,
         text=True,
         check=True,
@@ -76,10 +81,12 @@ def create_venv_and_install_dependencies() -> None:
             # In case of Ctrl+C during the venv creation, delete the partially created venv
             signal.signal(signal.SIGINT, sigint_mid_venv_install_handler)
             print("Creating virtual environment...")
-            subprocess.run([sys.executable, "-m", "venv", venv_dir], check=True)
+            subprocess.run(
+                [sys.executable, "-m", "venv", venv_dir], check=True)
 
             # Install dependencies
-            subprocess.run([venv_python, "-m", "pip", "install", "-U", "pip"], check=True)
+            subprocess.run([venv_python, "-m", "pip",
+                           "install", "-U", "pip"], check=True)
             # Install depthai_sdk first, then override depthai version with the one from requirements.txt
             subprocess.run(
                 [
@@ -93,7 +100,8 @@ def create_venv_and_install_dependencies() -> None:
                 check=True,
             )
             subprocess.run(
-                [venv_python, "-m", "pip", "install", "-r", f"{script_path}/requirements.txt"],
+                [venv_python, "-m", "pip", "install", "-r",
+                    f"{script_path}/requirements.txt"],
                 check=True,
             )
         venv_packages_dir = get_site_packages()
@@ -110,11 +118,24 @@ def create_venv_and_install_dependencies() -> None:
         env = os.environ.copy()
         env["PYTHONPATH"] = venv_packages_dir
         # Download blobs
-        subprocess.run(
-            [sys.executable, "-c", "from depthai_viewer.install_requirements import download_blobs; download_blobs()"],
-            check=True,
-            env=env,
-        )
+        try:
+            subprocess.run(
+                [sys.executable, "-c",
+                    "from depthai_viewer.install_requirements import download_blobs; download_blobs()"],
+                check=True,
+                env=env,
+                capture_output=True
+            )
+        except subprocess.CalledProcessError as e:
+
+            print("stderr")
+            print(e.stderr.decode('utf-8'))
+            print("stdout")
+            print(e.stdout.decode('utf-8'))
+            print("output")
+            print(e.output.decode('utf-8'))
+
+            raise e
 
         # Restore original SIGINT handler
         signal.signal(signal.SIGINT, original_sigint_handler)