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Enhance Monte Carlo agent with performance optimizations and memory efficiency

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- Updated weight and feature storage to use float32 for reduced memory bandwidth.
- Implemented compact storage for raw observations as uint8, batch-normalized at episode end.
- Introduced vectorized return computation and chunk-based weight updates using einsum.
- Reduced weight sanitization to once per episode instead of per-step.
- Refactored action selection and return calculation for improved efficiency.
This commit is contained in:
Arthur Danjou
2026-03-04 18:25:43 +01:00
parent 4bfae564ed
commit 63ebb3ec8d
1 changed files with 66 additions and 85 deletions
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151
M2/Reinforcement Learning/project/Project.ipynb
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@@ -528,6 +528,12 @@
" - Updates weights with semi-gradient: W[a] += alpha * (G - q(s,a)) * phi(s)\n",
"\n",
" Unlike TD methods (SARSA, Q-Learning), no update occurs until the episode ends.\n",
"\n",
" Performance optimizations over naive per-step implementation:\n",
" - float32 weights & features (halves memory bandwidth, faster SIMD)\n",
" - Raw observations stored compactly as uint8, batch-normalized at episode end\n",
" - Vectorized return computation & chunk-based weight updates via einsum\n",
" - Single weight sanitization per episode instead of per-step\n",
" \"\"\"\n",
"\n",
" def __init__(\n",
@@ -538,32 +544,20 @@
" gamma: float = 0.99,\n",
" seed: int = 42,\n",
" ) -> None:\n",
" \"\"\"Initialize Monte Carlo agent.\n",
"\n",
" Args:\n",
" n_features: Dimension of the feature vector phi(s).\n",
" n_actions: Number of discrete actions.\n",
" alpha: Learning rate.\n",
" gamma: Discount factor.\n",
" seed: RNG seed.\n",
"\n",
" \"\"\"\n",
" super().__init__(seed, n_actions)\n",
" self.n_features = n_features\n",
" self.alpha = alpha\n",
" self.gamma = gamma\n",
" self.W = np.zeros((n_actions, n_features), dtype=np.float64)\n",
" # Episode buffer: stores (state, action, reward) tuples\n",
" # Analogous to Lab 4's episode list in generate_episode\n",
" self.episode_buffer: list[tuple[np.ndarray, int, float]] = []\n",
" self.W = np.zeros((n_actions, n_features), dtype=np.float32)\n",
" self._obs_buf: list[np.ndarray] = []\n",
" self._act_buf: list[int] = []\n",
" self._rew_buf: list[float] = []\n",
"\n",
" def _q_values(self, phi: np.ndarray) -> np.ndarray:\n",
" \"\"\"Compute Q-values for all actions: q(s, a) = W[a] @ phi for each a.\"\"\"\n",
" return self.W @ phi\n",
"\n",
" def get_action(self, observation: np.ndarray, epsilon: float = 0.0) -> int:\n",
" \"\"\"Select action using ε-greedy policy over linear Q-values.\"\"\"\n",
" phi = normalize_obs(observation)\n",
" phi = observation.flatten().astype(np.float32) / np.float32(255.0)\n",
" q_vals = self._q_values(phi)\n",
" return epsilon_greedy(q_vals, epsilon, self.rng)\n",
"\n",
@@ -576,53 +570,51 @@
" done: bool,\n",
" next_action: int | None = None,\n",
" ) -> None:\n",
" \"\"\"Accumulate transitions and update at episode end with MC returns.\n",
" _ = next_state, next_action\n",
"\n",
" Follows Lab 4 mc_control_epsilon_soft / mc_control_exploring_starts:\n",
" 1. Append (state, action, reward) to episode buffer\n",
" 2. If not done: wait (no update yet)\n",
" 3. If done: compute returns backward and update weights\n",
"\n",
" The backward loop is exactly the Lab 4 pattern:\n",
" G = 0\n",
" for s, a, r in reversed(episode_buffer):\n",
" G = gamma * G + r\n",
" # update Q(s, a) toward G\n",
" \"\"\"\n",
" _ = next_state, next_action # Not used in MC\n",
"\n",
" self.episode_buffer.append((state, action, reward))\n",
" self._obs_buf.append(state)\n",
" self._act_buf.append(action)\n",
" self._rew_buf.append(reward)\n",
"\n",
" if not done:\n",
" return # Wait until episode ends\n",
" return\n",
"\n",
" # Episode finished: compute MC returns and update\n",
" # Backward pass through episode (Lab 4 pattern)\n",
" returns = 0.0\n",
" for s, a, r in reversed(self.episode_buffer):\n",
" returns = self.gamma * returns + r\n",
" n = len(self._rew_buf)\n",
" actions = np.array(self._act_buf, dtype=np.intp)\n",
"\n",
" phi = np.nan_to_num(normalize_obs(s), nan=0.0, posinf=0.0, neginf=0.0)\n",
" q_sa = float(self.W[a] @ phi)\n",
" if not np.isfinite(q_sa):\n",
" q_sa = 0.0\n",
" returns = np.empty(n, dtype=np.float32)\n",
" G = np.float32(0.0)\n",
" gamma32 = np.float32(self.gamma)\n",
" for i in range(n - 1, -1, -1):\n",
" G = gamma32 * G + np.float32(self._rew_buf[i])\n",
" returns[i] = G\n",
"\n",
" # Semi-gradient update toward the MC return G\n",
" # Analogous to Lab 4: Q[(s,a)] += (G - Q[(s,a)]) / N[(s,a)]\n",
" # but with linear approximation and fixed step size\n",
" if not np.isfinite(returns):\n",
" continue\n",
" alpha32 = np.float32(self.alpha)\n",
" chunk_size = 500\n",
" for start in range(0, n, chunk_size):\n",
" end = min(start + chunk_size, n)\n",
" cs = end - start\n",
"\n",
" delta = float(returns - q_sa)\n",
" if not np.isfinite(delta):\n",
" continue\n",
" raw = np.array(self._obs_buf[start:end])\n",
" phi = raw.reshape(cs, -1).astype(np.float32)\n",
" phi /= np.float32(255.0)\n",
"\n",
" td_step = float(np.clip(delta, -1_000.0, 1_000.0))\n",
" self.W[a] += self.alpha * td_step * phi\n",
" self.W[a] = np.nan_to_num(self.W[a], nan=0.0, posinf=1e6, neginf=-1e6)\n",
" ca = actions[start:end]\n",
" q_sa = np.einsum(\"ij,ij->i\", self.W[ca], phi)\n",
"\n",
" # Clear episode buffer for next episode\n",
" self.episode_buffer = []\n"
" deltas = np.clip(returns[start:end] - q_sa, -1000.0, 1000.0)\n",
"\n",
" for a in range(self.action_space):\n",
" mask = ca == a\n",
" if not np.any(mask):\n",
" continue\n",
" self.W[a] += alpha32 * (deltas[mask] @ phi[mask])\n",
"\n",
" self.W = np.nan_to_num(self.W, nan=0.0, posinf=1e6, neginf=-1e6)\n",
"\n",
" self._obs_buf.clear()\n",
" self._act_buf.clear()\n",
" self._rew_buf.clear()\n"
]
},
{
@@ -948,7 +940,7 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 11,
"id": "6f6ba8df",
"metadata": {},
"outputs": [
@@ -973,34 +965,23 @@
"name": "stderr",
"output_type": "stream",
"text": [
"objc[68875]: Class SDLApplication is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d2c8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8890). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDLAppDelegate is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d318) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e88e0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDLTranslatorResponder is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d390) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8958). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDLMessageBoxPresenter is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d3b8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8980). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDL_cocoametalview is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d408) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e89d0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDLOpenGLContext is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d458) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8a20). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDL_ShapeData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d4d0) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8a98). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDL_CocoaClosure is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d520) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8ae8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDL_VideoData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d570) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8b38). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDL_WindowData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d5c0) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8b88). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDLWindow is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d5e8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8bb0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class Cocoa_WindowListener is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d610) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8bd8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDLView is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d688) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8c50). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class METAL_RenderData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d700) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8cc8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class METAL_TextureData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d750) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8d18). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDL_RumbleMotor is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d778) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8d40). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[68875]: Class SDL_RumbleContext is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d7c8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1243e8d90). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n"
]
},
{
"ename": "",
"evalue": "",
"output_type": "error",
"traceback": [
"\u001b[1;31mLe noyau s’est bloqué lors de l’exécution du code dans une cellule active ou une cellule précédente. \n",
"\u001b[1;31mVeuillez vérifier le code dans la ou les cellules pour identifier une cause possible de l’échec. \n",
"\u001b[1;31mCliquez <a href='https://aka.ms/vscodeJupyterKernelCrash'>ici</a> pour plus d’informations. \n",
"\u001b[1;31mPour plus d’informations, consultez Jupyter <a href='command:jupyter.viewOutput'>log</a>."
"objc[49878]: Class SDLApplication is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d2c8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418890). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDLAppDelegate is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d318) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1244188e0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDLTranslatorResponder is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d390) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418958). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDLMessageBoxPresenter is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d3b8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418980). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDL_cocoametalview is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d408) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x1244189d0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDLOpenGLContext is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d458) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418a20). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDL_ShapeData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d4d0) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418a98). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDL_CocoaClosure is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d520) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418ae8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDL_VideoData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d570) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418b38). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDL_WindowData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d5c0) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418b88). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDLWindow is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d5e8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418bb0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class Cocoa_WindowListener is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d610) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418bd8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDLView is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d688) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418c50). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class METAL_RenderData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d700) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418cc8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class METAL_TextureData is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d750) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418d18). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDL_RumbleMotor is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d778) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418d40). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n",
"objc[49878]: Class SDL_RumbleContext is implemented in both /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/pygame/.dylibs/libSDL2-2.0.0.dylib (0x11118d7c8) and /Users/arthurdanjou/Workspace/studies/.venv/lib/python3.13/site-packages/cv2/.dylibs/libSDL2-2.0.0.dylib (0x124418d90). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.\n"
]
}
],
@@ -1051,7 +1032,7 @@
{
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"model_id": "3346e326a5c54902b5d3698add8cb9d4",
"model_id": "0d5d098d18014fe6b736683e0b8b2488",
"version_major": 2,
"version_minor": 0
},