Use tf_keras instead of Keras 3

This commit is contained in:
Aurélien Geron
2024-10-06 17:04:51 +13:00
parent f08e739537
commit 9e7002c88a

View File

@@ -60,6 +60,25 @@
"assert sys.version_info >= (3, 7)" "assert sys.version_info >= (3, 7)"
] ]
}, },
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Warning**: the latest TensorFlow versions are based on Keras 3. For chapters 10-15, it wasn't too hard to update the code to support Keras 3, but unfortunately it's much harder for this chapter, in particular adding custom losses using the functional API is not implemented yet. So for this chapter I've had to revert to Keras 2. To do that, I set the `TF_USE_LEGACY_KERAS` environment variable to `\"1\"` and import the `tf_keras` package. This ensures that `tf.keras` points to `tf_keras`, which is Keras 2.*."
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [],
"source": [
"import os\n",
"os.environ[\"TF_USE_LEGACY_KERAS\"] = \"1\" \n",
"\n",
"import tf_keras"
]
},
{ {
"cell_type": "markdown", "cell_type": "markdown",
"metadata": { "metadata": {
@@ -71,7 +90,7 @@
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"id": "0Piq5se2pKzx" "id": "0Piq5se2pKzx"
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@@ -94,7 +113,7 @@
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"id": "8d4TH3NbpKzx" "id": "8d4TH3NbpKzx"
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@@ -122,7 +141,7 @@
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"id": "PQFH5Y9PpKzy" "id": "PQFH5Y9PpKzy"
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@@ -151,7 +170,7 @@
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"metadata": { "metadata": {
"id": "Ekxzo6pOpKzy" "id": "Ekxzo6pOpKzy"
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@@ -179,7 +198,7 @@
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@@ -204,7 +223,7 @@
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@@ -229,7 +248,7 @@
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{ {
@@ -243,7 +262,7 @@
" '...']" " '...']"
] ]
}, },
"execution_count": 8, "execution_count": 9,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -263,7 +282,7 @@
}, },
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{ {
@@ -272,7 +291,7 @@
"EnvSpec(id='CartPole-v1', entry_point='gym.envs.classic_control.cartpole:CartPoleEnv', reward_threshold=475.0, nondeterministic=False, max_episode_steps=500, order_enforce=True, autoreset=False, disable_env_checker=False, apply_api_compatibility=False, kwargs={}, namespace=None, name='CartPole', version=1)" "EnvSpec(id='CartPole-v1', entry_point='gym.envs.classic_control.cartpole:CartPoleEnv', reward_threshold=475.0, nondeterministic=False, max_episode_steps=500, order_enforce=True, autoreset=False, disable_env_checker=False, apply_api_compatibility=False, kwargs={}, namespace=None, name='CartPole', version=1)"
] ]
}, },
"execution_count": 9, "execution_count": 10,
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"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -291,7 +310,7 @@
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{ {
@@ -300,7 +319,7 @@
"array([ 0.0273956 , -0.00611216, 0.03585979, 0.0197368 ], dtype=float32)" "array([ 0.0273956 , -0.00611216, 0.03585979, 0.0197368 ], dtype=float32)"
] ]
}, },
"execution_count": 10, "execution_count": 11,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -312,7 +331,7 @@
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"metadata": {}, "metadata": {},
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{ {
@@ -321,7 +340,7 @@
"{}" "{}"
] ]
}, },
"execution_count": 11, "execution_count": 12,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -346,7 +365,7 @@
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"execution_count": 12, "execution_count": 13,
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{ {
@@ -355,7 +374,7 @@
"(400, 600, 3)" "(400, 600, 3)"
] ]
}, },
"execution_count": 12, "execution_count": 13,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -367,7 +386,7 @@
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{ {
@@ -404,7 +423,7 @@
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{ {
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{ {
@@ -413,7 +432,7 @@
"Discrete(2)" "Discrete(2)"
] ]
}, },
"execution_count": 14, "execution_count": 15,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -438,7 +457,7 @@
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{ {
@@ -447,7 +466,7 @@
"array([ 0.02727336, 0.18847767, 0.03625453, -0.26141977], dtype=float32)" "array([ 0.02727336, 0.18847767, 0.03625453, -0.26141977], dtype=float32)"
] ]
}, },
"execution_count": 15, "execution_count": 16,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -467,7 +486,7 @@
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@@ -504,7 +523,7 @@
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{ {
@@ -513,7 +532,7 @@
"1.0" "1.0"
] ]
}, },
"execution_count": 17, "execution_count": 18,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -529,33 +548,6 @@
"When the game is over, the environment returns `done=True`. In this case, it's not over yet:" "When the game is over, the environment returns `done=True`. In this case, it's not over yet:"
] ]
}, },
{
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"execution_count": 18,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"False"
]
},
"execution_count": 18,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"done"
]
},
{
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"metadata": {},
"source": [
"Some environment wrappers may want to interrupt the environment early. For example, when a time limit is reached or when an object goes out of bounds. In this case, `truncated` will be set to `True`. In this case, it's not truncated yet:"
]
},
{ {
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"execution_count": 19, "execution_count": 19,
@@ -572,6 +564,33 @@
"output_type": "execute_result" "output_type": "execute_result"
} }
], ],
"source": [
"done"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Some environment wrappers may want to interrupt the environment early. For example, when a time limit is reached or when an object goes out of bounds. In this case, `truncated` will be set to `True`. In this case, it's not truncated yet:"
]
},
{
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{
"data": {
"text/plain": [
"False"
]
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}
],
"source": [ "source": [
"truncated" "truncated"
] ]
@@ -585,7 +604,7 @@
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@@ -594,7 +613,7 @@
"{}" "{}"
] ]
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"execution_count": 20, "execution_count": 21,
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@@ -612,7 +631,7 @@
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@@ -643,7 +662,7 @@
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@@ -667,7 +686,7 @@
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{ {
@@ -676,7 +695,7 @@
"(41.698, 8.389445512070509, 24.0, 63.0)" "(41.698, 8.389445512070509, 24.0, 63.0)"
] ]
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@@ -703,7 +722,7 @@
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@@ -763,7 +782,7 @@
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@@ -800,7 +819,7 @@
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@@ -853,7 +872,7 @@
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@@ -885,7 +904,7 @@
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@@ -919,7 +938,7 @@
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@@ -948,7 +967,7 @@
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@@ -957,7 +976,7 @@
"array([-22, -40, -50])" "array([-22, -40, -50])"
] ]
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@@ -975,7 +994,7 @@
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@@ -987,7 +1006,7 @@
" array([1.26665318, 1.0727777 ])]" " array([1.26665318, 1.0727777 ])]"
] ]
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@@ -999,7 +1018,7 @@
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@@ -1228,7 +1247,7 @@
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@@ -1239,7 +1258,7 @@
" [ -inf, 50.13365013, -inf]])" " [ -inf, 50.13365013, -inf]])"
] ]
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@@ -1250,7 +1269,7 @@
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@@ -1259,7 +1278,7 @@
"array([0, 0, 1])" "array([0, 0, 1])"
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"execution_count": 70, "execution_count": 71,
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
{ {
@@ -2131,7 +2150,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 71, "execution_count": 72,
"metadata": { "metadata": {
"scrolled": true "scrolled": true
}, },
@@ -2150,7 +2169,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 72, "execution_count": 73,
"metadata": {}, "metadata": {},
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"source": [ "source": [
@@ -2209,7 +2228,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 73, "execution_count": 74,
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"source": [ "source": [
@@ -2225,7 +2244,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 74, "execution_count": 75,
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
{ {
@@ -2236,7 +2255,7 @@
" 1. ], (8,), float32)" " 1. ], (8,), float32)"
] ]
}, },
"execution_count": 74, "execution_count": 75,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -2247,7 +2266,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 75, "execution_count": 76,
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
{ {
@@ -2257,7 +2276,7 @@
" -0.05269805, 0. , 0. ], dtype=float32)" " -0.05269805, 0. , 0. ], dtype=float32)"
] ]
}, },
"execution_count": 75, "execution_count": 76,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -2287,7 +2306,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 76, "execution_count": 77,
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
{ {
@@ -2296,7 +2315,7 @@
"Discrete(4)" "Discrete(4)"
] ]
}, },
"execution_count": 76, "execution_count": 77,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
@@ -2325,7 +2344,7 @@
}, },
{ {
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"execution_count": 77, "execution_count": 78,
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"source": [ "source": [
@@ -2359,7 +2378,7 @@
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{ {
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"execution_count": 78, "execution_count": 79,
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"source": [ "source": [
@@ -2401,7 +2420,7 @@
}, },
{ {
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"execution_count": 79, "execution_count": 80,
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"source": [ "source": [
@@ -2430,7 +2449,7 @@
}, },
{ {
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"execution_count": 80, "execution_count": 81,
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"source": [ "source": [
@@ -2449,7 +2468,7 @@
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{ {
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"execution_count": 81, "execution_count": 82,
"metadata": {}, "metadata": {},
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"source": [ "source": [
@@ -2466,7 +2485,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 82, "execution_count": 83,
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
{ {
@@ -2510,7 +2529,7 @@
}, },
{ {
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"execution_count": 83, "execution_count": 84,
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
{ {
@@ -2543,7 +2562,7 @@
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{ {
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"execution_count": 84, "execution_count": 85,
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"source": [ "source": [
@@ -2567,7 +2586,7 @@
}, },
{ {
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"execution_count": 85, "execution_count": 86,
"metadata": {}, "metadata": {},
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"source": [ "source": [
@@ -2626,7 +2645,7 @@
"hash": "95c485e91159f3a8b550e08492cb4ed2557284663e79130c96242e7ff9e65ae1" "hash": "95c485e91159f3a8b550e08492cb4ed2557284663e79130c96242e7ff9e65ae1"
}, },
"kernelspec": { "kernelspec": {
"display_name": "Python 3 (ipykernel)", "display_name": "Python 3",
"language": "python", "language": "python",
"name": "python3" "name": "python3"
}, },
@@ -2640,7 +2659,7 @@
"name": "python", "name": "python",
"nbconvert_exporter": "python", "nbconvert_exporter": "python",
"pygments_lexer": "ipython3", "pygments_lexer": "ipython3",
"version": "3.10.13" "version": "3.9.10"
} }
}, },
"nbformat": 4, "nbformat": 4,