Add PyPI package (#576)

* Add PyPI package

* fixes

* fixes

appendix-D/01_main-chapter-code/appendix-D.ipynb

@@ -68,6 +68,11 @@
     "\n",
     "\n",
     "from previous_chapters import GPTModel\n",
+    "# If the `previous_chapters.py` file is not available locally,\n",
+    "# you can import it from the `llms-from-scratch` PyPI package.\n",
+    "# For details, see: https://github.com/rasbt/LLMs-from-scratch/tree/main/pkg\n",
+    "# E.g.,\n",
+    "# from llms_from_scratch.ch04 import GPTModel\n",
     "\n",
     "GPT_CONFIG_124M = {\n",
     "    \"vocab_size\": 50257,   # Vocabulary size\n",
@@ -139,6 +144,9 @@
    "outputs": [],
    "source": [
     "from previous_chapters import create_dataloader_v1\n",
+    "# Alternatively:\n",
+    "# from llms_from_scratch.ch02 import create_dataloader_v1\n",
+    "\n",
     "\n",
     "# Train/validation ratio\n",
     "train_ratio = 0.90\n",
@@ -454,6 +462,9 @@
    "outputs": [],
    "source": [
     "from previous_chapters import calc_loss_batch\n",
+    "# Alternatively:\n",
+    "# from llms_from_scratch.ch05 import calc_loss_batch\n",
+    "\n",
     "\n",
     "torch.manual_seed(123)\n",
     "model = GPTModel(GPT_CONFIG_124M)\n",
@@ -551,6 +562,9 @@
    "outputs": [],
    "source": [
     "from previous_chapters import evaluate_model, generate_and_print_sample\n",
+    "# Alternatively:\n",
+    "# from llms_from_scratch.ch05 import evaluate_model, generate_and_print_samplee\n",
+    "\n",
     "\n",
     "ORIG_BOOK_VERSION = False\n",
     "\n",
@@ -790,6 +804,9 @@
    ],
    "source": [
     "from previous_chapters import plot_losses\n",
+    "# Alternatively:\n",
+    "# from llms_from_scratch.ch05 import plot_losses\n",
+    "\n",
     "\n",
     "epochs_tensor = torch.linspace(1, n_epochs, len(train_losses))\n",
     "plot_losses(epochs_tensor, tokens_seen, train_losses, val_losses)\n",
@@ -823,7 +840,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.4"
+   "version": "3.10.16"
   }
  },
  "nbformat": 4,