Getting started with Deep Learning in TensorFlow and Swift

There are 3 ways to get started with coding Swift & TensorFlow:

• Google Colab (Basic: Windows/Mac/Linux)
• Command Line (Advanced: Mac/Linux)
• REPL Playground XCode (Basic: Mac | Coming Soon…)

Note: I’ll cover first two approaches today in today’s blogpost ie. google colab & command line. I’ll keep 3rd approach for separate video where I’ll also teach you more about Swift & it’s playground

1. Google Colab

First we need to create an empty swift.ipynb notebook. You can do this by going to terminal and typing

Now .ipynb files contains json. To make it a swift, all notebook we need is some json inside the notebook

Open the notebook in your favourite code editor. I prefer VSCode

should open VSCode from terminal. Now copy paste below json in swift.ipynb

{
  "nbformat": 4,
  "nbformat_minor": 0,
  "metadata": {
    "colab": {
      "name": "swift_notebook.ipynb",
      "version": "0.3.2",
      "provenance": [],
      "collapsed_sections": []
    },
    "kernelspec": {
      "name": "swift",
      "display_name": "Swift"
    }
  },
  "cells": [
    {
      "metadata": {
        "id": "icDfXRlHRYvE",
        "colab_type": "code",
        "outputId": "a1489762-9fe2-4fac-8e24-e3c969f51c8c",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 55
        }
      },
      "cell_type": "code",
      "source": [
        "let x = 2\n",
        "let y = 2\n",
        "print(\"Hello world, this is Swift! \\(x + y)\")"
      ],
      "execution_count": 0,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "Hello world, this is Swift! 4\r\n"
          ],
          "name": "stdout"
        }
      ]
    }
  ]
}

Now go to https://colab.research.google.com/notebooks/welcome.ipynb and then click on File > Upload Notebook

Upload your Swift.ipynb & you are done. You can now write Swift & TensorFlow code in there

2. Command Line

Download Swift-TensorFlow for Mac or Ubuntu from here: https://github.com/tensorflow/swift/blob/master/Installation.md

Since I’m on mac so I’ll download XCode10 .pkg file

Installation for Mac & XCode are given here: https://github.com/tensorflow/swift/blob/master/Installation.md#installation

Once you have everything setup you can use Swift just like Python in terminal

• Comping `.swift` files

basics.swift

print("Tensorflow Basics Tutorial")

import TensorFlow

let x = Tensor<Float>([[2,2,], [2,2]])
print(x)

Now we will compile basics.swift using swift compiler. Open Terminal

• REPL

Swift has Python like REPL since swift compiler is based on LLVM Infrastructure

What's next?

• I want to discuss why TensorFlow & Swift
• Swift Compiler Technology. How is it better than competition
• Using Python libraries with Swift-TensorFlow