Pathlib Essentials

pathlib.ipynb

{
  "cells": [
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "# File Paths with pathlib\n\nRequires Python ≥ 3.4"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "from pathlib import Path",
      "execution_count": 8,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "fullpath = Path('/foo/bar/baz.ext')",
      "execution_count": 9,
      "outputs": []
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Filename without directory path"
    },
    {
      "metadata": {
        "trusted": true,
        "scrolled": true
      },
      "cell_type": "code",
      "source": "print(fullpath.name)",
      "execution_count": 10,
      "outputs": [
        {
          "output_type": "stream",
          "text": "baz.ext\n",
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Filename without directory path and extension"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "print(fullpath.stem)",
      "execution_count": 11,
      "outputs": [
        {
          "output_type": "stream",
          "text": "baz\n",
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "File extension (including the dot separator)"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "print(fullpath.suffix)",
      "execution_count": 12,
      "outputs": [
        {
          "output_type": "stream",
          "text": ".ext\n",
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Directory path to file"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "print(fullpath.parent)",
      "execution_count": 13,
      "outputs": [
        {
          "output_type": "stream",
          "text": "/foo/bar\n",
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Test if file exists"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "print(fullpath.exists())",
      "execution_count": 14,
      "outputs": [
        {
          "output_type": "stream",
          "text": "False\n",
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Create path to file"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "print(Path('/foo/bar') / 'baz.ext')",
      "execution_count": 15,
      "outputs": [
        {
          "output_type": "stream",
          "text": "/foo/bar/baz.ext\n",
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Safe for empty directory paths"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "dir = Path('')\nprint(dir / 'foo.sh')",
      "execution_count": 16,
      "outputs": [
        {
          "output_type": "stream",
          "text": "foo.sh\n",
          "name": "stdout"
        }
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3",
      "language": "python"
    },
    "language_info": {
      "name": "python",
      "version": "3.6.11",
      "mimetype": "text/x-python",
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "pygments_lexer": "ipython3",
      "nbconvert_exporter": "python",
      "file_extension": ".py"
    }
  },
  "nbformat": 4,
  "nbformat_minor": 2
}