Conduct a simple split by attributes on a shapefile. Similar to tools in QGIS and ArcGIS, but much faster (especially when working with large files)! A new shapefile will be created for every (group of) unique attribute(s)

Split shapefile by attributes.ipynb

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   "source": [
    "import os\n",
    "import tkinter.filedialog as tkfd\n",
    "import tkinter.simpledialog as tksd\n",
    "import fiona"
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    "# locate your input shapefile\n",
    "infile = tkfd.askopenfilename(title = \"Select your shapefile\", \n",
    "                              initialdir = \"C:/\", \n",
    "                              filetypes = ((\"shapefile\", \"*.shp\"),(\"all files\", \"*.*\")))"
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    "# define destination -folder- where output -shapefiles- will be written\n",
    "dest = tkfd.askdirectory(title = \"Select your output folder\", \n",
    "                         initialdir = \"C:/\")"
   ]
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   "cell_type": "code",
   "execution_count": 4,
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   "source": [
    "# define field to split by attributes\n",
    "field = tksd.askstring(\"Field\", \"Enter the name of the field to conduct the split by attributes on\")"
   ]
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    "# Works fine, for both unique and non-unique attribute values!\n",
    "# records with the same attributes are grouped in seperate, new shapefiles...\n",
    "# PROPER split by attributes for shapefiles! Hell Yeh!!\n",
    "\n",
    "with fiona.open(infile) as source:\n",
    "    meta = source.meta\n",
    "    for f in source:\n",
    "        outfile = os.path.join(dest, \"%s.shp\" % f['properties'][field])\n",
    "        try:\n",
    "            with fiona.open(outfile, 'a', **meta) as sink:\n",
    "                sink.write(f)\n",
    "        except:\n",
    "            with fiona.open(outfile, 'w', **meta) as sink:\n",
    "                sink.write(f)"
   ]
  }
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