added download images nb
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17198a2dfb
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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Mediawiki API Download Images"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Let's first test it with one image.\n",
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"# For example: File:Debo 009 05 01.jpg\n",
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"\n",
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"filename = 'Debo 009 05 01.jpg'\n",
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"filename = filename.replace(' ', '_') # let's replace spaces again with _\n",
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"filename = filename.replace('.jpg', '') # and let's remove the file extension"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# We cannot ask the API for the URL of a specific image (:///), but we can still find it using the \"aifrom=\" parameter.\n",
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"# Note: ai=allimages\n",
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"url = f'https://pzwiki.wdka.nl/mw-mediadesign/api.php?action=query&list=allimages&aifrom={ filename }&format=json'\n",
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"response = urllib.request.urlopen(url).read()\n",
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"data = json.loads(response)\n",
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"JSON(data)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Select the first result [0], let's assume that that is always the right image that we need :)\n",
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"image = data['query']['allimages'][0]"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print(image)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print(image['url'])"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"Now we can use this URL to download the images!"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"image_url = image['url']\n",
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"image_filename = image['name']\n",
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"image_response = urllib.request.urlopen(image_url).read() # We use urllib for this again, this is basically our tool to download things from the web !"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print(image_response)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"out = open(image_filename, 'wb') # 'wb' stands for 'write bytes', we basically ask this file to accept data in byte format\n",
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"out.write(image_response)\n",
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"out.close()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Download all the images of our page"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# We have our variable \"images\"\n",
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"print(images)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Let's loop through this list and download each image!\n",
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"for filename in images:\n",
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" print('Downloading:', filename)\n",
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" \n",
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" filename = filename.replace(' ', '_') # let's replace spaces again with _\n",
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" filename = filename.replace('.jpg', '').replace('.gif', '').replace('.png','').replace('.jpeg','').replace('.JPG','').replace('.JPEG','') # and let's remove the file extension\n",
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" \n",
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" # first we search for the full URL of the image\n",
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" url = f'https://pzwiki.wdka.nl/mw-mediadesign/api.php?action=query&list=allimages&aifrom={ filename }&format=json'\n",
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" response = urllib.request.urlopen(url).read()\n",
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" data = json.loads(response)\n",
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" image = data['query']['allimages'][0]\n",
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" \n",
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" # then we download the image\n",
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" image_url = image['url']\n",
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" image_filename = image['name']\n",
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" image_response = urllib.request.urlopen(image_url).read()\n",
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" \n",
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" # and we save it as a file\n",
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" out = open(image_filename, 'wb') \n",
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" out.write(image_response)\n",
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" out.close()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.7.3"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 4
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}
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