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README.md

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+Fun and useful projects with Python

googleimagedownloader/main.py

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+import os
+import json 
+import requests # to sent GET requests
+from bs4 import BeautifulSoup # to parse HTML
+
+GOOGLE_IMAGE = \
+    'https://www.google.com/search?site=&tbm=isch&source=hp&biw=1873&bih=990&'
+
+# The User-Agent request header contains a characteristic string 
+# that allows the network protocol peers to identify the application type, 
+# operating system, and software version of the requesting software user agent.
+# needed for google search
+usr_agent = {
+    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
+    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+    'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
+    'Accept-Encoding': 'none',
+    'Accept-Language': 'en-US,en;q=0.8',
+    'Connection': 'keep-alive',
+}
+
+SAVE_FOLDER = 'images'
+
+def main():
+    if not os.path.exists(SAVE_FOLDER):
+        os.mkdir(SAVE_FOLDER)
+    download_images()
+
+def download_images():
+    # ask for user input
+    data = input('What are you looking for? ')
+    n_images = int(input('How many images do you want? '))
+
+    print('Start searching...')
+
+    # get url query string
+    searchurl = GOOGLE_IMAGE + 'q=' + data
+    print(searchurl)
+
+    # request url, without usr_agent the permission gets denied
+    r = requests.get(searchurl, headers=usr_agent)
+    html = r.text
+
+    # find all divs where class='rg_meta'
+    soup = BeautifulSoup(html, 'html.parser')
+    results = soup.findAll('div', {'class': 'rg_meta'}, limit=n_images)
+
+    # extract the link from the div tag
+    imagelinks= []
+    for re in results:
+        text = re.text # this is a valid json string
+        text_dict= json.loads(text) # deserialize json to a Python dict
+        link = text_dict['ou']
+        # image_type = text_dict['ity']
+        imagelinks.append(link)
+
+    print(f'found {len(imagelinks)} images')
+    print('Start downloading...')
+
+    for i, imagelink in enumerate(imagelinks):
+        # open image link and save as file
+        r = requests.get(imagelink)
+
+        imagename = SAVE_FOLDER + '/' + data + str(i+1) + '.jpg'
+        with open(imagename, 'wb') as file:
+            file.write(r.content)
+
+    print('Done')
+
+
+if __name__ == '__main__':
+    main()