Chapter 11

Author: dlujHub

C11_download_all_XKCD_comics.py

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+# Downloads every single XKCD comic.
+
+import os
+import requests
+import bs4
+
+url = 'http://xkcd.com'  # Starting url
+os.makedirs('xkcd', exist_ok=True)  # Store comics in ./xkcd
+
+while not url.endswith('#'):
+    # Download the page
+    print('Downloading page %s...' % url)
+    res = requests.get(url)
+    res.raise_for_status()
+
+    soup = bs4.BeautifulSoup(res.text, "html.parser")
+    comicElem = soup.select('#comic img')
+    if not comicElem:
+        print('Could not find the comic image.')
+    else:
+        comicUrl = 'http:' + comicElem[0].get('src')
+        # Download the image
+        print('Downloading image %s...' % comicUrl)
+        res = requests.get(comicUrl)
+        res.raise_for_status()
+        imageFile = open(os.path.join('xkcd', os.path.basename(comicUrl)), 'wb')
+        for chunk in res.iter_content(100000):
+            imageFile.write(chunk)
+        imageFile.close()
+
+    # Get the Prev button's url.
+    prevLink = soup.select('a[rel="prev"]')[0]
+    url = 'http://xkcd.com' + prevLink.get('href')
+
+print('Done.')

C11_feeling_lucky.py

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+#! python3
+# Opens several Google search results.
+
+import requests
+import webbrowser
+import bs4
+import sys
+
+print('Googling...')
+res = requests.get('http://google.com/search?q=' + ' '.join(sys.argv[1:]))
+
+res.raise_for_status()
+
+# Retrieve top search result links.
+soup = bs4.BeautifulSoup(res.text, "html.parser")
+
+# Open a browser tab for each result.
+linkElems = soup.select('.r a')
+numOpen = min(5, len(linkElems))
+for i in range(numOpen):
+    webbrowser.open('http://google.com' + linkElems[i].get('href'))

C11_maplt.py

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+#! python3
+# mapIt.py - Launches a map in the browser using an address from the
+# command line or clipboard.
+
+import webbrowser
+import sys
+import pyperclip
+
+if len(sys.argv) > 1:
+    # Get address from command line.
+    address = ' '.join(sys.argv[1:])
+else:
+    # Get address from clipboard.
+    address = pyperclip.paste()
+
+webbrowser.open('https://www.google.com/maps/place/' + address)
+