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diff --git a/Chap15ProjMulitXKCDdownload.py b/Chap15ProjMulitXKCDdownload.py
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+++ b/Chap15ProjMulitXKCDdownload.py
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+#! /usr/bin/env python3
+
+# Chapter 15 Project Multithreaded XKCD Downloader
+
+import threading
+import os
+import bs4
+import requests
+
+os.makedirs('xkcd', exist_ok=True)
+
+def downloadXkcd(startComic, endComic):
+    for urlNumber in range(startComic, endComic):
+        print('Downloading page http://xkcd.com/%s...' % (urlNumber))
+        res = requests.get('http://xkcd.com/%s' % (urlNumber))
+        res.raise_for_status()
+
+        soup = bs4.BeautifulSoup(res.text)
+
+        comicElem = soup.select('#comic img')
+        if comicElem == []:
+            print('Could not find comic image.')
+        else:
+            comicUrl = comicElem[0].get('src')
+            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.inter_content(100000):
+                imageFile.write(chunk)
+            imageFile.close()
+
+downloadThreads = []
+for i in range(0, 1400, 100):
+    downloadThread = threading.Thread(target=downloadXkcd, args=(i, i +90))
+    downloadThreads.append(downloadThread)
+    downloadThread.start()
+
+for downloadThread in downloadThreads:
+    downloadThread.join()
+print('Done.')