Added outline for price_scraper classes

quad_parts/price_scraper.py

@@ -0,0 +1,25 @@
+from lxml.etree import etree
+class __price_scraper__:
+    def __init__(self,url,page_source):
+        self.url = url
+        self.page_source = page_source
+        self.etree = etree.fromstring(self.page_source)
+
+    def scrape(self):
+        scrape_for = ['price','name']
+        if self.in_stock():
+            for cat in scrape_for:
+                self.__setattr__(cat,eval_xpath(cat))
+
+    def eval_xpath(name):
+        return self.etree.xpath(self.xpaths[name])
+
+    def __get_stock__(self):
+        return self.eval_xpath('in_stock')
+
+def amazon_scraper(__price_scraper__):
+    xpaths = {
+    }
+    def in_stock(self):
+        stock_val = self.__get_stock__()
+        return stock_val != 'poop'