poriting to noat.cards

solutions/system_design/pastebin/pastebin.py

@@ -3,44 +3,44 @@
 from mrjob.job import MRJob
 
 
-class HitCounts(MRJob):
+class HitCounts(MRJob) :
 
-    def extract_url(self, line):
+    def extract_url(self, line) :
         """Extract the generated url from the log line."""
         pass
 
-    def extract_year_month(self, line):
+    def extract_year_month(self, line) :
         """Return the year and month portions of the timestamp."""
         pass
 
-    def mapper(self, _, line):
+    def mapper(self, _, line) :
         """Parse each log line, extract and transform relevant lines.
 
         Emit key value pairs of the form:
 
-        (2016-01, url0), 1
-        (2016-01, url0), 1
-        (2016-01, url1), 1
+        (2016-01, url0) , 1
+        (2016-01, url0) , 1
+        (2016-01, url1) , 1
         """
-        url = self.extract_url(line)
-        period = self.extract_year_month(line)
-        yield (period, url), 1
+        url = self.extract_url(line) 
+        period = self.extract_year_month(line) 
+        yield (period, url) , 1
 
-    def reducer(self, key, values):
+    def reducer(self, key, values) :
         """Sum values for each key.
 
-        (2016-01, url0), 2
-        (2016-01, url1), 1
+        (2016-01, url0) , 2
+        (2016-01, url1) , 1
         """
-        yield key, sum(values)
+        yield key, sum(values) 
 
-    def steps(self):
+    def steps(self) :
         """Run the map and reduce steps."""
         return [
             self.mr(mapper=self.mapper,
-                    reducer=self.reducer)
+                    reducer=self.reducer) 
         ]
 
 
 if __name__ == '__main__':
-    HitCounts.run()
+    HitCounts.run()