update 3.0

Author: Quarkblue

Advanced Features/coreFeatures.py

@@ -0,0 +1,22 @@
+# Implementing Core features
+# Python beyonds the basics - Object oriented programming
+
+class SumList(object):
+    
+    def __init__(self,this_list):
+        self.myList = this_list
+        
+    def __add__(self,other):
+        
+        new_list = [ x + y for x,y in zip(self.myList, other.myList)]
+        
+        return SumList(new_list)
+    
+    def __repr__(self):
+        return str(self.myList)
+    
+    
+    
+    
+    
+    

Advanced Features/subClassingBuiltIns.py

@@ -0,0 +1,15 @@
+# SubClassing Built-In's
+# Python beyond the basics - object oriented programming
+
+"""
+Here we are inheriting from a built in class "dict"
+from which we can access all the properties of the dictionries
+in python and implement our own.
+as you can see in the given example below.
+"""
+
+class MyDict(dict):
+    
+    def __setitem__(self, key, value):
+        print("Setting a key and value")
+        dict.__setitem__(self, key, value)

Inheritance and Polymorphism/assignment1.py renamed to Assignments/assignment1.py

@@ -0,0 +1,34 @@
+import abc
+from datetime import datetime
+
+class WriteFile(metaclass = abc.ABCMeta):
+    
+    @abc.abstractmethod
+    def write(self):
+        return
+    
+    def __init__(self,filename):
+        self.filename = filename
+        
+    def write_line(self,text):
+        fh = open(self.filename, 'a')
+        fh.write(text + "\n")
+        fh.close()
+        
+        
+class DelimFile(WriteFile):
+    
+    def __init__(self,filename,delim):
+        super(DelimFile, self).__init__(filename)
+        self.delim = delim
+        
+    def write(self, this_list):
+        line = self.delim.join(this_list)
+        self.write_line(line)
+        
+class Logfile(WriteFile):
+    
+    def write(self,this_line):
+        dt = datetime.now()
+        date_str = dt.strtime('%Y-%m-%d %H:%M')
+        self.write_line('{0}    {1}'.format(date_str,this_line))

Assignments/assignment2.py

@@ -1,23 +1,34 @@
 #include <stdio.h>
-#include <string.h>
-#include <math.h>
-#include <stdlib.h>
 
-int main() {
-
-    const int n,q;
-    scanf("%d",&n);
-    char *names = (char*) malloc(n * 12 * sizeof(char));
-    char *qNames = (char*) malloc(q * 12 * sizeof(char));
+struct Distance {
+   int feet;
+   float inch;
+} d1, d2, result;
 
-    for(int i = 0; i <= n; i++){
-        gets(names);
-    }
-    for (int i = 0; i <= q; i++){
-        gets(qNames);
-    }
-
-    
+int main() {
+   // take first distance input
+   printf("Enter 1st distance\n");
+   printf("Enter feet: ");
+   scanf("%d", &d1.feet);
+   printf("Enter inch: ");
+   scanf("%f", &d1.inch);
+ 
+   // take second distance input
+   printf("\nEnter 2nd distance\n");
+   printf("Enter feet: ");
+   scanf("%d", &d2.feet);
+   printf("Enter inch: ");
+   scanf("%f", &d2.inch);
+   
+   // adding distances
+   result.feet = d1.feet + d2.feet;
+   result.inch = d1.inch + d2.inch;
 
-    return 0;
-}
+   // convert inches to feet if greater than 12
+   while (result.inch >= 12.0) {
+      result.inch = result.inch - 12.0;
+      ++result.feet;
+   }
+   printf("\nSum of distances = %d\'-%.1f\"", result.feet, result.inch);
+   return 0;
+}