Initial commit

python_basics/foreach.py

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+# This is what a comment looks like
+fruits = ['apples', 'oranges', 'pears', 'bananas']
+for fruit in fruits:
+    print(fruit + ' for sale')
+
+fruitPrices = {'apples': 2.00, 'oranges': 1.50, 'pears': 1.75}
+for fruit, price in fruitPrices.items():
+    if price < 2.00:
+        print('%s cost %f a pound' % (fruit, price))
+    else:
+        print(fruit + ' are too expensive!')

python_basics/helloWorld.py

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+# Comment: This is a fairly simple Python script
+
+print('Hello, World!')

python_basics/listcomp.py

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+nums = [1, 2, 3, 4, 5, 6]
+oddNums = [x for x in nums if x % 2 == 1]
+print(oddNums)
+oddNumsPlusOne = [x + 1 for x in nums if x % 2 == 1]
+print(oddNumsPlusOne)

python_basics/listcomp2.py

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+strings = ['Some string', 'Art', 'Music', 'Artificial Intelligence']
+print([x.lower() for x in strings if len(x) > 5])

python_basics/quickSort.py

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+def quickSort(lst):
+    if len(lst) <= 1:
+        return lst
+    smaller = [x for x in lst[1:] if x < lst[0]]
+    larger = [x for x in lst[1:] if x >= lst[0]]
+    return quickSort(smaller) + [lst[0]] + quickSort(larger)
+
+
+# Main Function
+if __name__ == '__main__':
+    lst = [2, 4, 5, 1]
+    print(quickSort(lst))

python_basics/quicksort_try.py

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+def quicksort(arr):
+  pivot = arr[0]
+  for item in arr[1:]:
+    if item > pivot:
+      

python_basics/shop.py

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+class FruitShop:
+
+    def __init__(self, name, fruitPrices):
+        """
+            name: Name of the fruit shop
+            
+            fruitPrices: Dictionary with keys as fruit 
+            strings and prices for values e.g. 
+            {'apples':2.00, 'oranges': 1.50, 'pears': 1.75} 
+        """
+        self.fruitPrices = fruitPrices
+        self.name = name
+        print('Welcome to %s fruit shop' % (name))
+
+    def getCostPerPound(self, fruit):
+        """
+            fruit: Fruit string
+        Returns cost of 'fruit', assuming 'fruit'
+        is in our inventory or None otherwise
+        """
+        if fruit not in self.fruitPrices:
+            print("Sorry we don't have %s" % (fruit))
+            return None
+        return self.fruitPrices[fruit]
+
+    def getPriceOfOrder(self, orderList):
+        """
+            orderList: List of (fruit, numPounds) tuples
+            
+        Returns cost of orderList. If any of the fruit are  
+        """
+        totalCost = 0.0
+        for fruit, numPounds in orderList:
+            costPerPound = self.getCostPerPound(fruit)
+            if costPerPound != None:
+                totalCost += numPounds * costPerPound
+        return totalCost
+
+    def getName(self):
+        return self.name
+
+    def __str__(self):
+        return "<FruitShop: %s>" % self.getName()

python_basics/shopTest.py

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+import shop
+
+shopName = 'the Berkeley Bowl'
+fruitPrices = {'apples': 1.00, 'oranges': 1.50, 'pears': 1.75}
+berkeleyShop = shop.FruitShop(shopName, fruitPrices)
+applePrice = berkeleyShop.getCostPerPound('apples')
+print(applePrice)
+print('Apples cost $%.2f at %s.' % (applePrice, shopName))
+
+otherName = 'the Stanford Mall'
+otherFruitPrices = {'kiwis': 6.00, 'apples': 4.50, 'peaches': 8.75}
+otherFruitShop = shop.FruitShop(otherName, otherFruitPrices)
+otherPrice = otherFruitShop.getCostPerPound('apples')
+print(otherPrice)
+print('Apples cost $%.2f at %s.' % (otherPrice, otherName))
+print("My, that's expensive!")