Data commit

Task/Hash-from-two-arrays/Python/hash-from-two-arrays-1.py

@@ -0,0 +1,3 @@
+keys = ['a', 'b', 'c']
+values = [1, 2, 3]
+hash = {key: value for key, value in zip(keys, values)}

Task/Hash-from-two-arrays/Python/hash-from-two-arrays-2.py

@@ -0,0 +1,7 @@
+keys = ['a', 'b', 'c']
+values = [1, 2, 3]
+hash = dict(zip(keys, values))
+
+# Lazily, Python 2.3+, not 3.x:
+from itertools import izip
+hash = dict(izip(keys, values))

Task/Hash-from-two-arrays/Python/hash-from-two-arrays-3.py

@@ -0,0 +1,5 @@
+keys = ['a', 'b', 'c']
+values = [1, 2, 3]
+hash = {}
+for k,v in zip(keys, values):
+    hash[k] = v

Task/Hash-from-two-arrays/Python/hash-from-two-arrays-4.py

@@ -0,0 +1,41 @@
+>>> class Hashable(object):
+	def __hash__(self):
+		return id(self) ^ 0xBEEF
+
+	
+>>> my_inst = Hashable()
+>>> my_int = 1
+>>> my_complex = 0 + 1j
+>>> my_float = 1.2
+>>> my_string = "Spam"
+>>> my_bool = True
+>>> my_unicode = u'Ham'
+>>> my_list = ['a', 7]
+>>> my_tuple = ( 0.0, 1.4 )
+>>> my_set = set(my_list)
+>>> def my_func():
+	pass
+
+>>> class my_class(object):
+	pass
+
+>>> keys = [my_inst, my_tuple, my_int, my_complex, my_float, my_string,
+	my_bool, my_unicode, frozenset(my_set), tuple(my_list),
+	my_func, my_class]
+>>> values = range(12)
+>>> d = dict(zip(keys, values))
+>>> for key, value in d.items(): print key, ":", value
+
+1 : 6
+1j : 3
+Ham : 7
+Spam : 5
+(0.0, 1.3999999999999999) : 1
+frozenset(['a', 7]) : 8
+1.2 : 4
+('a', 7) : 9
+<function my_func at 0x0128E7B0> : 10
+<class '__main__.my_class'> : 11
+<__main__.Hashable object at 0x012AFC50> : 0
+>>> # Notice that the key "True" disappeared, and its value got associated with the key "1"
+>>> # This is because 1 == True in Python, and dictionaries cannot have two equal keys