Merge pull request #27 from Rob-Rychs/master

[FEATURE] add snippets has_duplicates all_unique keys_only values_only

snippets/all_unique.md

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+### all_unique
+
+Checks a flat list for all unique values. Returns True if list values are all unique and False if list values aren't all unique.
+
+This function compares the length of the list with length of the set() of the list. set() removes duplicate values from the list.
+
+``` python
+def all_unique(lst):
+    return len(lst) == len(set(lst))
+```
+
+``` python
+x = [1,2,3,4,5,6]
+y = [1,2,2,3,4,5]
+all_unique(x) # True
+all_unique(y) # False
+```

snippets/has_duplicates.md

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+### has_duplicates
+
+Checks a flat list for duplicate values. Returns True if duplicate values exist and False if values are all unique.
+
+This function compares the length of the list with length of the set() of the list. set() removes duplicate values from the list.
+
+``` python
+def has_duplicates(lst):
+    return len(lst) != len(set(lst))
+```
+
+``` python
+x = [1,2,3,4,5,5]
+y = [1,2,3,4,5]
+has_duplicates(x) # True
+has_duplicates(y) # False
+```

snippets/keys_only.md

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+### keys_only
+
+Function which accepts a dictionary of key value pairs and returns a new flat list of only the keys.
+
+Uses the .items() function with a for loop on the dictionary to track both the key and value and returns a new list by appending the keys to it. Best used on 1 level-deep key:value pair dictionaries (a flat dictionary) and not nested data-structures which are also commonly used with dictionaries. (a flat dictionary resembles a json and a flat list an array for javascript people).
+
+``` python
+def keys_only(flat_dict):
+    lst = []
+    for k, v in flat_dict.items():
+        lst.append(k)
+    return lst
+```
+
+``` python
+ages = {
+     "Peter": 10,
+     "Isabel": 11,
+     "Anna": 9,
+}
+keys_only(ages) # ['Peter', 'Isabel', 'Anna']
+```

snippets/values_only.md

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+### values_only
+
+Function which accepts a dictionary of key value pairs and returns a new flat list of only the values.
+
+Uses the .items() function with a for loop on the dictionary to track both the key and value of the iteration and returns a new list by appending the values to it. Best used on 1 level-deep key:value pair dictionaries and not nested data-structures.
+
+``` python
+def values_only(dict):
+    lst = []
+    for k, v in dict.items():
+        lst.append(v)
+    return lst
+```
+
+``` python
+ages = {
+     "Peter": 10,
+     "Isabel": 11,
+     "Anna": 9,
+}
+values_only(ages) # [10, 11, 9]
+```

test/all_unique/all_unique.py

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+def all_unique(lst):
+    return len(lst) == len(set(lst))

test/all_unique/all_unique.test.py

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+import types,functools
+from pytape import test
+from all_unique import all_unique
+def all_unique(t):
+    t.true(isinstance(all_unique, (types.BuiltinFunctionType, types.FunctionType, functools.partial)),'all_unique is a function')
+test('Testing all_unique',all_unique_test)

test/has_duplicates/has_duplicates.py

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+def has_duplicates(lst):
+    return len(lst) != len(set(lst))

test/has_duplicates/has_duplicates.test.py

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+import types,functools
+from pytape import test
+from has_duplicates import has_duplicates
+def has_duplicates(t):
+    t.true(isinstance(has_duplicates, (types.BuiltinFunctionType, types.FunctionType, functools.partial)),'has_duplicates is a function')
+test('Testing has_duplicates',has_duplicates_test)

test/keys_only/keys_only.py

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+def keys_only(dict):
+    lst = []
+    for k, v in dict.items():
+        lst.append(k)
+    return lst

test/keys_only/keys_only.test.py

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+import types,functools
+from pytape import test
+from keys_only import keys_only
+def keys_only_test(t):
+    t.true(isinstance(keys_only, (types.BuiltinFunctionType, types.FunctionType, functools.partial)),'keys_only is a function')
+test('Testing keys_only',keys_only_test)

test/values_only/values_only.py

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+def values_only(dict):
+    lst = []
+    for k, v in dict.items():
+        lst.append(v)
+    return lst

test/values_only/values_only.test.py

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+import types,functools
+from pytape import test
+from values_only import values_only
+def values_only_test(t):
+    t.true(isinstance(values_only, (types.BuiltinFunctionType, types.FunctionType, functools.partial)),'values_only is a function')
+test('Testing values_only',values_only_test)