72 lines
1.3 KiB
Markdown
72 lines
1.3 KiB
Markdown
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---
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categories:
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- Programming Languages
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tags: [python, data-structures]
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---
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# Tuples in Python
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Tuples are one of the main data-structures or containers in Python.
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Tuples have the following properties:
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- They are **ordered**
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- They have a **fixed size**
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- They are **immutable** and cannot be modified
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- **Allow duplicate** members
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- They are **indexed**
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```python
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tup1 = (1, 3, 5, 7)
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print('tup1[0]:\t', tup1[0])
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print('tup1[1]:\t', tup1[1])
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print('tup1[2]:\t', tup1[2])
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print('tup1[3]:\t', tup1[3])
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"""
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tup1[0]: 1
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tup1[1]: 3
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tup1[2]: 5
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tup1[3]: 7
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"""
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# Slicing
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print('tup1[1:3]:\t', tup1[1:3])
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print('tup1[:3]:\t', tup1[:3])
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print('tup1[1:]:\t', tup1[1:])
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print('tup1[::-1]:\t', tup1[::-1])
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"""
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tup1[1:3]: (3, 5)
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tup1[:3]: (1, 3, 5)
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tup1[1:]: (3, 5, 7)
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tup1[::-1]: (7, 5, 3, 1)
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"""
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print('len(tup1):\t', len(tup1))
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# len(tup1): 4
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tup2 = (1, 'John', True, -23.45)
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print(tup2)
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# (1, 'John', True, -23.45)
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tup3 = ('apple', 'pear', 'orange', 'plum', 'apple')
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for x in tup3:
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print(x)
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print(tup3.count('apple'))
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print(tup3.index('pear'))
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if 'orange' in tup3:
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print('orange is in the Tuple')
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tuple1 = (1, 3, 5, 7)
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tuple2 = ('John', 'Denise', 'Phoebe', 'Adam')
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tuple3 = (42, tuple1, tuple2, 5.5)
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print(tuple3)
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```
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