The presentation on Python programming covers essential data structures such as lists, dictionaries, sets, and tuples. It explains their properties, methods, and provides examples of how to manipulate them. The document serves as an introduction to using these structures in Python for various programming tasks.

1. DEPARTMENT
OF
ELECTRONICS & COMMUNICATION ENGINEERING
Presentation on
PYTHON PROGRAMMING
PRESENTED BY
Hitha C (1AH21EC020)
Dept. of ECE
UNDER THE GUIDANCE OF :
Mr. PRAVEEN A PATIL
Asst. Professor, Dept. of ECE
ACSCE, Bangalore.
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2. Lists
• Lists are used to store multiple items in a single variable.
• List items are ordered, changeable, and allow duplicate values.
• An ordered group of items
• List notation
A = [1,”This is a list”, c, Donkey(“kong”)]
• List items are indexed, the first item has index [0], the second item has index [1]
etc.
• Eg.
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3. Lists Methods
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4. List Programming Tools
• Filter(function, sequence)
• Returns a sequence consisting of the items from the sequence for which
function(item) is true
• Computes primes up to 25
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5. Map Function
• Map(function, sequence)
• Calls function(item) for each of the sequence’s items
• Computes the cube for the range of 1 to 11
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6. Reduce Function
• Reduce(function, sequence)
• Returns a single value constructed by calling the binary function (function)
• Computes the sum of the numbers 1 to 10
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7. The del statement
• A specific index or range can be deleted
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8. Dictionary
• Dictionaries are used to store data values in key:value pairs.
• A dictionary is a collection which is ordered*, changeable and do not allow
duplicates.
• Dictionaries are written with curly brackets, and have keys and values.
• Eg.
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9. Dictionaries
• Indexed by keys
• This can be any immutable type (strings, numbers…)
• Tuples can be used if they contain only immutable objects
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10. Dictionary Methods
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11. Sets
• Sets are used to store multiple items in a single variable.
• A set is a collection which is unordered, unchangeable*, and unindexed.
• Sets are written with curly brackets.
• An unordered collection with no duplicate elements
• Basket = [‘apple’, ‘orange’, ‘apple’, ‘pear’]
• Fruit
Set([‘orange’, ‘apple’, ‘pear’])
• Eg.
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12. Sets
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13. Tuple
• Tuples are used to store multiple items in a single variable.
• Tuple items are ordered, unchangeable, and allow duplicate values.
• Tuple items are indexed, the first item has index [0], the second item has index [1] etc.
• A tuple is a collection which is ordered and unchangeable.
• Tuples are written with round brackets.
• Eg.
Tuple Methods
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14. Tuples
– A number of values separated by commas
– Immutable
• Cannot assign values to individual items of a tuple
• However tuples can contain mutable objects such as lists
– Single items must be defined using a comma
• Singleton = ‘hello’,
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15. THANK YOU
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