Download to read offline
![2) String :
String is a collection of characters.
uses single quote(‘…’), double quote (“….”)or triple quote
(”””…..”””)to define a string.
We can use three operators along with the string is slicing
operator[] or[:],concatenate operator(+), repetition operator *.
ex. >>> strl="My"
>>> str2="Python“
>>> print (str2[0]) #slicing operator
output: P
>>> print (str2)
>>>Python
>>> print (strl+str2) # concatenate operator
output: MyPython
>>> print (str2*3) # repetition operator
output: PythonPythonPython
‘”””Python””””](/p?url=https%3A%2F%2Fimage.slidesharecdn.com%2Funit1introductiontopython-240108125126-c5fed96a%2F85%2Funit-1-INTRODUCTION-TO-PYTHON-course-pptx-39-320.jpg&__src=https%3A%2F%2Fwww.slideshare.net%2Fslideshow%2Funit-1introduction-to-python-coursepptx%2F265224452&__type=image)
![3) List :
similar to array in C or C++ but it can simultaneously
hold different types of data in list.
It is basically an ordered sequence of some data
written using square brackets([]) and commas(,).
Ex. -
>>> #List of only strings
>>> b=["Sun", "Mon”, “Tue", "Wed“]
>>> print (b)
output: ['Sun', 'Mon', 'Tue', 'Wed']
Like string Same
operators use in list-
slicing operator[] or [:],
concatenate
operator(+), repetition
operator(*)](/p?url=https%3A%2F%2Fimage.slidesharecdn.com%2Funit1introductiontopython-240108125126-c5fed96a%2F85%2Funit-1-INTRODUCTION-TO-PYTHON-course-pptx-40-320.jpg&__src=https%3A%2F%2Fwww.slideshare.net%2Fslideshow%2Funit-1introduction-to-python-coursepptx%2F265224452&__type=image)
![4) Tuple :
collection of elements and it is similar to the List.
But the items of the tuple are separated by comma(,)
and the elements are enclosed in ( ) parenthesis.
Tuples are immutable.(can not change value)
Ex.->>> #Tuple of both integers and strings
>>> b=(“one”,1, 2, "two", "three", 3)
>>> print (b)
output: ('one', 1, 2, ‘two', 'three',3)
>>> print (b[3]) # slicing operator
output: two
Like string Same
operators use in list-
slicing operator[] or [:],
concatenate
operator(+), repetition
operator(*)](/p?url=https%3A%2F%2Fimage.slidesharecdn.com%2Funit1introductiontopython-240108125126-c5fed96a%2F85%2Funit-1-INTRODUCTION-TO-PYTHON-course-pptx-41-320.jpg&__src=https%3A%2F%2Fwww.slideshare.net%2Fslideshow%2Funit-1introduction-to-python-coursepptx%2F265224452&__type=image)
![5) Dictionary
collection of elements in the form of key:value pair.
for example-{1:’Red’, 2:’black’}
dictionaries are like a hash-table that has pair of
index(key) and element(value).
present in the curly brackets.
Ex. – dict={1:’red’,2:’blue’,3:’green’}
>>>print(dict)
output:{1:’red’,2:’blue’,3:’green’}
>>>print(dict.keys())
output: dict_keys([1,2,3])
>>>print(dict.values())
output: dict_values([red,blue,green])](/p?url=https%3A%2F%2Fimage.slidesharecdn.com%2Funit1introductiontopython-240108125126-c5fed96a%2F85%2Funit-1-INTRODUCTION-TO-PYTHON-course-pptx-42-320.jpg&__src=https%3A%2F%2Fwww.slideshare.net%2Fslideshow%2Funit-1introduction-to-python-coursepptx%2F265224452&__type=image)
Uploaded byusvirat1805
PPTX, PDF528 views
unit (1)INTRODUCTION TO PYTHON course.pptx
This document provides an introduction to the Python programming language. It discusses what Python is, its history and features. It describes common uses of Python in industries like CIA, Google, Facebook, NASA. It also covers Python building blocks like identifiers, variables, keywords. Additionally, it explains Python data types like numeric, strings, lists, tuples and dictionaries. Finally, it discusses taking input in Python and type casting.
