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Commitb025f61

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2024/03/14 - Adding variable and data type demo python code
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‎concepts/DataTypeDemo.py

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# This file gives demo about different data types
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# Numeric data type
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# Int, Float, Complex data type
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def_numeric_data_type_demo()->None:
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print("Inside _numeric_data_type_demo")
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a=10
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b=10.5
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c=1+2.3j
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print("Data type of a ",type(a)," and valud of a ",a)
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print("Data type of b ",type(b)," and valud of b ",b)
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print("Data type of c ",type(c)," and valud of c ",c)
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print("c.real ",c.real," c.imag",c.imag)
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print("Adding 1 to c.real and adding 2 to imag part of c")
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c=c.__add__(1+2j)
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print("Value of c post changes ",c)
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print("**"*25)
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_numeric_data_type_demo()
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# Sequence data type
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# String, List, tuple type
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def_string_data_type_demo()->None:
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print("Inside _string_data_type_demo")
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_my_str='Hello'
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_my_str1=" World"
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_my_str2="""!!!"""
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# concat strings
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_final_str=_my_str+_my_str1+_my_str2
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print("Final string ",_final_str)
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# slice operation, here string index will start from 0 and traverse till 5-1 index position i.e. 4
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print("_final_str[0:5] ",_final_str[0:5])
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# to reverse string
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print("Reverse string ",_final_str[::-1])
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# update string at specific position
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# strings are immutable hence they can modify using below way only
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_new_str="RM"
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print("Before update char at 2nd position : ",_new_str," and id : ",id(_new_str))
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_new_str=_new_str[0:1]+"A"+_new_str[-1]
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print("Post update char at 2nd position : ",_new_str," and id : ",id(_new_str))
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# Repetition factor
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print("**"*25)
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_string_data_type_demo()
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def_list_data_type_demo()->None:
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print("Inside _list_data_type_demo")
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_my_list= [1,"Rohit",2,"Pooja"]
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print("List : ",_my_list)
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# slice operation
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print("List slice [0:2] : ",_my_list[:2])
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# to reverse list
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print("Reverse list ",_my_list[::-1])
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# concat with another list
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print("Another List : ", [3,"Ram"])
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_my_list=_my_list+ [3,"Ram"]
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print("Concat List : ",_my_list)
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# add element at specific position
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_my_list.insert(2,4)
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print("Inserting element 4 at 2nd position ",_my_list)
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# removing element from specific position
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_my_list.pop(2)
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print("Removing element from 2nd position ",_my_list)
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print("**"*25)
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_list_data_type_demo()
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def_tuple_data_type_demo()->None:
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print("Inside _tuple_data_type_demo")
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_my_tuple= (1,"Rohit",31,25000)
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print("_my_tuple : ",_my_tuple)
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# slice
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print("Tuple slice [0:2] : ",_my_tuple[:2])
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# get element at 3rd position
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print("get element at 4th position : ",_my_tuple[3])
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# iterate through tuple
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print("Iterate through tuple")
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foriin_my_tuple:
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print(i)
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print("**"*25)
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_tuple_data_type_demo()
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def_dictionary_data_type_demo()->None:
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_my_map= {1:"Rohit",2:"Pooja",5:"Virat"}
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print("_my_map",_my_map)
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print("Get value of key 5 : ",_my_map[5])
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print("Get all keys : ",_my_map.keys())
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print("Get all values : ",_my_map.values())
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# check if key is present or not
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print("Check key 3 present or not : ",_my_map.__contains__(3))
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_my_map.pop(2)
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print("Post Removal of key 2 : ",_my_map)
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_my_map.update({1:"Pooja"})
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print("Post updating value of key 1 : ",_my_map)
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print("**"*25)
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_dictionary_data_type_demo()
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def_set_data_type_demo()->None:
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set1= {1,1,"Rohit"}
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print("set1 ",set1)
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print("**"*25)
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_set_data_type_demo()

‎concepts/VariableDemo.py

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# This file gives demo about different types of variables
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# and there usages
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print("Welcome to python demo!!!")
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# local variable
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def_local_variable_demo()->None:
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print("Inside _local_variable_demo")
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x=10
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print("Value of x ",x)
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returnNone
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_local_variable_demo()
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name="Rohit"
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# global variable
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def_global_variable_demo()->None:
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print("Inside _global_variable_demo")
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globalname
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name+=" Phadtare"
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print("Value of name ",name)
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returnNone
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_global_variable_demo()
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# non local variable
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def_non_local_variable_demo()->None:
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print("Inside _non_local_variable_demo")
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num=10
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print("value of nonlocal variable before calling _inside_func ",num)
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def_inside_func()->None:
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num1=20
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nonlocalnum
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num+=num1
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_inside_func()
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print("value of nonlocal variable post execution of _inside_func ",num)
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_non_local_variable_demo()
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# Object Identity demo
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a=50
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b=a
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print("ID of a ",id(a))
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print("ID of b ",id(b))
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a=100
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print("ID of a after assigning new value ",id(a))
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