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‎python_class1/class1.py

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a = 10 #integer value: number
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print(a)
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b = 22.22 #float value: decimal
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print(type(a))
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print("float values is: ", b)
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print(type(b))
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boo1 = True # boolien value: True and false
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print("boolien values is:" , boo1)
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print(type(boo1))
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text= "hello"
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print("the string values is: " , text)
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print(type(text))
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# print(`the string values ${text}`)
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txt = "class start at 8 am \n end at 9 am" # \n or """ """ is a divided line(new line)
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print(txt)
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print(type(txt))

‎python_class2/class2.py

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str = "programiz"
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print("string is :", str)
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print("print :", str[3])
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print(str[1:5]) #slicing: slicing is a technique that allows you to retrieve specific parts, or "slices," of sequences such as strings, lists, tuples, or other iterable objects.
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print(str[5:-2])
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# print(str[10]) # error: out of charactor
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print(str)
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str = "python" # replace all values but not replace one character in string. bcz string is a immutable.
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print(str)
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# length methods
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txt1 = "python class starts at 7am"
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print(txt1)
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print(len(txt1))
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# enumerate() function : print data index number with string charactor on by one.
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txt2 = "python"
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txt3 = list(enumerate(txt2)) #print index number with character name.
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print("txt3:", txt3) # out put: txt3: [(0, 'p'), (1, 'y'), (2, 't'), (3, 'h'), (4, 'o'), (5, 'n')]
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#mutable: number, integer,float,
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#immutable: string,

‎python_class3/class3.py

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a= "python "
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b= "programiz"
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print(a+ b) #cancatination(+)
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#
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str1= "hello "
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str2 = "world!"
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print("str1 + str2= ", str1 + str2)
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str1 = "python is " #for spacing given one spaces {"values____(space) "}
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str2 = "programing language"
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print("str1 + str2=", str1 + str2)
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str1= "hello"
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str2 = "world!"
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print("str1 * 3 = " , str1 * 3) # (*asetric operator)
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text = "python" #for loops
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for char in text: #for and in is a reserved keyword(for loops), text is a variable and char is a data types.
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print(char),
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count=0
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for letter in "hello world":
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print(letter)
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if(letter=="l"):
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count+=1
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print("number of letter l is:", count)
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count=0
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for char in "chandan":
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if(char=="n"):
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count+=1
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print("n" ,count)
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num = [1,4,9,16,25,36,49,]
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for list in num:
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print(list)
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# for i in range(1, 100): # Range function (start, stop, step)
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# print(i)
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n= 5
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for i in range(n+1):
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print(i)

‎python_class4/class4.py

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institute="besent technology"
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for char in institute:
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print("institute name character wise: ", char)
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# if(char =="S"):
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# count+=1
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# print("number of letter t is:", count)
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text= "python"
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print("p" in text)
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print("law" in text)
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print("hon" in text)
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text = "HELLO,WORLD" # for method lower case (text.lower())
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result= text.lower()
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print("ther result is:" , result)
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text = "hello world" #for upper case (.upper)
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result= text.upper()
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print("the result is:" , result)
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text = "hello world"
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result= text.replace("hello", "hi") #replace methods(.replace)
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print("change letter hello:", result)
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result= text.replace("o", "m")
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print("change letter o:", result)
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text= "hello world" # find methods(.find())
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result= text.find("w")
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print("find char w is:", result)
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text= "this is a python class" #split methods (.splite())
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result= text.split()
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print(result)

‎python_class5/class5.py

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kala=[1,2,3,4,6,5,7,8,4]
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print(kala)
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print(2 in kala)

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