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python variables

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	`1`	`+"""`
	`2`	`+In python , variables are dynamically typed.`
	`3`	`+It means their data type is determined at runtime.`
	`4`	`+No need to specify their datatype like we do in c++ e.g. int x;`
	`5`	`+"""`
	`6`	`+`
	`7`	`+n = 0`
	`8`	`+print('n =', n)`
	`9`	`+# n = 0`
	`10`	`+`
	`11`	`+n = "abc"`
	`12`	`+print('n =', n)`
	`13`	`+# n = abc`
	`14`	`+`
	`15`	`+# Multiple assignments`
	`16`	`+n, m = 0, "abc"`
	`17`	`+n, m, z = 0.125, "abc", False`
	`18`	`+`
	`19`	`+# Increment`
	`20`	`+n = n + 1 # good`
	`21`	`+n += 1 # good`
	`22`	`+# n++ # bad; there is no such operator in python`
	`23`	`+`
	`24`	`+# None is null (absence of value)`
	`25`	`+n = 4`
	`26`	`+n = None`
	`27`	`+print("n =", n)`
	`28`	`+# n = None`

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