python

  Sequence of Instructions Program A program is a sequence of instructions given to a computer. Defining a Variable A variable gets created when you assign a value to it for the first time. Code 1 age = 10 PYTHON Printing Value in a Variable Code 1 2 age = 10 print ( age ) PYTHON Output 10 Code 1 2 age = 10 print ( "age" ) PYTHON Output age Variable name enclosed in quotes will print variable rather than the value in it. If you intend to print value, do not enclose the variable in quotes. Order of Instructions Python executes the code line-by-line. Code 1 2 print ( age ) age = 10 PYTHON Output NameError: name 'age' is not defined Variable age is not created by the time we tried to print. Spacing in Python Having spaces at the beginning of line causes errors. Code 1 2 3 a = 10 * 5 b = 5 * 0.5 b = a + b PYTHON Output File "main.py", line 3 b = a + b ^ IndentationError: unexpected indent Variable Assignment Values in the variables...