why should you learn to write programsprint('hello world!'and we have even written our first syntactically correct python sentence our sentence starts with the function print followed by string of text of our choosing enclosed in single quotes the strings in the print statements are enclosed in quotes single quotes and double quotes do the same thingmost people use single quotes except in cases like this where single quote (which is also an apostropheappears in the string conversing with python now that we have word and simple sentence that we know in pythonwe need to know how to start conversation with python to test our new language skills before you can converse with pythonyou must first install the python software on your computer and learn how to start python on your computer that is too much detail for this so suggest that you consult www py com where have detailed instructions and screencasts of setting up and starting python on macintosh and windows systems at some pointyou will be in terminal or command window and you will type python and the python interpreter will start executing in interactive mode and appear somewhat as followspython ( : cee dec : : [msc bit (amd )on win type "help""copyright""creditsor "licensefor more information the prompt is the python interpreter' way of asking you"what do you want me to do next?python is ready to have conversation with you all you have to know is how to speak the python language let' say for example that you did not know even the simplest python language words or sentences you might want to use the standard line that astronauts use when they land on faraway planet and try to speak with the inhabitants of the planeti come in peaceplease take me to your leader file ""line come in peaceplease take me to your leader syntaxerrorinvalid syntax this is not going so well unless you think of something quicklythe inhabitants of the planet are likely to stab you with their spearsput you on spitroast you over fireand eat you for dinner luckily you brought copy of this book on your travelsand you thumb to this very page and try again