Repository files navigation

// file: hello.cpyprintf("Hello World!\n");$cpyhelloHelloWorld!$

// file: stdin.cpyprint"input 'q' to quit:";while(true){printf("> ");line=stdin.readline();line=line.strip().lower();if(line=='q'){print"bye.";break;}else{print'your input:',repr(line);}}

classA{publica=0;publicstatics=1;functioninit(a){this.a=a;print'A init',a;}functionf(a,b=1){returna+b;}}printA.s;// 1a=newA(1);// A init 1printa.f(1,2);// 3

importtime;// Python's built-in time moduletime.sleep(1);

Python’s syntax is said to be clear and elegant. It is good for small piece of codes, but not good for more than 100 lines of codes. I usually mis-understand the number of indents when first glance at a more than 10 lines block of codes after an if.

And TAB vs SPACE is particularly annoying!

The curly braces are quit clear and elegant, most people feel comfortable at curly braces.

i++ is very usefull.

Python requires you to put an unnecessary “self” as the first argument of a function definition in a class, but to omit it when invoking that function. What’s the meaning of that? It’s total garbage.

Couldn’t it be as simple as “parent.f()”? Why multi-inheritance?

The lambda body can only be a single expression – useless! Ah-ha, now you are regret for discriminating curly braces, aren’t you? Look at the really ELEGANT syntax of JavaScript’s anonymous function.

Just let those be: null, true, false. “i is None” is no more elegant than “i == null”.

Non-primative default arguments in function definitions are implicitly static, that cause many hidden bugs by mistake.

Cpy is a C-like scripting language. Cpy codes are converted into python code first, then run by Python at the same time.

Relax and enjoy!