In the early days of C, you’d occasionally see someone — probably a former Pascal programmer — write something like this: #define BEGIN { #define END } This would usually initiate complaints about ...

In the following example, we loop through a list of numbers, and use the variable digit to hold each number in turn: Strings in Python are considered “sequences” — they can be iterated over, and the ...

しかし、Pythonのforループ変数は関数スコープ（またはグローバルスコープ）に残り続けます。 大規模なコードで、ループの外でたまたま同じ変数名 i を使おうとすると、意図しない値が入り込んでいてバグを引き起こすことがあります。

Interested in learning Python but don't know where to start? I'll walk you through the basics of the ever-popular programming language step-by-step. In an hour or so, you'll go from zero to writing ...