This post is a deep-dive into a game-theoretic security flaw in Bancor, a high-profile smart contract on the Ethereum blockchain. The full… (more…)

The Python Programming language has been around for quite a while. Development work was started on the first version by Guido Van Rossum in 1989 and it has since grown to become one of the more popular languages that has been used in applications ranging... (more…)

In this post I'll show how to write a rudimentary, native x86-64 just-in-time compiler (JIT) in CPython, using only the built-in modules. (more…)

A few minutes ago a friend sent me the following code, and told me its misbehaving: def foo(l=[]): l.append("hello!") print(l) foo() foo() Instead of printing ["hello"] twice, it printed ["hello", "hello"]. Any ideas why? what's going on? I'll... (more…)

Vasudev Ram's blog on software innovation, open-source and proprietary, worldwide. Python, D, Go, FreePascal, Unix, databases, open source.