Am 21.05.19 um 14:27 schrieb Adriaan Renting:
Java was meant to be generic, run anywhere and abstract and hide
differences in its underlying infrastructure. This has led to the Java
VM, and also JDBC I guess.
Python was more of a script interpreted C-derivative, much closer to
the bare metal, and thus much less effort was made to hide and
abstract.
Python closer to the metal than Java? This is nonsense. It is exactly
the opposite. As a simple empirical proof, there are compilers which
compile Java to native code (gcj) with comparable performance than C
code, while such a thing is almost not doable for Python, only for
restricted subsets. Java code can be "manually compiled" into C++ code
with only a few tweaks, most notably you need a garbage collector, but
that's it - apart from a huge library, maybe.
Python code with dynamic typing cannot be statically compiled in the
same way, which you pay for by a factor of 100 in execution speed.
Christian
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