我如何知道我使用的是哪种python实现？

Question

Python有几种不同的实现: CPython、Jython、PyPy等等。我想通过编程的方式来确定我的代码运行在哪个实现上。我该怎么做呢？

具体地说，请为我编写一个名为get_implementation_name()的函数：

impl_name = get_implementation_name()
if impl_name == "CPython":
  print "I can abuse CPython implementation details. (I'm a bad, bad man.)"
elif impl_name == "PyPy":
  print "Can't count on reference-counting garbage collection here..."
else:
  print "I better be careful..."

Answer 1

In [50]: import platform    
In [52]: platform.python_implementation()
Out[52]: 'CPython'

Answer 2

platform怎么样？

它能给你

platform.python_implementation()