在Python中，如何测试解释器是否正在运行Pyston，Jython，CPython？

问题描述：

如果解释器运行pyston，jython，ironpython，pypy等，我想从运行的Python程序中进行测试。在Python中，如何测试解释器是否正在运行Pyston，Jython，CPython？

想到的东西是模式匹配system.version并检查imp.get_magic()的幻数但这两个看起来有点虚弱和黑客。还有其他建议吗？

编辑： user2357112再次通过。

我试着在我安装的每个Python版本上运行以下代码，并且这区分了Jython，Pyston和各种CPythons。它出现在2.6之前的Python中，以及CPython的anaconda变种。对于蟒蛇来说，这可能是正确的。

这是程序和结果。请随意注意哪些其他类型的Python可以使用或不使用。

import platform 
print(platform.python_implementation())

和shell脚本：

for v in $(pyenv versions); do # not quite right 
    pyenv local $v 
    echo "version is $v" 
    python /tmp/foo.py 
    echo "===================" 
done

而且我得到了这样的输出：

=================== 
version is 2.1.3 
Traceback (most recent call last): 
    File "/tmp/foo.py", line 1, in ? 
    import platform 
ImportError: No module named platform 
=================== 
version is 2.2.3 
Traceback (most recent call last): 
    File "/tmp/foo.py", line 1, in ? 
    import platform 
ImportError: No module named platform 
=================== 
version is 2.3.7 
Traceback (most recent call last): 
    File "/tmp/foo.py", line 2, in ? 
    print(platform.python_implementation()) 
AttributeError: 'module' object has no attribute 'python_implementation' 
=================== 
version is 2.4.6 
Traceback (most recent call last): 
    File "/tmp/foo.py", line 2, in ? 
    print(platform.python_implementation()) 
AttributeError: 'module' object has no attribute 'python_implementation' 
=================== 
version is 2.5.6 
Traceback (most recent call last): 
    File "/tmp/foo.py", line 2, in <module> 
    print(platform.python_implementation()) 
AttributeError: 'module' object has no attribute 'python_implementation' 
=================== 
version is 2.6.9 
CPython 
=================== 
version is 2.7.12 
CPython 
=================== 
version is 2.7.13 
CPython 
=================== 
version is 2.7.8 
CPython 
=================== 
version is 3.0.1 
CPython 
=================== 
version is 3.1.5 
CPython 
=================== 
version is 3.2.6 
CPython 
=================== 
version is 3.3.5 
CPython 
=================== 
version is 3.3.6 
CPython 
=================== 
version is 3.4.2 
CPython 
=================== 
version is 3.5.0 
CPython 
=================== 
version is 3.5.1 
CPython 
=================== 
version is 3.5.2 
CPython 
=================== 
version is 3.6.0 
CPython 
=================== 
version is 3.6.0a4 
CPython 
=================== 
version is 3.6.0b2 
CPython 
=================== 
version is 3.6.1 
CPython 
=================== 
version is 3.6.2 
CPython 
=================== 
version is 3.7-dev 
CPython 
=================== 
version is anaconda2-4.1.1 
CPython 
=================== 
version is anaconda3-4.1.0 
CPython 
=================== 
version is jython-2.7.1b3 
Jython 
=================== 
version is pypy2-5.4.1 
PyPy 
=================== 
version is pypy2-5.6.0 
PyPy 
=================== 
version is pypy-2.6.1 
PyPy 
=================== 
version is pypy3-2.3.1 
PyPy 
=================== 
version is pypy3-2.4.0 
PyPy 
=================== 
version is pypy3.5-5.8.0 
PyPy 
=================== 
version is pypy-5.0.1 
PyPy 
=================== 
version is pypy-5.3.1 
PyPy 
=================== 
version is pyston-0.6.0 
Pyston 
=================== 
version is pyston-0.6.1 
Pyston 
===================

['platform.python_implementation（）']（https://docs.python.org/3/library/platform.html#platform.python_implementation）会给你一些有用的东西吗？ – user2357112

...或者'sys.subversion'→'（'Pyston'，''，''）' –

好极了！谢谢。添加这个答案，我会接受。我在我安装的每个Python版本上都试过了，这给了一些有意义的东西，除了PyPY和anaconda（与CPython）之外。 – rocky

答

正如user2357112提到的，你可以检查platform.python_implementation() == "Pyston"，你可以在source看到。

在Python中，如何测试解释器是否正在运行Pyston，Jython，CPython？

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