fireattack added the comment:
I've searched and found some related issue, but none is specific for this.
For example, Segev Finer mentioned that "[..] "#!/usr/bin/python" which will
prefer Python 2" in issue 34274 but didn't mention why it would/should.
--
New submission from fireattack :
STR
1. Install both Py2 and 3.
2. Make sure Py3 is the default.
3. (Optional) Make sure only Python3 is in path, not Python2.
Run the following script from CMD:
```
#!/usr/bin/python
import platform
print(platform.python_version())
```
What expected: