[Tutor] "#!/usr/bin/env python" vs "#!/usr/local/bin/python"

[Rolando Pereira]

Senthil_OR at Dell.com escreveu:
> Okay, I guess, people are missing points here. 
>  
> When do you
>  
> #!/usr/local/bin/python
> You are specifying the location to the python executable in your machine, that rest of the script needs to be interpreted with.
> You are pointing to python is located at /usr/local/bin/python
>  
> Consider the possiblities that in a different machine, python may be installed at /usr/bin/python or /bin/python in those cases, the above #! will fail.
> For those cases, we get to call the env executable with argument which will determine the arguments path by searching in the $PATH and use it correctly.
>  
> Thus,
> #/usr/bin/env python
> Will figure out the correct location of python ( /usr/bin/python or /bin/python from $PATH) and make that as the interpreter for rest of the script.
> - ( env is almost always located in /usr/bin/ so one need not worry what is env is not present at /usr/bin)
>  
> Hope this helps.
>  
> 
> 
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> 
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I've always used #!/usr/bin/python...

Perhaps I should use the "#!/usr/bin/env python" one.

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