I keep banging my head against this problem.  To try something different, I 
ssh over to my Raspberry Pi.  I check, and its got Python 3 right there in 
/usr/bin/ . So I use vim to create same script on the Rasperrry Pi, chmod 
755, and I see "Hello World" the very first try.  

So to recap, both my PowerBook with macOS 10.15.3 and my Raspberry Pi 
running Debian GNU/Linux have a version of Python3 installed in their 
/usr/bin directories.  Both system have /usr/bin in their PATH.  They both 
have the same two line script and both start with the same Shebang: 
#!/usr/bin/python3.  The Raspberry Pi works perfect, the Mac can only 
muster "#!/usr/bin/python3: No such file or directory".

What is different between the two systems? Where should I look? 


On Thursday, March 5, 2020 at 7:06:11 AM UTC-5, Paul Gobble wrote:

> I'm using BBedit 13.0.5 on Mac Os 10.15.3 as my editor while I try to 
> learn a bit of Python3.  
>
> #!/usr/bin/env python3
> print('Hello World')
>
> Baby steps.
>
> I try to execute this from the Run menu item in the #! menu and get
>
> /Users/.../Scripts/python_test-01.py: line 1: #!/usr/bin/env: No such 
> file or directory
>
> Then I try to use the direct path in the shebang line
>
> #!/usr/bin/python3
> print('Hello World')
>
> and get a very similar response
>
> /Users.../Scripts/python_test-01.py: line 1: #!/usr/bin/python3: No such 
> file or directory
>
> So I go investigate in the Terminal app and look around.
>
> Emonda:bin paul$ pwd
>
> /usr/local/bin
>
> Emonda:bin paul$ whereis python3
>
> /usr/bin/python3
>
> Emonda:bin paul$ whereis env
>
> /usr/bin/env
>
> Emonda:bin paul$ 
>
> Both env and python3 are right where I said they were in the shebang line, 
> but interpreter can't find them!  
>
> Can anyone help me out here?  What am I missing?
>
> Thanks,
> Paul
>

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