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Megha Sharma

Posted on 23rd June 2024|741 views

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Why Do We Use #!/usr/bin/env Python On The First Line Of A Python Script?

I have recently started working on Python. I found that some python script begins with #!/usr/bin/env python instead of #!/usr/bin python. 

Can anyone tell me Is there are same or different?

 

1 answers
Answers
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Justus Blake

Posted on 23rd June 2024| views

Hey Megha,
If in case you have installed several versions of python, the #!/usr/bin/env ensures that the interpreter will use the first installed or default version of python on your system. The other one would be to hardcode #!/usr/bin python but less flexible.

We use #!/usr/bin/env python instead of #!/usr/bin python because it is required to specify an absolute path to the program, and #!/usr/bin/env python that helps the user’s path to run an application and thus, it is more portable.

 

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