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https://issues.apache.org/jira/browse/CASSANDRA-17832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Brad Schoening updated CASSANDRA-17832:
---------------------------------------
Description:
For cqlsh.py this:
#!/usr/bin/env python
is preferable to the current hard coded /usr/bin/python3 which doesn't take
into account the python interpreter preferences in the users PATH.
'{{{}env{}}}' is a system binary in {{/usr/bin}} that searches {{$PATH}} for
strings containing the provided argument and returns the first instance it
finds. In the above syntax, {{env}} will search for the first instance of
{{python}} in {{$PATH}} and return it.
This is aligned with the recommendations in [https://peps.python.org/pep-0394/]
For example, on a MacOS:
{code:java}
% /usr/bin/python3 --version
Python 3.8.9. (xcode python version)
% /usr/bin/env python --version
Python 3.10.6. (brew python version)
% python --version
Python 3.10.6. (default)
{code}
Thus, /usr/bin/python3 doesn't run the expected default python version
Even the official Python tutorial uses /usr/bin/env:
[https://docs.python.org/3/tutorial/interpreter.html]
was:
For cqlsh.py this:
#!/usr/bin/env python
is preferable to the current hard coded /usr/bin/python3 which doesn't take
into account the python interpreter preferences in the users PATH.
'{{{}env{}}}' is a system binary in {{/usr/bin}} that searches {{$PATH}} for
strings containing the provided argument and returns the first instance it
finds. In the above syntax, {{env}} will search for the first instance of
{{python}} in {{$PATH}} and return it.
This is aligned with the recommendations in [https://peps.python.org/pep-0394/]
For example, on a MacOS:
{code:java}
% /usr/bin/python3 --version
Python 3.8.9. (xcode python version)
% /usr/bin/env python --version
Python 3.10.6. (brew python version)
% python --version
Python 3.10.6. (default)
{code}
Thus, /usr/bin/python3 doesn't run the expected default python version
> Change bin/cqlsh.py shebang to use PATH with env prefix
> -------------------------------------------------------
>
> Key: CASSANDRA-17832
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17832
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Brad Schoening
> Priority: Normal
>
> For cqlsh.py this:
> #!/usr/bin/env python
> is preferable to the current hard coded /usr/bin/python3 which doesn't take
> into account the python interpreter preferences in the users PATH.
> '{{{}env{}}}' is a system binary in {{/usr/bin}} that searches {{$PATH}} for
> strings containing the provided argument and returns the first instance it
> finds. In the above syntax, {{env}} will search for the first instance of
> {{python}} in {{$PATH}} and return it.
> This is aligned with the recommendations in
> [https://peps.python.org/pep-0394/]
> For example, on a MacOS:
>
> {code:java}
> % /usr/bin/python3 --version
> Python 3.8.9. (xcode python version)
> % /usr/bin/env python --version
> Python 3.10.6. (brew python version)
> % python --version
> Python 3.10.6. (default)
> {code}
> Thus, /usr/bin/python3 doesn't run the expected default python version
> Even the official Python tutorial uses /usr/bin/env:
> [https://docs.python.org/3/tutorial/interpreter.html]
>
>
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