best way to ensure './' is at beginning of sys.path?

[Cameron Simpson]

On 04Feb2017 12:16, Steve D'Aprano <steve+python at pearwood.info> wrote:
>On Sat, 4 Feb 2017 03:06 am, Neal Becker wrote:
>> I want to make sure any modules I build in the current directory overide
>> any
>> others.  To do this, I'd like sys.path to always have './' at the
>> beginning.
>>
>> What's the best way to ensure this is always true whenever I run python3?
>
>For some definition of "always"...
>I don't know about "best", but you can do this:
>
>1. In your .bashrc file, or equivalent, set the environment
>   variable PYTHONPATH:
>export PYTHONPATH='./;$PYTHONPATH'

You want double quotes (allowing parameter substitution) instead of single 
quotes here. Or, of course, no quotes at all. And the separator is ":", not 
";".

Personally, I'm against hacking the $PYTHONPATH this way at all.

Far better to invoke the Python script via a shell script that includes the 
absolute path of the current directory (or the module directory) in the 
$PYTHONPATH.

Cheers,
Cameron Simpson <cs at zip.com.au>

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