Running python script in Blender

python blender

You can also execute the following code in the python console to execute an external script without opening it up in the text editor:

filename = "/full/path/to/myscript.py"exec(compile(open(filename).read(), filename, 'exec'))

The above code comes from the following link:

python blender

P.s. Instead of opening a file in step 2, you can also hit the "+ New" button and create a new script instead.

Note : In newer versions the Run Script button label has been replaced with a Play icon :

python blender

this answer is too late, but to help anyone with the same problem

via the terminal:

blender yourblendfilenameorpath --python drawcar.py

from the man pages

       -P or --python <filename>              Run the given Python script file.

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