Re: How does setup.py work?
- From: Robert Kern <robert.kern@xxxxxxxxx>
- Date: Wed, 19 Dec 2007 03:17:23 -0600
dxm wrote:
I am a new comer to python.
I am wondering how setup.py works.
For example, I have a directory like this:
/
setup.py
mymodule.c
where setup.py is:
from distutils.core import setup, Extension
mod = Extension('mymodule', sources = ['mymodule.c'])
setup (name = 'Package',
version = '1.0',
description = 'This is a demo package',
ext_modules = [mod])
The correct way to install the newly created extension module is to
type
python setup.py install instead of executing those statements in
python shell, isn't it ?
Yes.
My question is how additional arguments like 'build', 'install' are
passed into python
Command-line arguments are passed into Python as the list sys.argv. Try running
the following script to explore this:
#### sys_argv.py ####
#!/usr/bin/env python
import sys
print sys.argv
#####################
[~]$ python sys_argv.py
['sys_argv.py']
[~]$ python sys_argv.py build
['sys_argv.py', 'build']
[~]$ python sys_argv.py build_ext --inplace install
['sys_argv.py', 'build_ext', '--inplace', 'install']
http://docs.python.org/lib/module-sys.html
Code inside setup() parses this list to determine what actions the user wants it
to take.
and how
can I install it from interactively from python shell
Generally speaking, you don't. distutils was not really designed for this use
case. There is no easy way to do this.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
.
- References:
- How does setup.py work?
- From: dxm
- How does setup.py work?
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