python deploying application on server

Question

I have developed this python application, it works by going to the directory

cd Truman-2.5/truman/

and execute

./truman -c config/tru.ini

➜  Truman-2.5  tree
.
├── CHANGES
├── LICENSE
├── README
├── docs
├── files.txt
├── requirements.txt
├── scripts
├── setup.py
├── tests
│   └── __init__.py
└── truman
    ├── __init__.py
    ├── config
    │   └── tru.ini
    ├── vcore
    │   ├── __init__.py
    │   ├── __init__.pyc
    │   ├── addVM.py
    │   ├── addVM.pyc
    └── truman

I have also created a setup file,

setup.py

import os
from setuptools import setup

# Utility function to read the README file.
# Used for the long_description.  It's nice, because now 1) we have a top level
# README file and 2) it's easier to type in the README file than to put a raw
# string in below ...
def read(fname):
    return open(os.path.join(os.path.dirname(__file__), fname)).read()

setup(
    name = "truman",
    version = "2.5",
    author = "KSHK",
    author_email = "[email protected]",
    description = ("Truman Automation Tool"),
    license = "BSD",
    keywords = "example documentation tutorial",
    url = "https://github.com/truman/trumman.git",
    packages=['truman.vcore','tests'],
    long_description=read('README'),
    scripts=["truman/truman"],
    classifiers=[
        "Development Status :: 3 - Alpha",
        "Topic :: Utilities",
        "License :: OSI Approved :: BSD License",
    ],
)

now, I want to deploy this executable "truman" in /usr/local/bin, so I used the scripts parameter in setup.py, however it created this executable in /usr/local/bin

#!/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
# EASY-INSTALL-SCRIPT: 'truman==2.5','truman'
__requires__ = 'truman==2.5'
import pkg_resources
pkg_resources.run_script('truman==2.5', 'human')

What is the best way to deploy a python executable from your code under /usr/local/bin, and also making sure that it is importing the package and modules from your application?

UPDATE:

Added entry_points to setup.py

import os
from setuptools import setup

# Utility function to read the README file.
# Used for the long_description.  It's nice, because now 1) we have a top level
# README file and 2) it's easier to type in the README file than to put a raw
# string in below ...
def read(fname):
    return open(os.path.join(os.path.dirname(__file__), fname)).read()

setup(
    name = "truman",
    version = "2.5",
    author = "KSHK",
    author_email = "[email protected]",
    description = ("truman Automation Tool"),
    license = "BSD",
    keywords = "example documentation tutorial",
    url = "https://git/git",
    packages=['truman'],
    long_description=read('README'),
    classifiers=[
        "Development Status :: 3 - Alpha",
        "Topic :: Utilities",
        "License :: OSI Approved :: BSD License",
    ],
    entry_points = {
    'console_scripts': [
        'truman = truman:main_func',
    ],
    }
)

however executing the truman gives this error:

➜  truman-2.5  /usr/local/bin/truman -c truman/config/tru.ini
Traceback (most recent call last):
  File "/usr/local/bin/truman", line 8, in <module>
    load_entry_point('truman==2.5', 'console_scripts', 'truman')()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 318, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2221, in load_entry_point
    return ep.load()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 1959, in load
    raise ImportError("%r has no %r attribute" % (entry,attr))
ImportError: <module 'truman' from '/Library/Python/2.7/site-packages/truman-2.5-py2.7.egg/truman/__init__.pyc'> has no 'main_func' attribute

the truman script basically calls the vcore module and passes the values to the addVM

#!/usr/bin/python
__author__ = 'krishnaa'
import os
os.sys.path.append(os.path.dirname(os.path.abspath('.')))

import optparse
from vcore.addVM import addVM

def main():
    parser = optparse.OptionParser()
    parser.add_option('-c', '--config',
                      dest="config_file",
                      default='vcloudE.ini'
                        )
    options, remainder = parser.parse_args()
    addVM(options)

if __name__ == "__main__":
    main()

any suggestions?

gkocjan · Accepted Answer · 2014-09-09 09:53:05Z

1

You can use entry_points in witch you can point main function of your application. Entry point will generate similar script as above, but it is ok. This script just executes your main_function.

setup(
    entry_points = {
        'console_scripts': [
            'truman = truman.truman:main_func',
        ],
    }
)

answered Sep 9, 2014 at 9:53

gkocjan

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1 Comment

gkocjan Over a year ago

change main_func to your main/starting function in project, so in your case it will be main (truman = truman.truman:main)

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