Using Python (on Windows) with NetApp ONTAP - Dummy’s Guide

Following on from the previous post, my (Dummy’s) guide for Python with ONTAP!

1) Download Python

This seems like a good place to start: The Hitchhiker's Guide to Python

- installing on Windows: http://docs.python-guide.org/en/latest/starting/install/win/

- Python 2.7.12: https://www.python.org/ftp/python/2.7.12/python-2.7.12.msi

2) Install Python

Double-click the python-2.7.12.msi and follow the prompts to install.

- Default installation directory is C:\Python27\

- On the Customize Python 2.7.12 screen, I select ‘Add python.exe to Path’ (since I have no other version of Python).

Image: Installing Python for Windows

3) Download the NetApp Manageability SDK (NMSDK)

If not already done so...

http://mysupport.netapp.com/NOW/cgi-bin/software/

> NetApp Manageability SDK > All Platforms

4) NetApp Python Library

Unzip the NMSDK.

To keep my python libraries in one place, I copy the NetApp folder from:

netapp-manageability-sdk-5.6 > lib > python > NetApp

- to -

C:\Python27\Lib

5) Test

Below is a very simple Python script example taken from the NMSDK and ZExplore.

i) Copy and paste into a text editor

ii) Edit CLUSTER_NAME, USER_NAME, and PASSWORD as required.

iii) Save as get-version.py

iv) Run in the DOS command prompt as>

python get-version.py

import sys

sys.path.append("C:/Python27/Lib/NetApp")

from NaServer import *

s = NaServer("CLUSTER_NAME", 1 , 31)

s.set_server_type("FILER")

s.set_transport_type("HTTPS")

s.set_port(443)

s.set_style("LOGIN")

s.set_admin_user("USER_NAME", "PASSWORD")

api = NaElement("system-get-version")

xo = s.invoke_elem(api)

if (xo.results_status() == "failed") :

  print ("Error:\n")

  print (xo.sprintf())

  sys.exit (1)

print ("Received:\n")

print (xo.sprintf())

Note: I was getting the error -

status="failed" reason="[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)" errno="13001"

- and had to change transport_type to HTTP, and port to 80, to get this to work.

Image: Python success!

THE END

Random tip: To change the DOS command prompt to "CMD> ", type in the command prompt>

prompt CMD$g$s