Installing HPE Ezmeral Data Fabric Event Store Python Client

The HPE Ezmeral Data Fabric Event Store Python Client is a binding for librdkafka that is dependent on the HPE Ezmeral Data Fabric Event Store C client (HPE Ezmeral Data Fabric Event Store C Client is a distribution of librdkafka that works with HPE Ezmeral Data Fabric Event Store).

Prerequisites

Note: As of MapR 5.2.1, you can create Python client applications for HPE Ezmeral Data Fabric Event Store.
Verify that the following components are installed on the node:
  • HPE Ezmeral Data Fabric Event Store C Client (mapr-librdkafka)
  • GNU Compiler Collection (GCC) is installed on the node.
  • Python version 2.7.1 and above, up to Python version 3.6.x.
  • Python pip
  • python-devel (This is required for nodes with the Linux operating system.)
Note: For instructions on setting up the MEP repository, see Step 10: Install Ecosystem Components Manually.
Important: Because the HPE Ezmeral Data Fabric Event Store Python Client is dependent on the HPE Ezmeral Data Fabric Event Store C Client, you must configure the HPE Ezmeral Data Fabric Event Store C Client before using the HPE Ezmeral Data Fabric Event Store Python Client. See Configuring the HPE Ezmeral Data Fabric Event Store C Client.

Installation

Note: The Python client is available for Linux or Mac operating systems.
To install the HPE Ezmeral Data Fabric Event Store Python Client using the Python Software Foundation, run the following command as root or using sudo:
  • On Linux: 
    pip install --global-option=build_ext --global-option="--library-dirs=/opt/mapr/lib" --global-option="--include-dirs=/opt/mapr/include/" mapr-streams-python
  • On Mac:
    pip install --user --global-option=build_ext --global-option="--library-dirs=/opt/mapr/lib" --global-option="--include-dirs=/opt/mapr/include/" mapr-streams-python
Note: The referenced package works on nodes with the Linux or the Mac operating system. The Python Client for HPE Ezmeral Data Fabric Event Store is not supported on Windows.
Alternatively, you can install the HPE Ezmeral Data Fabric Event Store Python Client via the MapR package repository: 
https://package.mapr.com/releases/MEP/<MEP version>/mac/mapr-streams-python-<version>.tar.gz

Troubleshooting Mac OS Installation

If you install the HPE Ezmeral Data Fabric Event Store Python Client on a Mac without the --user flag, you may encounter a "Not Permitted" error, signifying that you don't have permission to create a LICENSE file. The error will look similar to the following:
Copying LICENSE -> /System/Library/Frameworks/Python.framework/Versions/2.7/
                error: [Error 1] Operation not permitted:
                '/System/Library/Frameworks/Python.framework/Versions/2.7/LICENSE'
To fix this issue, execute the following steps. These steps apply to users with a new Mac OS Sierra version 10.12.5.
  1. Reboot your Mac while simultaneously holding the Command and R keys to go into Mac OS X Recovery mode.
  2. Select Utilities, and then Terminal.
  3. Type csrutil disable. A message will pop up, informing you that your System Integrity Protection (SIP) has been sucessfully disabled.
  4. Reboot your Mac again.
  5. Go into the Terminal and execute the following command as the root user:
    pip install --global-option=build_ext  --global-option="--library-dirs=/opt/mapr/lib" --global-option="--include-dirs=/opt/mapr/include/" mapr-streams-python
  6. Once the script runs successfully, reboot your Mac while holding the Command and R keys. You will go into Mac OS X Recovery mode.
  7. Select Utilities, and then Terminal.
  8. Type csruntil enable to enable your SIP.
Note: To avoid this error, consider using a virtual Python environment or the --user flag.
Parent topic: Installing HPE Ezmeral Data Fabric Event Store Clients