[GitHub] spark pull request: [SPARK-1267][PYSPARK] Adds pip installer for p...

[mnazbro <gi...@git.apache.org>]

Github user mnazbro commented on a diff in the pull request:

    https://github.com/apache/spark/pull/8318#discussion_r46585482
  
    --- Diff: python/pyspark/__init__.py ---
    @@ -36,6 +36,53 @@
           Finer-grained cache persistence levels.
     
     """
    +import os
    +import re
    +import sys
    +
    +from os.path import isfile, join
    +
    +import xml.etree.ElementTree as ET
    +
    +if os.environ.get("SPARK_HOME") is None:
    +    raise ImportError("Environment variable SPARK_HOME is undefined.")
    +
    +spark_home = os.environ['SPARK_HOME']
    +pom_xml_file_path = join(spark_home, 'pom.xml')
    +snapshot_version = None
    +
    +if isfile(pom_xml_file_path):
    +    try:
    +        tree = ET.parse(pom_xml_file_path)
    +        root = tree.getroot()
    +        version_tag = root[4].text
    +        snapshot_version = version_tag[:5]
    +    except:
    +        raise ImportError("Could not read the spark version, because pom.xml file" +
    +                          " could not be read.")
    +else:
    +    try:
    +        lib_file_path = join(spark_home, "lib")
    --- End diff --
    
    @alope107 Can we go ahead and find the version only from the spark-assembly jar?


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