Github user nchammas commented on a diff in the pull request:
https://github.com/apache/spark/pull/15659#discussion_r86692033
--- Diff: python/pyspark/find_spark_home.py ---
@@ -0,0 +1,66 @@
+#!/usr/bin/python
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# This script attempt to determine the correct setting for SPARK_HOME given
+# that Spark may have been installed on the system with pip.
+
+from __future__ import print_function
+import os
+import sys
+
+
+def _find_spark_home():
+ """Find the SPARK_HOME."""
+ # If the enviroment has SPARK_HOME set trust it.
+ if "SPARK_HOME" in os.environ:
+ return os.environ["SPARK_HOME"]
+
+ def is_spark_home(path):
+ """Takes a path and returns true if the provided path could be a
reasonable SPARK_HOME"""
+ return (os.path.isfile(os.path.join(path, "bin/spark-submit")) and
+ (os.path.isdir(os.path.join(path, "jars"))))
+
+ paths = ["../", os.path.join(os.path.dirname(sys.argv[0]), "../")]
--- End diff --
I meant you are probably looking for
```python
paths = [THIS_DIR, os.path.dirname(THIS_DIR)]
```
The signature of `os.path.dirname()` is the same in Python 3.
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