Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/19370#discussion_r151885502
--- Diff: bin/find-spark-home.cmd ---
@@ -0,0 +1,49 @@
+@echo off
+
+rem
+rem Licensed to the Apache Software Foundation (ASF) under one or more
+rem contributor license agreements. See the NOTICE file distributed with
+rem this work for additional information regarding copyright ownership.
+rem The ASF licenses this file to You under the Apache License, Version 2.0
+rem (the "License"); you may not use this file except in compliance with
+rem the License. You may obtain a copy of the License at
+rem
+rem http://www.apache.org/licenses/LICENSE-2.0
+rem
+rem Unless required by applicable law or agreed to in writing, software
+rem distributed under the License is distributed on an "AS IS" BASIS,
+rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied.
+rem See the License for the specific language governing permissions and
+rem limitations under the License.
+rem
+
+rem Path to Python script finding SPARK_HOME
+set FIND_SPARK_HOME_PYTHON_SCRIPT=%~dp0find_spark_home.py
--- End diff --
I manually tested and it looks going to give a message like this:
```cmd
C:\...>pyspark
'python' is not recognized as an internal or external command, operable
program or batch file.
```
which seems roughly fine though it's bit uglily.
So, googled a possible approach, for example,
https://superuser.com/a/718194. However, seems `where` does not recognise an
absolute path, for example, `C:\...\Python27\python.exe`. So, looks we should
make a combination with `exists` keyword.
@jsnowacki if you are active now and know a simple better way, we could
definitely try. Or, probably, we could go ahead as is too ..
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