4f79b9fffd
### What changes were proposed in this pull request? This PR aims to use `python3` instead of `python` inside `bin/pyspark`, `bin/find-spark-home` and `bin/find-spark-home.cmd` script. ``` $ git diff master --stat bin/find-spark-home | 4 ++-- bin/find-spark-home.cmd | 4 ++-- bin/pyspark | 4 ++-- ``` ### Why are the changes needed? According to [PEP 394](https://www.python.org/dev/peps/pep-0394/), we have four different cases for `python` while `python3` will be there always. ``` - Distributors may choose to set the behavior of the python command as follows: python2, python3, not provide python command, allow python to be configurable by an end user or a system administrator. ``` Moreover, these scripts already depend on `find_spark_home.py` which is using `#!/usr/bin/env python3`. ``` FIND_SPARK_HOME_PYTHON_SCRIPT="$(cd "$(dirname "$0")"; pwd)/find_spark_home.py" ``` ### Does this PR introduce _any_ user-facing change? No. Apache Spark 3.1 already drops Python 2.7 via SPARK-32138 . ### How was this patch tested? Pass the Jenkins or GitHub Action. Closes #29246 from dongjoon-hyun/SPARK-FIND-SPARK-HOME. Authored-by: Dongjoon Hyun <dongjoon@apache.org> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
42 lines
1.9 KiB
Bash
Executable file
42 lines
1.9 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Attempts to find a proper value for SPARK_HOME. Should be included using "source" directive.
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FIND_SPARK_HOME_PYTHON_SCRIPT="$(cd "$(dirname "$0")"; pwd)/find_spark_home.py"
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# Short circuit if the user already has this set.
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if [ ! -z "${SPARK_HOME}" ]; then
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exit 0
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elif [ ! -f "$FIND_SPARK_HOME_PYTHON_SCRIPT" ]; then
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# If we are not in the same directory as find_spark_home.py we are not pip installed so we don't
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# need to search the different Python directories for a Spark installation.
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# Note only that, if the user has pip installed PySpark but is directly calling pyspark-shell or
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# spark-submit in another directory we want to use that version of PySpark rather than the
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# pip installed version of PySpark.
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export SPARK_HOME="$(cd "$(dirname "$0")"/..; pwd)"
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else
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# We are pip installed, use the Python script to resolve a reasonable SPARK_HOME
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# Default to standard python3 interpreter unless told otherwise
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if [[ -z "$PYSPARK_DRIVER_PYTHON" ]]; then
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PYSPARK_DRIVER_PYTHON="${PYSPARK_PYTHON:-"python3"}"
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fi
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export SPARK_HOME=$($PYSPARK_DRIVER_PYTHON "$FIND_SPARK_HOME_PYTHON_SCRIPT")
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fi
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