[GitHub] [spark] viirya commented on a change in pull request #29779: [SPARK-32180][PYTHON][DOCS][FOLLOW-UP] Rephrase and add some more information in installation guide

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viirya commented on a change in pull request #29779:
URL: https://github.com/apache/spark/pull/29779#discussion_r491235435



##########
File path: python/docs/source/getting_started/install.rst
##########
@@ -0,0 +1,138 @@
+..  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.
+
+============
+Installation
+============
+
+PySpark is included in the official releases of Spark available in the `Apache Spark website <https://spark.apache.org/downloads.html>`_.
+For Python users, PySpark also provides ``pip`` installation from PyPI. This is usually for local usage or as
+a client to connect to a cluster instead of setting up a cluster itself.
+ 
+This page includes instructions for installing PySpark by using pip, Conda, downloading manually,
+and building from the source.
+
+
+Python Version Supported
+------------------------
+
+Python 3.6 and above.
+
+
+Using PyPI
+----------
+
+PySpark installation using `PyPI <https://pypi.org/project/pyspark/>`_ is as follows:
+
+.. code-block:: bash
+
+    pip install pyspark
+
+If you want to install extra dependencies for a specific componenet, you can install it as below:
+
+.. code-block:: bash
+
+    pip install pyspark[sql]
+
+
+Using Conda
+-----------
+
+Conda is an open-source package management and environment management system which is a part of
+the `Anaconda <https://docs.continuum.io/anaconda/>`_ distribution. It is both cross-platform and
+language agnostic. In practice, Conda can replace both `pip <https://pip.pypa.io/en/latest/>`_ and
+`virtualenv <https://virtualenv.pypa.io/en/latest/>`_.
+
+Create new virtual environment from your terminal as shown below:
+
+.. code-block:: bash
+
+    conda create -n pyspark_env
+
+After the virtual environment is created, it should be visible under the list of Conda environments
+which can be seen using the following command:
+
+.. code-block:: bash
+
+    conda env list
+
+Now activate the newly created environment with the following command:
+
+.. code-block:: bash
+
+    conda activate pyspark_env
+
+You can install pyspark by `Using PyPI <#using-pypi>`_ to install PySpark in the newly created
+environment, for example as below. It will install PySpark under the new virtual environemnt
+``pyspark_env`` created above.
+
+.. code-block:: bash
+
+    pip install pyspark
+
+Alternatively, you can install PySpark from Conda itself as below:
+
+.. code-block:: bash
+
+    conda install pyspark
+
+However, note that `PySpark at Conda <https://anaconda.org/conda-forge/pyspark>`_ is not necessarily
+synced with PySpark release cycle because it is maintained by the community separately.
+
+
+Manually Downloading
+--------------------
+
+PySpark is included in the distributions available at the `Apache Spark website <https://spark.apache.org/downloads.html>`_.
+You can download a distribution you want from the site. After that, uncompress the tar file into the directoy where you want
+to install Spark as below:
+
+.. code-block:: bash
+
+    tar xzvf spark-3.0.0-bin-hadoop2.7.tgz
+
+Ensure the ``SPARK_HOME`` environment variable points to the directory where the code has been extracted. 

Review comment:
       `where the tar file has been extracted.`?




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