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You're reading from  Developing Modern Database Applications with PostgreSQL

Product typeBook
Published inAug 2021
PublisherPackt
ISBN-139781838648145
Edition1st Edition
Tools
PostgreSQL
Concepts
Database Administration
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Authors (2):
Dr. Quan Ha Le
Dr. Quan Ha Le
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Dr. Quan Ha Le

Dr. Quan Ha Le graduated with a Ph.D. in computer science from the Queen's University of Belfast, United Kingdom, in 2005. Since his Ph.D. graduation, he has been working as a PostgreSQL database administrator all over Alberta and Ontario, Canada, until now. From 2008 to 2019, Dr. Le Quan Ha administered, designed, and developed 24 small, medium, large, and huge PostgreSQL databases in Canada. Since 2016, after writing a good publication on PostgreSQL database clusters on clouds, he has been a member of the United States PostgreSQL Association (PgUS) in New York City. Dr. Le Quan Ha has also been a board member of the PgUS Diversity committee since 2018.
Read more about Dr. Quan Ha Le

Marcelo Diaz
Marcelo Diaz
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Marcelo Diaz

Marcelo Diaz is a software engineer with more than 15 years of experience, with a special focus on PostgreSQL. He is passionate about open source software and has promoted its application in critical and high-demand environments where he has worked as a software developer and consultant for both private and public companies. He currently works very happily at Cybertec and as a technical reviewer for Packt Publishing. He enjoys spending his leisure time with his daughter, Malvina, and his wife, Romina. He also likes playing football.
Read more about Marcelo Diaz

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Installing Python 3

By default, CentOS 7 comes with Python 2.7.5, and Python 2.7.5 is a crucially built-in part of the CentOS basesystem. However, we intend to create our project with Python version 3.7, so we will now install Python 3.7 on CentOS 7.

At the time of writing this book, Python 3.7 is the current version, and its installation requires the GCC compiler on our ec2 instance. Please refer to the following steps to install the prerequisites for Python before installing it:

  1. First, we enable SCL by installing the CentOS SCL release file. This is included in the CentOS Extras repository:
[root@ip-172-31-95-213 src]# yum install gcc openssl-devel bzip2-devel libffi-devel
  1. After executing the preceding command, the console will look similar to Figure 4.1. Please answer y and you should see something similar to the following screenshot:

Figure 4.1 – Installing the CentOS SCL release file
  1. Next, download Python 3.7 using the following command from Python...
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Developing Modern Database Applications with PostgreSQL
Published in: Aug 2021Publisher: PacktISBN-13: 9781838648145
© 2021 Packt Publishing Limited All Rights Reserved

Authors (2)

author image
Dr. Quan Ha Le

Dr. Quan Ha Le graduated with a Ph.D. in computer science from the Queen's University of Belfast, United Kingdom, in 2005. Since his Ph.D. graduation, he has been working as a PostgreSQL database administrator all over Alberta and Ontario, Canada, until now. From 2008 to 2019, Dr. Le Quan Ha administered, designed, and developed 24 small, medium, large, and huge PostgreSQL databases in Canada. Since 2016, after writing a good publication on PostgreSQL database clusters on clouds, he has been a member of the United States PostgreSQL Association (PgUS) in New York City. Dr. Le Quan Ha has also been a board member of the PgUS Diversity committee since 2018.
Read more about Dr. Quan Ha Le

author image
Marcelo Diaz

Marcelo Diaz is a software engineer with more than 15 years of experience, with a special focus on PostgreSQL. He is passionate about open source software and has promoted its application in critical and high-demand environments where he has worked as a software developer and consultant for both private and public companies. He currently works very happily at Cybertec and as a technical reviewer for Packt Publishing. He enjoys spending his leisure time with his daughter, Malvina, and his wife, Romina. He also likes playing football.
Read more about Marcelo Diaz

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