Introduction to Importing Data in Python
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Learn to import data into Python from various sources, such as Excel, SQL, SAS and right from the web.
Course Description
As a data scientist, you will need to clean data, wrangle and munge it, visualize it, build predictive models, and interpret these models. Before you can do so, however, you will need to know how to get data into Python. In this course, you’ll learn the many ways to import data into Python: from flat files such as .txt and .csv
from files native to other software such as Excel spreadsheets, Stata, SAS, and MATLAB files
and from relational databases such as SQLite and PostgreSQL.
What You’ll Learn
Introduction and flat files
In this chapter, you’ll learn how to import data into Python from all types of flat files, which are a simple and prevalent form of data storage. You’ve previously learned how to use NumPy and pandas—you will learn how to use these packages to import flat files and customize your imports.
Working with relational databases in Python
In this chapter, you’ll learn how to extract meaningful data from relational databases, an essential skill for any data scientist. You will learn about relational models, how to create SQL queries, how to filter and order your SQL records, and how to perform advanced queries by joining database tables.
Importing data from other file types
You’ve learned how to import flat files, but there are many other file types you will potentially have to work with as a data scientist. In this chapter, you’ll learn how to import data into Python from a wide array of important file types. These include pickled files, Excel spreadsheets, SAS and Stata files, HDF5 files, a file type for storing large quantities of numerical data, and MATLAB files.
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