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Using Python stdin, stdout, and stderr with the sys Module

Aug 9, 2019

This tutorial will explain how to use shell standard input (stdin), standard output (stdout), and standard error (stderr) in Python programs using the sys module.

Using Command Line Arguments with Python sys.argv

Jul 26, 2019

This tutorial describes how to use command line arguments passed to a Python script execution with the sys module's argv list.

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Grouping DataFrame Data with the Pandas groupby Operation

Jul 12, 2019

Use the Python Pandas groupby operation to group and aggregate data in a DataFrame. The Pandas groupby operation can group data by a single or multiple columns.

Using Python Regex Groups to Capture Substrings

Jun 28, 2019

This tutorial describes how to use Python Regex Groups to capture a substring or submatch, and it describes how to refer to a group's substring inside a regex.

Exporting DataFrames to Excel with Pandas ExcelWriter

Jun 14, 2019

This tutorial will teach you how to export a Pandas DataFrames to a Microsoft Excel spreadsheet using the to_excel and Pandas ExcelWriter functions.

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Understanding Python Regex Matching

Jun 7, 2019

Understanding Python Regex (concatenation, alternation, and repetition) and how to use the Python re module to match strings and byte sequences to a regular expression.

Making New Collations with Python SQLite create_collation

May 24, 2019

Learn how to make your own collations, or collate sequences, with the Python SQLite3 create_collation method. We will also describe the predefined collations.

Create Scalar and Aggregate Functions for Python SQLite

May 10, 2019

Learn how to create your own scalar and aggregate functions and add them to a Python SQLite connection with the create_function and create_aggregate methods.

Convert CSV to SQLite Python and Export SQLite to CSV

Apr 26, 2019

In this tutorial we will learn how to import data from a CSV file into a SQLite database using Python adapters, and how to write data from a SQLite database to a CSV file using Python converters.

Adapting and Converting SQLite Data Types for Python

Apr 12, 2019

This tutorial will explain all the methods the sqlite3 module provides for converting and adapting Python data types into SQLite types, and the other way around.

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