In Python, strings are sequences of characters, which are effectively stored in memory as an object. Each object can be identified using the id() method, as you can see below. Python tries to re-use objects in memory that have the same value, which also makes comparing objects very fast in
Tag: regex
Total 4 Posts
Introduction
Text preprocessing is one of the most important tasks in Natural Language Processing (NLP). For instance, you may want to remove all punctuation marks from text documents before they can be used for text classification. Similarly, you may want to extract numbers from a text string. Writing manual scripts
In this tutorial we are going to learn about using regular expressions in Python, including their syntax, and how to construct them using built-in Python modules. To do this we’ll cover the different operations in Python's re module, and how to use it in your Python applications.
What are
Many times when you're parsing text you find yourself needing to split strings on a comma character (or new lines, tabs, etc.), but then what if you needed to use a comma in your string and not split on it? An example of this could be a large number. So
