Building custom dictionaries allows you to define powerful programs. You can easily build new dictionaries that have custom behavior or new functionalities, which build on top of regular Python dictionaries. In this tutorial, you’ll learn how to use the Python collections UserDict class to create custom dictionaries. You’ll also learn how to build your own […]
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The Python collections module provides Python’s implementations of chain maps with the ChainMaps class. This allows you to implement multiple dictionaries in the same context. This means that you can maintain multiple dictionaries, but access them as though they were a single dictionary. In this tutorial, you’ll learn how to use the ChainMap class from
Collections ChainMaps in Python: Complete Guide Read More »
Python OrderedDicts are dictionary subclasses that maintain the order of the items added to them. Since Python 3.6, dictionaries in Python have maintained order. So this begs the question, why do we still need the OrderedDict class from the Python collections module? By the end of this tutorial, you’ll have gained a strong understanding of
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Double-ended queues, or deques, are available in Python as part of the collections module. At first glance, that sentence may have had a lot of words and concepts in them that may not be immediately clear. If that’s the case, don’t worry! By the end of this tutorial, you’ll be a pro at deques and
Python Collections deque – Stacks and Queues Read More »
Python provides you with incredibly versatile and powerful ways in which to handle files. Being a general-purpose programming language, completing I/O operations in Python is quite easy. Being able to work with files with the simple and intuitive syntax of Python makes it easy to work with files in many different ways. In this complete
File Handling in Python: A Complete Guide Read More »
In many cases, you’ll encounter zipped files (or need to zip files yourself). Because zip files are so common, being able to work with them programmatically is an important skill. In this tutorial, you’ll learn how to zip and unzip files using Python. By the end of this tutorial, you’ll have learned: Understanding the Python
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Automating tasks such as moving files or renaming files is an essential skill for any Python developer. Because Python is a general-purpose programming language, it offers many possibilities for working with and automating file workflows. In this tutorial, you’ll learn how to use Python to move files, both a single file and multiple files, using
How to Move Files in Python (os, shutil) Read More »
Being able to work with files is an essential skill for a Python developer of any skill level. In particular, Python can be used to easily rename a single file or multiple files. Being able to automate repetitive tasks, such as renaming files can save you a ton of time. In this tutorial, you’ll learn
How to Rename Files in Python with os.rename() Read More »
Working with missing data is an essential skill for any data analyst or data scientist! In many cases, you’ll want to replace your missing data, or NaN values, with zeroes. In this tutorial, you’ll learn how to use Pandas to replace NaN values with zeroes. This is a common skill that is part of better
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Conditional statements, or if-else statements, allow you to control the flow of your code. Understanding the power of if-else statements allows you to become a stronger Python programmer. This is because they allow you to execute only certain parts of your code if a condition or multiple conditions are met. In this tutorial, you’ll learn
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The Python endswith method is used to check if a string ends with a specific substring. In this tutorial, you’ll learn how to use the Python endswith method to evaluate whether a string ends with one or more substrings. Being able to check if a string ends with another string allows you to, for example,
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The Python startswith method is used to check if a string starts with a specific substring. In this tutorial, you’ll learn how to use the Python startswith function to evaluate whether a string starts with one or more substrings. Being able to check if a string starts with another string is a useful way to
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