Python How To’s
A collection of small, useful, how to’s for Python.
How to Recursively Copy a Folder (Directory) in Python
Ever tried to copy a directory/folder in Python? Ever failed? No matter. Try again! If you haven’t already read it, look at the article How to Copy a File in Python with shutil for an explanation of how to copy files with shutil. Recursively Copying a Directory/Folder of Files in Python In the article that […]
Read MoreHow to Rename (Move) a File in Python
Renaming (in Python it’s known as moving) a file in Python is really simple, and can be done in very few lines thanks to a handy module called shutil. shutil has a function called move that does precisely what the function name implies. It moves files or directories from one location to another. Here’s a […]
Read MoreHow to Slice Custom Objects/Classes in Python
For an introduction to slicing, please view the article How to Slice Lists/Arrays and Tuples in Python. Slicing Your Own Python Objects Alright, that’s all cool, now we know how to slice. But how do we slice our own objects? If I implement an object that has a list, or custom data structure, how do […]
Read MoreHow to See if a String Contains Another String in Python
Ever wanted to see if a string contains a string in Python? Thought it was going to be complicated like C? Think again! Python implements this feature in a very easy to read and easy to implement fashion. There are two ways of doing it, and some will like one way better than the other, […]
Read MoreHow to Copy a File in Python with Shutil
So you want to know how to copy a file in Python? Good! It’s very useful to learn and most complex applications that you may design will need at least some form of copying files. Copying a Single File in Python Alright, let’s get started. This first section will describe how to copy a single […]
Read MoreHow to Slice Lists/Arrays and Tuples in Python
So you’ve got an list, tuple or array and you want to get specific sets of sub-elements from it, without any long, drawn out for loops? Python has an amazing feature just for that called slicing. Slicing can not only be used for lists, tuples or arrays, but custom data structures as well, with the […]
Read MoreHow to Get a Sub-string From a String in Python – Slicing Strings
So how do you get a sub-string in Python? Well, Python has a handy dandy feature called “slicing” that can be used for getting sub-strings from strings. But first, we have to go over a couple of things to understand how this works. Slicing Python Objects Strings, in Python, are arrays of characters, except they […]
Read MoreHow to Use Python’s xrange and Range
Python has two handy functions for creating lists, or a range of integers that assist in making for loops. These functions are xrange and range. In this article, we will guide you on how to effectively utilize Python’s xrange and range functions while also exploring the best laptops for working from home. But you probably already […]
Read MoreHow to Sort a List, Tuple or Object (with sorted) in Python
Sorting a list or tuple is easy in Python! Since a tuple is basically like an array that is not modifiable, we’ll treat it almost the same as a list. Sorting a Python List the Simple Way Okay, so if you only want to sort a list of numbers, Python has a built in function […]
Read MoreHow to Check if a List, Tuple or Dictionary is Empty in Python
The preferred way to check if any list, dictionary, set, string or tuple is empty in Python is to simply use an if statement to check it. For example, if we define a function as such: [python] def is_empty(any_structure): if any_structure: print(‘Structure is not empty.’) return False else: print(‘Structure is empty.’) return True [/python] It […]
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