In Python, the dir() function returns a list of the attributes and methods that belong to an object. This can be useful for exploring and discovering the capabilities of an object, as well as for debugging and testing. For example, let’s list the attributes associated with a Python string: Output: The result is a complete …
The dir() Function in Python: A Complete Guide (with Examples) Read More »
To get the size of a Python object, you can use the getsizeof() function from the sys module. This function returns the size of an object in bytes. For example, let’s print the size of a list and the size of an integer: Output: ⚠️ Keep in mind that sys.getsizeof() function only returns the size …
How to Get the Size of a Python Object (Examples & Theory) Read More »
You can place an if…else statement into a list comprehension in Python. For example: Notice that the if…else statement in the above expression is not traditional if…else statement, though. Instead, it’s a ternary conditional operator, also known as the one-line if-else statement in Python. Example Given a list of numbers, let’s construct a list of …
Python ‘if…else’ in a List Comprehension (Examples) Read More »
In Python, a dictionary is a collection of key-value pairs. Both dictionary.get(‘key’) and dictionary[‘key’] are used to retrieve the value associated with a given key in a dictionary. However, there is a clear difference between the two: To put it short, dictionary.get(‘key’) is the safer way to get value from a dictionary. You shouldn’t use …
Python dict.get(‘key’) vs dict[‘key’] — Don’t Use Square Brackets Read More »
In Python, you can use sys.maxsize from the sys module to get the maximum and minimum integer values. The sys.maxsize gives you the maximum integer value and its negative version -sys.maxsize – 1 gives you the minimum integer value. Notice that Python 3.0+ doesn’t limit the int data type and there’s no maximum/minimum value. But …
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To find all files with a particular extension in Python, you can use the os.walk function to traverse the directory structure, and check if each file has the desired extension using the file.endswith() method. For example, let’s find all the .txt files: This will print the full path of all files with the .txt extension …
Python Find Files with Extension (.txt): A Step-by-Step Guide Read More »
In Python, the and keyword is used to represent the logical AND operator. For example: The and keyword is used in a similar way to the && operator in other programming languages. It will evaluate to True if both operands are True, and False otherwise. If you came from another coding language and didn’t know …
Python Equivalent of the ‘&&’ Operator (The ‘and’ Operator) Read More »
To print without a space in Python, you can set the sep parameter to specify a separator between the values you are printing. For example, to print a list of numbers without any spaces between them, you could use the following code: This will print the numbers 12345 without any spaces between them. You can …
Drawing a Christmas tree with asterisks (*) in Python isn’t probably the most impressive Christmas present, but it offers a nice challenge that tests your understanding of loops. This guide teaches you how to draw Christmas trees in Python in three different ways that incorporate loops and recursion. Let’s jump into it! Drawing Christmas Trees …
How to Draw a Christmas Tree in Python (3 Different Ways) Read More »
To draw a pie chart in Python, use the matplotlib library’s pie() function. Here’s an example code that produces a pie chart with 4 slices: This is a complete guide to plotting pie charts in Python using the matplotlib module. If you’re not familiar with pie charts or matplotlib, make sure to read the entire …
How to Plot a Pie Chart in Python: Step-by-Step Guide (Matplotlip) Read More »
