Python sets theglobal__name__of a module equal to"__main__"if the Python interpreter runs your code in thetop-level code environment: “Top-level code” is the first user-specified Python module that starts running. It’s “top-level” because it imports all other modules that the progr...
This article explains what the Python code expression if __name__ == '__main__' means.A Python programme uses the condition if __name__ == '__main__' to only run the code inside the if statement when the program is run directly by the Python interpreter. The code inside the if ...
In this tutorial, you'll explore Python's __pycache__ folder. You'll learn about when and why the interpreter creates these folders, and you'll customize their default behavior. Finally, you'll take a look under the hood of the cached .pyc files.
Dynamic Typing : In Python, you don’t need to explicitly declare variable data types. Instead, the Python interpreter dynamically determines variable types during runtime based on the data involved. This feature, known as duck typing, simplifies coding but requires careful attention to prevent run...
In Python, when you write a code, the interpreter needs to understand what each part of your code does. Tokens are the smallest units of code that have a specific purpose or meaning. Each token, like a keyword, variable name, or number, has a role in telling the computer what to do....
How does Python's__name__variable work? The__name__variable is a special attribute managed by the Python runtime. When a developer executes a Python program, the interpreter sets several variables, including__name__.There are two outcomes for the__name__variable: ...
Python 3.x, the current and future incarnation of the language, has many useful and important features not found in Python 2.x, such as new syntax features (e.g., the “walrus operator”), better concurrency controls, and a more efficient interpreter. Python 3 adoption was slowed for the...
in the same line, the Python interpreter creates a new object, then references the second variable at the same time. If you do it on separate lines, it doesn't "know" that there's already "wtf!" as an object (because "wtf!" is not implicitly interned as per the facts mentioned abov...
what does <__name__ == "__main__"> do? When your script is run by passing it as a command to the Python interpreter, python myscript.py all of the code that is at indentation level 0 gets executed. Functions and classes that are defined are, well, defined, but none of their ...
In python 3.3 version, the __init__.py was introduced with the feature of creating a package with the namespace. Let's understand the purpose of the __init__.py file - It makes the directory a Python package so the interpreter can find the module inside. It can contain the package...