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Example. List all the defined names belonging to the platform module: import platform. x = dir(platform) print(x) Try it Yourself ». Note: The dir () function can be used on all modules, also the ones you create yourself.
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- Python Dates
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- Python Math
Example. Return the value of 4 to the power of 3 (same as 4...
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We can import the definitions inside a module to another module or the interactive interpreter in Python. We use the import keyword to do this. To import our previously defined module example, we type the following in the Python prompt. This does not import the names of the functions defined in example directly in the current symbol table. It only ...
The Python standard library contains well over 200modules. We can import a module according to our needs. Suppose we want to get the value of pi, first we import the math module and use math.pi. For example, Output
In Python, we can also import a module by renaming it. For example, Here, We have renamed the math module as m. This can save us typing time in some cases. Note that the name math is not recognized in our scope. Hence, math.pi is invalid, and m.piis the correct implementation.
We can import specific names from a module without importing the module as a whole. For example, Here, we imported only the pi attribute from the mathmodule.
In Python, we can import all names(definitions) from a module using the following construct: Here, we have imported all the definitions from the math module. This includes all names visible in our scope except those beginning with an underscore(private definitions). Importing everything with the asterisk (*) symbol is not a good programming practic...
In Python, we can use the dir()function to list all the function names in a module. For example, earlier we have defined a function add() in the module example. We can use dir in examplemodule in the following way: Here, we can see a sorted list of names (along with add). All other names that begin with an underscore are default Python attributes a...
Aug 9, 2024 · A Python module is a file containing Python definitions and statements. A module can define functions, classes, and variables. A module can also include runnable code. Grouping related code into a module makes the code easier to understand and use. It also makes the code logically organized.
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Aug 2, 2022 · The pass Statement. How does Function work in Python? Scope and Lifetime of Variables. Local Variable in function. Global Variable in function. Global Keyword in Function. Nonlocal Variable in Function. Python Function Arguments. Positional Arguments. Keyword Arguments. Default Arguments. Variable-length Arguments.
For example, you can call a function defined in the imported module using the following syntax: module_name.function_name() Code language: Python (python) The following shows how to use the get_net_price() function defined in the pricing module in the main.py file: # main.py import pricing. net_price = pricing.get_net_price( price= 100,
Jul 29, 2024 · You can use the functions inside a module by using a dot (.) operator along with the module name. First, let's see how to use the standard library modules. In the example below, the math module is imported into the program so that you can use the sqrt() function.
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A module is a file with the extension .py and contains executable Python or C code. A module contains several Python statements and expressions. We can use pre-defined variables, functions, and classes with the help of modules. This saves a lot of developing time and provides reusability of code.
