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Modules

What can a module contain?
The module can contain functions, as already described, but also variables of all types (arrays, dictionaries, objects etc): Import the module named mymodule, and access the person1 dictionary: You can name the module file whatever you like, but it must have the file extension .py
Why do we need a module?
Instead of putting everything in a single file, we can use modules to separate codes in separate files as per their functionality. This makes our code organized and easier to maintain. Module is a file that contains code to perform a specific task. A module may contain variables, functions, classes etc. Let's see an example, Let us create a module.
How to create a module in Python?
To create a module just save the code you want in a file with the file extension .py: Now we can use the module we just created, by using the import statement: Import the module named mymodule, and call the greeting function: Note: When using a function from a module, use the syntax: module_name.function_name.
What are Python modules and Python packages?
This article explores Python modules and Python packages, two mechanisms that facilitate modular programming. Modular programming refers to the process of breaking a large, unwieldy programming task into separate, smaller, more manageable subtasks or modules.

Module Declarations

A translation unit may have a module declaration, in which case it is considered a module unit.The module declaration, if provided, must be the first declaration of the translation unit (excepted the global module fragment, which is covered later on). Each module unit is associated to a module name(and optionally a partition), provided in the modul

Exporting Declarations and Definitions

Module interface units can export declarations (including definitions), which can be imported by other translation units. To export a declaration, either prefix it with the export keyword, or else place it inside an exportblock. See full list on en.cppreference.com

Importing Modules and Header Units

Modules are imported via an import declaration: All declarations and definitions exported in the module interface units of the given named module will be available in the translation unit using the import declaration. Import declarations can be exported in a module interface unit. That is, if module B export-imports A, then importing B will also ma

Global Module Fragment

Module units can be prefixed by a global module fragment, which can be used to include headers when importing the headers is not possible (notably when the header uses preprocessing macros as configuration). If a module-unit has a global module fragment, then its first declaration must be module;. Then, only preprocessing directivescan appear in th

Private Module Fragment

Primary module interface unit can be suffixed by a private module fragment, which allows a module to be represented as a single translation unit without making all of the contents of the module reachable to importers. Private module fragment ends the portion of the module interface unit that can affect the behavior of other translation units. If a

Module Partitions

A module can have module partition units. They are module units whose module declarations include a module partition, which starts with a colon :and is placed after the module name. A module partition represents exactly one module unit (two module units cannot designate the same module partition). They are visible only from inside the named module

Module Ownership

In general, if a declaration appears after the module declaration in a module unit, it is attached tothat module. If a declaration of an entity is attached to a named module, that entity can only be defined in that module. All declarations of such an entity must be attached to the same module. If a declaration is attached to a named module, and it

Defect Reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards. See full list on en.cppreference.com

Modules

What can a module contain?

Why do we need a module?

How to create a module in Python?

What are Python modules and Python packages?