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Modules: Difference between revisions
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In computing, a module is a unit of software that is designed to be independent, interchangeable, and contain everything necessary to provide some desired functionality. | In computing, a module is a unit of software that is designed to be independent, interchangeable, and contain everything necessary to provide some desired functionality. | ||
<ref>[https://en.wikipedia.org/wiki/Modular_programming Wikipedia, "Modular programming"]</ref> | <ref>[https://en.wikipedia.org/wiki/Modular_programming Wikipedia, "Modular programming"]</ref> | ||
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This page describes a few types of modules and cites their corresponding documentation pages. | This page describes a few types of modules and cites their corresponding documentation pages. | ||
== Disambiguation == | == Disambiguation == <!--T:2--> | ||
=== Lmod modules === | === Lmod modules === <!--T:3--> | ||
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Also called "environment modules", Lmod modules are used to alter your (shell) environment so as to enable you to use a particular software package, | Also called "environment modules", Lmod modules are used to alter your (shell) environment so as to enable you to use a particular software package, | ||
or to use a non-default version of certain common software packages such as compilers. See [[Using modules]]. | or to use a non-default version of certain common software packages such as compilers. See [[Using modules]]. | ||
=== Python modules === | === Python modules === <!--T:5--> | ||
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In Python, a module is file of code (usually Python code) which can be loaded with the <code>import ...</code> or <code>from ... import ...</code> statements to provide functionality. A Python package is a collection of Python modules; the terms "package" and "module" are frequently interchanged in casual use. | In Python, a module is file of code (usually Python code) which can be loaded with the <code>import ...</code> or <code>from ... import ...</code> statements to provide functionality. A Python package is a collection of Python modules; the terms "package" and "module" are frequently interchanged in casual use. | ||
<ref>[https://www.tutorialspoint.com/What-is-the-difference-between-a-python-module-and-a-python-package Tutorialspoint.com, "What is the difference between a python module and a python package?"]</ref> | <ref>[https://www.tutorialspoint.com/What-is-the-difference-between-a-python-module-and-a-python-package Tutorialspoint.com, "What is the difference between a python module and a python package?"]</ref> | ||
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Certain frequently-used Python modules such as "Numpy" can be imported if you first load the <code>scipy-stack</code> Lmod module at the shell level. | Certain frequently-used Python modules such as "Numpy" can be imported if you first load the <code>scipy-stack</code> Lmod module at the shell level. | ||
See [[Python#SciPy_stack|SciPy stack]] for details. | See [[Python#SciPy_stack|SciPy stack]] for details. | ||
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Compute Canada maintains a large collection of [[Python#Available_wheels|Python "wheels"]]. | Compute Canada maintains a large collection of [[Python#Available_wheels|Python "wheels"]]. | ||
These are modules which are pre-compiled to be compatible with the [[Standard software environments]]. | These are modules which are pre-compiled to be compatible with the [[Standard software environments]]. | ||
Before importing modules from the Compute Canada wheels, you should create a [[Python#Creating_and_using_a_virtual_environment|virtual environment]]. | Before importing modules from the Compute Canada wheels, you should create a [[Python#Creating_and_using_a_virtual_environment|virtual environment]]. | ||
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Python modules which are in neither the <code>scipy-stack</code> Lmod module or our wheels collection can be installed from the internet | Python modules which are in neither the <code>scipy-stack</code> Lmod module or our wheels collection can be installed from the internet | ||
as described at [[Installing packages|Python#Installing_packages]]. | as described at [[Installing packages|Python#Installing_packages]]. | ||
== Other related topics == | == Other related topics == <!--T:10--> | ||
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The main [[Available software]] page is a good starting point. Other related pages: | The main [[Available software]] page is a good starting point. Other related pages: | ||
* [[Standard software environments]]: as of April 1st, 2021, <code>StdEnv/2020</code> is the default collection of Lmod modules | * [[Standard software environments]]: as of April 1st, 2021, <code>StdEnv/2020</code> is the default collection of Lmod modules | ||
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* [[:Category:Software|Category ''Software'']]: a list of different software pages in this wiki, including commercial or licensed software | * [[:Category:Software|Category ''Software'']]: a list of different software pages in this wiki, including commercial or licensed software | ||
== Footnotes == | == Footnotes == <!--T:12--> | ||
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