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New, syllabus, 2020-21, Chapter 4, , Using, Python, Libraries, , Computer Science, Class XII ( As per CBSE Board), Visit : python.mykvs.in for regular updates

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Using, Python Libraries, Following terms must be clear while developing any python, project/program., 1. Module, 2. Package, 3. Library, 4. Framework, 1. Using Module -It is a file which contains python functions/global, variables/clases etc. It is just .py file which has python executable code /, statement.For example: Let’s create a file usermodule.py, def hello_message(user_name):, return “Hello " + name, Now we can import usermodule.py module either in python interpreter or, other py file., import usermodule, print usermodule.hello_message(“India"), Visit : python.mykvs.in for regular updates

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Using, Python Libraries, How to import modules in Python?, Python module can be accessed in any of following way., 1. Python import statement, import math, print(“2 to the power 3 is ", math.pow(2,3)), Just similar to math ,user defined module can be accessed using import, statement, 2. Import with renaming, import math as mt, print(“2 to the power 3 is ", mt.pow(2,3)), 3. Python from...import statement, from math import pow, print(“2 to the power 3 is ", pow(2,3)), 4. Import all names, from math import *, print(“2 to the power 3 is ", pow(2,3)), Visit : python.mykvs.in for regular updates

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Using, Python Libraries, 3. Using Library, It is a collection of various packages. Conceptually,There is no difference between, package and python library.In Python, a library is used loosely to describe a, collection of the core modules., ‘standard library‘ of Python language comes bundled with the core Python, distribution are collection of exact syntax, token and semantics of the Python, language . The python standard library lists down approx more than 200 such core, modules that form the core of Python., “Additional libraries” refer to those optional components that are commonly, included in Python distributions., The Python installers automatically adds the standard library and some additional, libraries., The additional library is generally provided as a collection of packages. To use such, additional library we have to use packaging tools like easyinstall or pip to install such, additional libraries., Visit : python.mykvs.in for regular updates

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Using, Python Libraries, 4. Using Framework, Framework is like a collection of various libraries which architects, some more component., For e.g. Django which has various in-built libraries like Auth, user,, database connector etc., , Visit : python.mykvs.in for regular updates