Python for Data Science: Chapter 2: Functions and Files

Python Importing Libraries

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There are many variables and functions present in the module. We can use them by using the import statement.

Importing Libraries

• There are many variables and functions present in the module. We can use them by using the import statement.

• When we simply use import statement, then we can use any variable or function present within that modulę.

• When we use from...import statement, then we can use only selected variables or functions present within that module.

For example

from math import sqrt

print("Square root (25)= ",sqrt(25))

Output

Square root (25)= 5.0

• If we want to use some different name for the standard function present in the module, then we can use as keyword. Following code illustrates this ‒

moduleProg1.py

from math import sqrt as my_sq_root

print("Square root(25)= ",my_sq_root(25))

Output

Square root(25)= 5.0

>>>

Python for Data Science: Chapter 2: Functions and Files : Tag: Computer Programming, Python, Data Science : - Python Importing Libraries

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Python for Data Science: Chapter 2: Functions and Files

Functions in Python: Basic Conceptons

Python: Defining a Function

Python: Function Calling

Python: Passing Arguments in Function

Python: Return Values in Function

Python: Passing a List in Function

Python: Local and Global Variable

Python: Creating and using a Class

Python: Working with Strings

Python Programming examples based on string

Python: Working with Files

Python: Exceptions

Python Libraries

Python Importing Libraries

Python Functions and Files: Two Marks Important Questions and Answers - Python for Data Science

Python Functions and Files: Important Part B Questions - Python for Data Science

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