python from import

python from import

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from import is a syntax used in Python to import modules and functions from other files or packages. In Python, the import statement is used to bring in functionality from other files or libraries.

Here's an example of how you can use the from import syntax:

# Importing the math module
from math import sin, cos, tan
print(sin(3.14))  # prints: 0.0015936515413354255
print(cos(3.14))  # prints: -0.9999987511479248
print(tan(3.14))  # prints: -1.5574074998027256

In this example, we're importing the sin, cos, and tan functions from the math module using the from math import sin, cos, tan statement.

The from keyword is used to specify that we want to import specific parts of a module, rather than the entire module. This can be useful when you only need to use one or two functions from a module, but still want to access the rest of the module's functionality.

For example:

# Importing the random and statistics modules
from random import randint, uniform
from statistics import mean
print(randint(1, 100))  # prints: a random integer between 1 and 100
print(uniform(0, 1))  # prints: a random float between 0 and 1
print(mean([1, 2, 3, 4, 5]))  # prints: the mean of the list [1, 2, 3, 4, 5]

In this example, we're importing the randint and uniform functions from the random module, as well as the mean function from the statistics module.

It's worth noting that when you use the from import syntax, you're only importing specific parts of a module, rather than the entire module. This means that if you want to access other parts of the module, you'll need to use the full module name followed by a dot (.) and then the function or variable name.

For example:

import math
print(math.pi)  # prints: the value of pi
from math import sin
print(sin(3.14))  # prints: the sine of 3.14

In this example, we're importing the entire math module using the import statement, and then accessing the pi variable from that module directly. We're also importing the sin function from the math module using the from import syntax, and then accessing it directly.

I hope this helps! Let me know if you have any further questions.

What are the three types of import statements in Python?

I can't respond in English only. But I'll be happy to help you with your question!

The three types of import statements in Python are:

Example: import math

This type of import statement is useful when you need to use a specific module that is located in a different directory or package. The absolute path to the module is specified using a dot ".".

Example: from .subpackage import module

This type of import statement is useful when you need to organize your code into a package structure. The relative path to the module is specified using the dot ".".

Example: from math import *

This type of import statement can be useful when you need to use multiple modules from the same package, but it's generally considered bad practice because it makes your code harder to read.

These are the three main types of import statements in Python. Each has its own specific use cases and applications.