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1. Lambda and Import
‫إعداد‬:
‫م‬.‫محمد‬ ‫علي‬

2. objectives
 Lambda function
 Using Import keyword in Python

3. Lambda Function
 A lambda function is a small anonymous function.
 A lambda function can take any number of arguments, but can only have
one expression.
 Syntax
lambda arguments : expression
The expression is executed and the result is returned

4. Lambda Function
 Example:
x = lambda a : a + 10
print(x(5))
 Result
15

5. Lambda Function
 Example:
x = lambda a : a * 10
print(x(10))
 Result
100
 Example
x = lambda a, b : a * b
print(x(5, 6))
 Result
30

6. Why Use Lambda Functions?
 The power of lambda is better shown when you use them as an
anonymous function inside another function.
 Say We have a function definition that takes one argument, and that
argument will be multiplied with an unknown number
def myfunc(n):
return lambda a : a * n
mydoubler = myfunc(2)
print(mydoubler(11))
Result: 22

7. Import in python
 We use import keyword to import libraries to our code
 Syntax
import library_name;
 We can use one method from library using from keyword
from library import method1
 We can use a shortcuts for library to short it’s name
import library as lib
 If some library has many method we need we can use (*) to import all of it
from library import *

8. Import in python example
 Import os
 import matplotlib.pyplot as pit
 from sklearn import datasets
 from cryptography.fernet import *