Generator Function in Python
A generator function in Python is defined like a normal function, but whenever it needs to generate a value, it does so with the yield keyword rather than return. If the body of a def contains yield, the function automatically becomes a Python generator function.
Create a Generator in Python
In Python, we can create a generator function by simply using the def keyword and the yield keyword. The generator has the following syntax in Python:
def function_name():
yield statement
Example:
In this example, we will create a simple generator that will yield three integers. Then we will print these integers by using Python for loop.
Python3
# A generator function that yields 1 for first time, # 2 second time and 3 third time def simpleGeneratorFun(): yield 1 yield 2 yield 3 # Driver code to check above generator function for value in simpleGeneratorFun(): print(value) |
Output:
1
2
3
Generators in Python
A Generator in Python is a function that returns an iterator using the Yield keyword. In this article, we will discuss how the generator function works in Python.