python generator function explained code example
Example 1: python generator
def grepper_gen():
yield "add"
yield "grepper"
yield "answer"
grepper = grepper_gen()
next(grepper)
> add
next(grepper)
> grepper
next(grepper)
> answer
Example 2: yield value from csv file python
import csv
import numpy as np
def getData(filename1, filename2):
with open(filename1, "rb") as csv1, open(filename2, "rb") as csv2:
reader1 = csv.reader(csv1)
reader2 = csv.reader(csv2)
for row1, row2 in zip(reader1, reader2):
yield (np.array(row1, dtype=np.float),
np.array(row2, dtype=np.float))
for tup in getData("file1", "file2"):
print(tup)