How do I go about inserting a \"yield generator\" into this Python code? import

Question

How do I go about inserting a "yield generator" into this Python code?

import csv

NaN=float('NaN')

def parseNums(x):
try:
return float(x)
except:
return NaN

def Numify_Columns(Row,Columns):
for column in Columns:
Row[column]=parseNums(Row[column])   
  
count=0

total=0.0

COLUMNS=["HIGHDEG","INEXPFTE"]
FILE='MERGEDCONVERT.csv'
#Columns= # .... FILL in
data=open(FILE, 'rU')
#Create the reader
reader = csv.DictReader(data)
  
for Row in reader:
if Row["STABBR"] == "IL" and Row ["CITY"] == "Chicago":
Numify_Columns(Row,COLUMNS)
if Row["HIGHDEG"]>=2:
count=count+1
total=total+Row["INEXPFTE"]

Avg=total/count
print "The average is ", Avg   

data.close()

Explanation / Answer

What is Yield generator?

In the above example

for column in Columns:

def gen(n):

for column in Columns(n):

print(column) //generates the value before yielding value is reached

yield column //generator generates the next function till it reaches the yield value

print (column) //the function runs for the last time after reaching the yielding value

value=gen(n)

next(gen) //gets the next value for the iteration

Row[column]=parseNums(Row[column])

It executes the above function through yield generator.

FILE='MERGEDCONVERT.csv'

  File "<FILE='MERGEDCONVERT.csv'>",line 1, in <module>

next(value)

//stop iteration

Similarly,

for Row in reader:
if Row["STABBR"] == "IL" and Row ["CITY"] == "Chicago":
Numify_Columns(Row,COLUMNS)

def gen(n):

for Row in reader(n):

if (Row["STABBR"] == "IL" and Row ["CITY"] == "Chicago"):

print(Row)

yield row

print (Row)

value=gen()

next(gen)

if Row["HIGHDEG"]>=2:
count=count+1

def row(n):

While True:

if (row["HIGHDEG"]>=2):

yield count

count+=1

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