GetCountForGivenStatus

Example Python program GetCountForGivenStatus.py Python version 3.x or newer. To check the Python version use:

python --version

Modules

import sys # its make ur program capable of accepting arguments & argv[] to read arguments
import sys

Methods

def getCountForGivenStatus(orders, status):
def getCountForStudInSocial(stud, social):
def getCountForStudInSocial(stud,social):

Code

Python example

#Using retail_db
orders = open("dataPath/retail_db/orders/part*").read().splitlines()
len(orders)
type(orders)
orders[0]    # '1,2013-07-25 00:00:00.0,11599,CLOSED'

orderMap = map(lambda rec: rec.split(",")[3], orders)

def getCountForGivenStatus(orders, status):
  ordersFiltered = filter(lambda rec: rec.split(",")[3] == status, orders)
  return len(ordersFiltered)

getCountForGivenStatus(orders,'COMPLETE')

---------------------
import sys      # its make ur program capable of accepting arguments & argv[] to read arguments
def getCountForStudInSocial(stud, social):
  count = 0
  for s in stud:
    if (social in s.split("\t")[7].split(",")):
      count = count +1
  return count  

stud = open("data/Path/stud.tsv").read().splitlines()
print("Running " +sys.argv[0])
print(getCountForStudInSocial(stud,sys.argv[1]))

# save the above code in a file like social.py then from the prompt run it this way
python social.py dataPath/retail_db/orders/part* Google

# Above code written with improvement
import sys
def getCountForStudInSocial(stud,social):
  counnt = 0
  for s in stud:
    if(social in s.split("\t")[7].split(",")):
      count = count + 1
  return count

stud = open(sys.argv[1]).read().splitlines()
print("Running " +sys.argv[0])
social = sys.argv[2]
print("Number of Students using " +social +" "+ str(getCountForStudInSocial(stud,social)))
# To execute

Useful Links

Articles: https://python-commandments.org/
Python shell: https://bsdnerds.org/learn-python/
Tutorial: https://pythonprogramminglanguage.com/