سلام عليكم يا ريت شرح كود سكريبت بايثون
#!/usr/bin/env python3
import json
import locale
import sys
import emails
import os
import reports
def load_data(filename):
"""Loads the contents of filename as a JSON file."""
with open(filename) as json_file:
data = json.load(json_file)
return data
def format_car(car):
"""Given a car dictionary, returns a nicely formatted name."""
return "{} {} ({})".format(
car["car_make"], car["car_model"], car["car_year"])
car_sales ={}
def calculate_sales_per_year(car, total_sales):
if(car["car_year"] in car_sales):
car_sales[car["car_year"]]=car_sales[car["car_year"]]+total_sales
else:
car_sales[car["car_year"]]=total_sales
def returns_most_popular_car_year():
key=''
value=0
for k in car_sales:
if(car_sales[k]>value):
key = k
value = car_sales[k]
return "The most popular year was "+str(key)+" with "+str(value)+" sales."
def process_data(data):
"""Analyzes the data, looking for maximums.
Returns a list of lines that summarize the information.
"""
locale.setlocale(locale.LC_ALL, 'en_US.UTF8')
max_revenue = {"revenue": 0}
max_sales = {"total_sales": 0}
for item in data:
# Calculate the revenue generated by this model (price * total_sales)
# We need to convert the price from "$1234.56" to 1234.56
item_price = locale.atof(item["price"].strip("$"))
item_revenue = item["total_sales"] * item_price
if item_revenue > max_revenue["revenue"]:
item["revenue"] = item_revenue
max_revenue = item
# TODO: also handle max sales
if item["total_sales"] > max_sales["total_sales"]:
max_sales = item
# TODO: also handle most popular car_year
calculate_sales_per_year(item["car"],item["total_sales"])
summary = [
"The {} generated the most revenue: ${}".format(
format_car(max_revenue["car"]), max_revenue["revenue"]),
"The {} had the most sales: {}".format(
format_car(max_sales["car"]), max_sales["total_sales"]),
returns_most_popular_car_year()
]
return summary
def cars_dict_to_table(car_data):
"""Turns the data in car_data into a list of lists."""
table_data = [["ID", "Car", "Price", "Total Sales"]]
for item in car_data:
table_data.append([item["id"], format_car(item["car"]), item["price"], item["total_sales"]])
return table_data
def pdf_generator(summary,data):
table_data=cars_dict_to_table(data)
result=''
for line in summary:
result=result+line+'<br/>'
reports.generate("/tmp/reportCars.pdf", "Sales Summary for last month",result,table_data )
def email_send_report(summary):
sender = "automation@example.com"
receiver = "{}@example.com".format(os.environ.get('USER'))
subject = "Sales summary for last month"
body = '\n'.join(summary)
message = emails.generate(sender, receiver, subject, body, "/tmp/reportCars.pdf")
emails.send(message)
def main(argv):
"""Process the JSON data and generate a full report out of it."""
data = load_data("/home/student/car_sales.json")
summary = process_data(data)
# TODO: turn this into a PDF report
pdf_generator(summary,data)
# TODO: send the PDF report as an email attachment
email_send_report(summary)
if __name__ == "__main__":
main(sys.argv)