SUBMISSION INSTRUCTIONS

Submit $1$ python file using the naming convention below $($replace JaneDoe with your first and

last name respectively$)$:

JaneDoe$4.$py

QUESTION

Download input.txt and store it in the same location as the script file.

Write a program that will go through the lines in input.txt:

a$.$ If a line begins with From $($use regular expressions to find the lines$)$

i$.$ Extract the email address, day, date, month, year, and time $($please note

that there should be a space after the word "From" to avoid logic errors$).$

ii$.$ Send the details to a csv file named output.csv with the help of csv

methods. This output.csv file should be stored in the same location as the

script file.

iii. The contents of your output.csv file should be identical to sample.csv

$($include the header row$).$

b$.$ If a line begins with From: $($use regular expressions to find the lines$)$

i$.$ Extract the email address $($please note that the colon is part of the word

because there are lines that begin with From without a colon at the end$).$

ii$.$ Keep track of how many times an email is sent from a particular address

with the help of a dictionary.

iii. Send your dictionary results to an output file called output.txt$.$ This

output.txt file should be stored in the same location as the script file.

iv$.$ The contents of your output.txt file should be identical to sample.txt

$($include the last row showing total email count$).$

Please note:

Write your program as a script $($i$.$e$.,$ include the if $\_\_$ name$\_\_=\text{'}\text{'}$:

block$).$

Use the input and output file names provided in the instructions.

Output files should be opened in write mode not append mode.

Don't forget to close any files you open.

Canvas shows the csv file as separated by tabs$,$ but you should use the default ;

delimiter.

Use newline $=\text{'}\text{'}$ to prevent blank rows from being inserted into your csv file $($refer

to the explanation of slide $17$ of the lecture notes$).$ It might appear to have no

effect on your PC$,$ but you should always write your scripts to accommodate

issues it might encounter on other OS systems.

I used $40$ spaces for the email fields $($e$.$g$.,$ file.write$($f $\{"$Email$"$: $40$ s $\}-$Count $ln\text{'}))$

to achieve uniform formatting. This is preferable to using tab spaces as tab spaces

might not be consistent across different systems $($Refer to your week $2$ string

notes for details on this$).$