Students will be able to:

Content:

Explain the purpose of write $0$ functions

Explain the difference between writing and appending to a file

Process:

Write code that opens, writes to and closes a file

Prior Knowledge

Python concepts from Activities $1-13$

Enter and execute the following program:

def main$()$ :

lastName $=$ input $("$Enter last name: $")$

firstName $=$ input $("$Enter first name: $")$

studentID $=$ input $("$Bnter ID: $")$

infile hopen $("$stadentinfo$.$txt$",\text{'}$a$\text{'})$

inFile.write $("$Name: $"+$ firstName $+""+$ lastName$)$

inFil$.$ write $("$

StadentID: $"+$ studentID$)$

inFile. write $("\frac{?}{?}$

$")$

infile. close $()$

print$("$Done$!$ Data is saved in file: studentInfo.txt$")$

main$()$

What output appears on the screen?

b$.$ What does the program do$?$

c$.$ Locate the file studentInfo.txt on your computer. The file is stored in the same folder as the program. What is stored in the file?

d$.$ Change the argument $\text{'}a\text{'}$ to $\text{'}w\text{'}$ in the call to the open function. What is the purpose of the $"w"$ in the following line of code?

infile $=$ open $("$studentInfo$,$ txt$","$w$")$

e$.$ Did you create the file: studentInfo.txt separately from the program code?