def compute$\_$letter$\_$grade$($average$\_$score$)$:

if average$\_$score $90$ :

return $\text{'}A\text{'}$

elif average$\_$score $<mtext\; id="EditorElement\_10075667"></mtext><mn\; id="EditorElement\_10075668">9</mn><mn\; id="EditorElement\_10075669">0</mn>$:

return $\text{'}B\text{'}$

elif $70$ average$\_$score $<mtext\; id="EditorElement\_10075585"></mtext><mn\; id="EditorElement\_10075586">8</mn><mn\; id="EditorElement\_10075587">0</mn>$ :

return $\text{'}$C$\text{'}$

elif $60$ average$\_$score $<mtext\; id="EditorElement\_10075540"></mtext><mn\; id="EditorElement\_10075541">7</mn><mn\; id="EditorElement\_10075542">0</mn>$ :

return $\text{'}D\text{'}$

else:

return $\text{'}F\text{'}$

def main$()$:

input$\_$file$\_$name $=$ input$("$Enter the name of the grade information file: $")$

# Read grade information from the file

with open$($input$\_$file$\_$name, $\text{'}$r$\text{'})$ as file:

lines $=$ file. $*$ re$\backslash$bar $($a$)$ lines $)$

# Process each line to extract student information

exam$\_$scores $=[]$

students $=[]$

for line in lines:

data $=$ line.strip$().$split$(\text{'}\backslash$t$\text{'})$

last$\_$name $=$ data$[0]$

first$\_$name $=$ data$[1]$

scores $=[$int$($score$)$ for score in data$[2$:$]]$

students.append$(($last$\_$name, first$\_$name, scores$))$

exam$\_$scores.extend$($scores$)$

# Compute average exam score for each student

student$\_$grades $=[]$

for student in students:

average$\_$score $=$ sum$($student$[2])\frac{?}{?}$ len$($student$[2])$

letter$\_$grade $=$ compute$\_$letter$\_$grade$($average$\_$score$)$

student$\_$grades.append$(($ student$[0],$ student$[1],$ student$[2],$ letter$\_$grade$))$

# Compute average score for each exam

num$\_$exams $=$ len$($students$[0][2])$

exam$\_$averages exam$\_$scores$[$i::num$\_$exams$])/$ len$($exam$\_$scores$[$i::num$\_$exams$])$ for i in range$($num$\_$exams$)]$

# Write student information and averages to output file

with open$(\text{'}$report$.$txt$\text{'},\text{'}$w$\text{'})$ as output$\_$file:

for student in student$\_$grades:

for score in student$[2]$:

output$\_$file.write$($f$"\{$score how do i fix this white space error?

this is my current code.

def compute$\_$letter$\_$grade$($average$\_$score$)$:

if average$\_$score $>=90$:

return $\text{'}$A$\text{'}$

elif average$\_$score $<mtext\; id="EditorElement\_10072717"></mtext><mn\; id="EditorElement\_10072718">9</mn><mn\; id="EditorElement\_10072719">0</mn>$:

return $\text{'}$B$\text{'}$

elif average$\_$score $<mtext\; id="EditorElement\_10072771"></mtext><mn\; id="EditorElement\_10072772">8</mn><mn\; id="EditorElement\_10072773">0</mn>$:

return $\text{'}$C$\text{'}$

elif average$\_$score $<mtext\; id="EditorElement\_10072825"></mtext><mn\; id="EditorElement\_10072826">7</mn><mn\; id="EditorElement\_10072827">0</mn>$:

return $\text{'}$D$\text{'}$

else:

return $\text{'}$F$\text{'}$

def main$()$:

input$\_$file$\_$name $=$ input$("$Enter the name of the grade information file: $")$

# Read grade information from the file

with open$($input$\_$file$\_$name, $\text{'}$r$\text{'})$ as file:

lines $=$ file.readlines$()$

# Process each line to extract student information

exam$\_$scores $=[]$

students $=[]$

for line in lines:

data $=$ line.strip$().$split$(\text{'}\backslash$t$\text{'})$

last$\_$name $=$ data$[0]$

first$\_$name $=$ data$[1]$

scores $=[$int$($score$)$ for score in data$[2$:$]]$

students.append$(($last$\_$name, first$\_$name, scores$))$

exam$\_$scores.extend$($scores$)$

# Compute average exam score for each student

student$\_$grades $=[]$

for student in students:

average$\_$score $=$ sum$($student$[2])/$ len$($student$[2])$

letter$\_$grade $=$ compute$\_$letter$\_$grade$($average$\_$score$)$

student$\_$grades.append$(($student$[0],$ student$[1],$ student$[2],$ letter$\_$grade$))$

# Compute average score for each exam

num$\_$exams $=$ len$($students$[0][2])$

exam$\_$averages $=[$sum$($exam$\_$scores$[$i::num$\_$exams$])/$ len$($exam$\_$scores$[$i::num$\_$exams$])$ for i in range$($num$\_$exams$)]$

# Write student information and averages to output file

with open$(\text{'}$report$.$txt$\text{'},\text{'}$w$\text{'})$ as output$\_$file:

for student in student$\_$grades:

output$\_$file.write$($f$"\{$student$[0]\}\backslash$t$\{$student$[1]\}\backslash$t$")$

for score in student$[2]$:

output$\_$file.write$($f$"\{$score$\}\backslash$t$")$

output$\_$file.write$($f$"\{$student$[3]\}$

$")$

output$\_$file.write$("$Averages:$\backslash$t$")$

for i$,$ avg$\_$score in enumerate$($exam$\_$averages, start$=1)$:

output$\_$file.write$($f$"$exam $\{$i$\}$: $\{$avg$\_$score:$\mathrm{.}2$f$\},")$

print$("$Report generated successfully."$)$

if $\_\_$name$\_\_=="\_\_$main$\_\_"$:

main$()$