7.2 Write a program that prompts for a file name, then opens that file and reads through the file, looking for lines of the form: X-DSPAM-Confidence: 0.8475 Count these lines and extract the floating point values from each of the lines and compute the average of those values and produce an output as shown below. Do not use the sum() function or …

gistfile1.txt

# Use the file name mbox-short.txt as the file name
fname = raw_input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
    if not line.startswith("X-DSPAM-Confidence:") : continue
    t=line.find("0")
    number= float(line[t:])
    count = count + 1
    total = total + number

average = total/count
print "Average spam confidence:",average

Use the file name mbox-short.txt as the file name

fname = input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
if not line.startswith("X-DSPAM-Confidence:") : continue
t = line.find("0")
number = float(line[t:])
count = count + 1
total = total + number

average = total/count
print("Average spam confidence:" , average )

count = 0
total = 0

name = input("Enter file name: ")
txt_file = open(name)
for line in txt_file:

print(line) -- if we print until this we will have full file

if line.startswith("X-DSPAM-Confidence:"):

print(line) -- then we only need line start with "X-DSPAM-Confidence:" , in this why we use if condition

    a = line.find("0")       

print (a) -- now we fine the position of 0 in line (remember we only need number to count and for Ave)

    b = len(line)

print(b) -- this with help me to fine the length of the line

    c = float(line[a : b])

print(c) -- Now we have number to count and ave

    total = total + c
    count = count + 1

until we have total and total number of line (count)

ave = total/count
print("Average spam confidence:", ave)

if we use want to learn go line by line and try to under stand

I solved abit diffrent it worked in python 3.10.8 but not on the class online tools :

`fname= input("Enter the file name: ")
if len(fname) < 1:
fname = ("mbox-short.txt")
fh = open (fname)
new_line = []
for line in fh :
if not line.startswith("X-DSPAM-Confidence:"):
continue
# print(line)
line_result = line.rstrip().removeprefix("X-DSPAM-Confidence:")
new_line.append(line_result)

    Sum_all_line  = 0
    for i in range(len(new_line)):
        new_line[i] = float(new_line[i])
        Sum_all_line = Sum_all_line +new_line[i]

print(Sum_all_line)
total_avarage = Sum_all_line / len( new_line)

print(new_line)

print(total_avarage)
print("Done")`

In python 3 use the below code

count = 0
total = 0

name = input("Enter file name: ")
txt_file = open(name)
for line in txt_file:
if line.startswith("X-DSPAM-Confidence:"):
a = line.find(" ") + 1 # Find the first space character
b = line.find(" ", a) # Find the second space character
c = float(line[a:b]) # Extract the float value between the two spaces
total += c
count += 1
ave = total/count
print("Average spam confidence:", ave)

you can do it like this

#Use the file name mbox-short.txt as the file name

fname = input("Enter file name: ")
fh = open(fname)
total = 0
for line in fh:
if not line.startswith("X-DSPAM-Confidence:"):
continue
x = line.find(":")
y = float(line[x+1 : ])
total = total + y
res = total / len(line)
print("Average spam confidence:", res)

hello everyone
please help me with this error

Use the file name mbox-short.txt as the file name

fname = input("Enter file name: ")

fh = open(fname)

count=0
shum=0

for line in fh:
if not line.startswith("X-DSPAM-Confidence:"):
continue

#print(line)
#print(line.find('0'))

count = count+1

 
linewa = (line[20:])

shum = shum+float(linewa)

#print(count,shum)

print('Average spam confidence:',shum/count)

fn = input("Enter file name: ")
fh = open(fn)

lines = 0
counts = 0

for x in fh:
if x.startswith("X-DSPAM-Confidence:"):
counts += float(x.replace("X-DSPAM-Confidence:", "").lstrip())
lines+=1

print("Average spam confidence:" , counts/lines)

fname = input("Enter file name: ")
fh = open(fname)
linecount=0
num=0
for line in fh:
if not line.startswith("X-DSPAM-Confidence:"):
continue
sub=":"
indice=line.index(sub)
conf=float(line[indice+2:])
linecount=linecount+1
num=num+conf
avg=num/linecount
print("Average spam confidence:",avg)

Excellent

…

On Thu, Jun 22, 2023, 05:28 asmautino ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ fname = input("Enter file name: ") fh = open(fname) linecount=0 num=0 for line in fh: if not line.startswith("X-DSPAM-Confidence:"): continue sub=":" indice=line.index(sub) conf=float(line[indice+2:]) linecount=linecount+1 num=num+conf avg=num/linecount print("Average spam confidence:",avg) — Reply to this email directly, view it on GitHub <https://gist.github.com/zcakzwa/19a448416b9e7da3dc2096da72690914#gistcomment-4606680> or unsubscribe <https://github.com/notifications/unsubscribe-auth/A6D2TTLKYWFHUB2XDC5POFLXMORCXBFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFQKSXMYLMOVS2I5DSOVS2I3TBNVS3W5DIOJSWCZC7OBQXE5DJMNUXAYLOORPWCY3UNF3GS5DZVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVAZTONBVGY3TGN5HORZGSZ3HMVZKMY3SMVQXIZI> . You are receiving this email because you commented on the thread. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

fname = input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
number_float = 0
for line in fh:
xli = line.find("X-DSPAM-Confidence:")

if xli == 0:
    ary = line.split(': ')

    number_float = float(ary[1]);
    count = count + 1
    total = total + number_float

avg = total / count
print ("Average spam confidence:", avg)

hello everyone please help me with this error

you missed continue (if line)

fname = raw_input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
if not line.startswith("X-DSPAM-Confidence:") : continue
t=line.find("0")
number= float(line[t:])
count = count + 1
total = total + number

average = total/count

print ("Average spam confidence:",average)fname = raw_input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
if not line.startswith("X-DSPAM-Confidence:") : continue
t=line.find("0")
number= float(line[t:])
count = count + 1
total = total + number

average = total/count

print ("Average spam confidence:",average)

Use the file name mbox-short.txt as the file name

file_name = input("Enter file name: ")

try:
file_handle = open(file_name,"r")
except:
print("File Does not Exist!")

count = 0
total_num = 0

for line in file_handle:

if not line.startswith("X-DSPAM-Confidence:"):
    continue
#print(line)

count +=1
#print(count)

space_position = line.find(" ")
#print(space_position)

num = float(line[space_position:])
#print(num)

total_num = total_num + num
#print(total_num)

print("Average spam confidence:", total_num/count)

Use the file name mbox-short.txt as the file name

fname = input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
if not line.startswith("X-DSPAM-Confidence:"):continue
c=float((line[line.find("0"):]))

count = count + 1
total = total + c

print("Average spam confidence:", total/count)

guys use this:
fname = input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
if line.startswith("X-DSPAM-Confidence:"):
t = line.find('0')
number = float(line[t:])
count = count + 1
total = total + number
else:
continue
average = total/count
print("Average spam confidence:", average)