Question

(1)Write a program in Python that reads an arbitrary-length file.

All lines that start with semicolons (;) or pound signs (#) should be ignored.

All empty lines must be ignored

Lines containing a string between square brackets are sections.

Within each section, lines may contain numbers or strings.

For each section, calculate the lowest, highest and modal (most common) number, and print it. In each section, also count all non-whitespace characters, and print that.

Example input:

; this is a demo file
[ section 1 ]
23
23
43
56
Hello, World!

# next section
[section 2]
19.4
4.19
We love Python!
Well,... mostly.

Your program must print the following output

section 1: lowest=23, highest=56, mode=23, characters=12
section 2: lowest=4.19, highest=19.4, mode=4.19,19.4, characters=28

Answer 1

def is_int(s):
try:
float(s)
return True
except ValueError:
return False

import re
a = open("input.txt","r")
b = a.readlines()

for i in b:
if(i[0] == ";" or i[0] == "#" or i[0] == " "):
b.remove(i)

trimmedListIndices = []
for i in range(len(b)):
if(b[i][0] == "["):
trimmedListIndices.append(i)
trimmedListIndices.append(len(b))

for i in range(len(trimmedListIndices)-1):
extractedArray = b[trimmedListIndices[i]:trimmedListIndices[i+1]]
  
s = str(extractedArray[0])
val = s.split('[', 1)[1].split(']')[0]
  
for j in range(1,len(extractedArray),1):
high = 0
low = 0
length = 0
int_arr = []
if(is_int(extractedArray[j])):
int_arr.append(extractedArray[j])
else:
length += len(extractedArray[i])
print("%s: lowest=%d, highest=%d,characters=%d",%(val, min(int_arr),max(int_arr),length))