Develop Reference

How to add numbers inside of a program that reads data?

I have another program which is meant to get information and then write it into a separate text doc. For this program, I want to take the data on the text doc and format it into an output. I have managed to get the formatting correct as well as the loop to read the information correctly but am struggling to get three more variables: 1) Find the total amount due between all employees added together. 2) Find the total amount of hours all the employees worked added. 3) Find the average hours worked per week. I cannot figure out how to get these variables as the information from the text doc must be in string format (to my knowledge), and i need them to be in float to do the calculations.
Thanks for any help in advance!
def main():
employeeCount = 0
infile = open("BillingTEST.txt","r")
print("Employee Name\t\t" +
"Rate\t" +
"Week 1\t" +
"Week 2\t" +
"Week 3\t" +
"Week 4\t" +
"Hours\t" + "Total")
name = readAsString(infile)
while name != "":
employeeCount += 1
rate = readAsFloat(infile)
week1 = readAsFloat(infile)
week2 = readAsFloat(infile)
week3 = readAsFloat(infile)
week4 = readAsFloat(infile)
empHours = week1+week2+week3+week4
empMoney = empHours * rate
print(name + "\t\t\t$" +
str(rate)+ "\t" +
str(week1)+"\t" +
str(week2)+"\t" +
str(week3)+"\t" +
str(week4)+"\t" +
str(empHours)+"\t" +
str(empMoney))
name = readAsString(infile)
print("\nTotal Billable Due:\t"+
"\nTotal Billable Hours:"+
"\nAverage Billable Hours:\t"+
"\nEmployee Count: ",employeeCount)
def readAsString(file):
return file.readline().rstrip("\n")
def readAsFloat(file):
return float(file.readline().rstrip("n"))
main()

How do you replace segments in a line using fileinput

I am creating a program for counting coins and I want to create a mechanism which essentially scans a specifically written text file and is able to calculate whether it has been falsely counted but also will replace the ending segment of the line with either Y for Yes or N for No.
The txt file reads as such:
Abena,5p,325.00,Y
Malcolm,1p,3356.00,Y
Jane,£2,120.00,Y
Andy,£1,166.25,N
Sandip,50p,160.00,Y
Liz,20p,250.00,Y
Andy,20p,250.00,Y
Andy,50p,160.00,Y
Jane,£1,183.75,N
Liz,£,179.0,N
Liz,50p,170.0,N
Jane,50p,160.0,Y
Sandip,£1,183.0,N
Jane,£2,132.0,N
Abena,1p,3356.0,N
Andy,2p,250.0,N
Abena,£1,175.0,Y
Malcolm,50p,160.0,Y
Malcolm,£2,175.0,N
Malcolm,£1,175.0,Y
Malcolm,1p,356.0,Y
Liz,20p,250.0,Y
Jane,£2,120.0,Y
Jane,50p,160.0,Y
Andy,£1,175.0,Y
Abena,1p,359.56,N
Andy,5p,328.5,N
Andy,£2,108.0,N
Malcolm,£2,12.0,N
as you can see every line is split into 4 segments, I want the fileinput to be able to replace the fourth segment within the specified line.
My program (all the relevant things to see right now) is as follows:
class Volunteer:
def __init__(self, name, coin_type, weight_of_bag, true_count):
self.name = name
self.coin_type = coin_type # a function allowing me to class the data
self.weight_of_bag = weight_of_bag
self.true_count = true_count
just a simple object system to make things easier for later
with open("CoinCount.txt", "r", encoding="'utf-8'") as csvfile:
volunteers = []
for line in csvfile:
volunteers.append(Volunteer(*line.strip().split(',')))
just to create a list as well as an object for easier calculations
def runscan():
with open("CoinCount.txt", "r+", encoding='utf-8') as csvfile:
num_lines = 0
for line in csvfile:
num_lines = num_lines + 1
i = 0
while i < num_lines:
ct = (volunteers[i].coin_type)
wob = float(volunteers[i].weight_of_bag)
if ct == ("£2" or "2"):
accurate_weight = float(12.0)
limit = 10
bag_value = 10 * 12
elif ct == ("£1" or "1"):
accurate_weight = float(8.75)
limit = 20
bag_value = 20 * 8.75
elif ct == "50p":
accurate_weight = float(8)
limit = 20
bag_value = 20 * 8
elif ct == "20p":
accurate_weight = float(5)
limit = 50
bag_value = 5 * 50
elif ct == "10p":
accurate_weight = float(6.5)
limit = 50
bag_value = 6.5 * 50
elif ct == "5p":
accurate_weight = float(3.25)
limit = 100
bag_value = 3.25 * 100
elif ct == "2p":
accurate_weight = float(7.12)
limit = 50
bag_value = 50 * 7.12
elif ct == "1p":
accurate_weight = float(3.56)
limit = 100
bag_value = 3.56 * 100
number_of_bags = wob / bag_value
print("Number of bags on this is" + str(number_of_bags))
import fileinput
line = line[i]
if number_of_bags.is_integer():
with fileinput.FileInput('CoinCount.txt',inplace=True) as fileobj:
for line in fileobj:
x = line.split(',')
for w, word in enumerate(x):
if w == 3 and word == 'N':
print(line[i].replace('N', 'Y'), end='')
i = i + 1
else:
i = i + 1
else:
with fileinput.FileInput('CoinCount.txt',inplace=True) as fileobj:
for line in fileobj:
x = line.split(',')
for w, word in enumerate(x):
if w == 3 and word == 'Y':
print(line[i].replace('Y', 'N'), end='')
i = i + 1
else:
i = i + 1
and finally the thing Im having issues with, the scan function.
the issue is specifically within the last few lines of code here (the replacement part):
import fileinput
if number_of_bags.is_integer():
target, replacement = ('N', 'Y')
else:
target, replacement = ('Y', 'N')
with fileinput.FileInput('CoinCount.txt', inplace=True) as fileobj:
for i, line in enumerate(fileobj):
words = line.rstrip().split(',')
if line.words[3] == target:
line.words[3] = replacement
print(','.join(words))
i = i + 1
f = fileobj.lineno() # Number of lines processed.
print(f'Done, {f} lines processed')
I basically have created a function which goes down each line and calculates the next line down until there aren't anymore lines, the issue with the last part is that I am unable to replace the actual txt file, If I were to run this program right now the result would be a completely blank page. I know that the fix is most likely a simple but tricky discovery but It is really bothering me as this is all that is needed for my program to be complete.
I understand the majority of the coding used but I am very new to fileinput, I want to be able to go from each line and replace the final segment if the segments name (i.e "Y" or "N") given is inaccurate to the actual legitimate segment name as Y is for true and N is for false. Please help, I tried to make sure this question was as easily understandable as possible, please make your example relatable to my program

As far as I understood, the problem is whether the calculation of the weight is correct or not. So just create another file instead of using fileinput. Do you really need it ?
test.csv
Abena,5p,325.00,Y
Malcolm,1p,3356.00,Y
Read the csv and assign some header names
Remove the last column, we don't care if it's correct or not, we will calculate the result anyways
Gather your calculation function in one method, we will apply this to every row
Apply function to every row, if it's correct write "Y" else write "N"
Truncate the whole file and write it over
import pandas as pd
with open("test.csv", "r+") as f:
df = pd.read_csv(f, names=["name", "coin", "weight", "res"])
del df["res"]
def calculate(row):
if row["coin"] == "5p":
return "Y" if 3.25 * 100 == row["weight"] else "N"
elif row["coin"] == "1p":
return "Y" if 3.56 * 100 == row["weight"] else "N"
df["res"] = df.apply(lambda row: calculate(row), axis=1)
f.seek(0)
f.truncate()
df.to_csv(f, index=False, header=False)
test.csv
Abena,5p,325.0,Y
Malcolm,1p,3356.0,N

Extracting three kinds of info on the same line with Python

I have written a short script to extract certain data from a long text-file in Python. This the code.
fname = raw_input("Enter file name: ")
if ( len(fname) < 1 ) : fname = 'test.v2'
rdf = open(fname)
import re
totalmoney = 0
totallent = 0
totaldebt = 0
for line in rdf:
line = line.rstrip()
money = re.findall('.*money=([0-9]*)', line)
#lent = re.findall('.*money_lent=([0-9]*)', line)
#debt = re.findall('.*debt=([0-9]*)', line)
try:
money = int(money[0])
totalmoney = totalmoney + money
#lent = int(lent[0])
#totallent = totallent + lent
#debt = int(debt[0])
#totaldebt = totaldebt + debt
except: continue
print 'money total:',totalmoney
#print 'lent total:',totallent
#print 'debt total:',totaldebt
As you can see, the second and third meaningful data extractor lines are currently inactive (#), that is because when they are on it finds the value as zero, which I know is incorrect, because when I run them separately, they find a real value. I suspect that for some reason it cannot run all the three lines in the same loop, but I do not know why.
Could you please tell me how to extract three kinds of info from the same line?
Thanks.

Swallowing exceptions is not a good practice - you may never find out the reason why things go wrong. It is better not to swallow exceptions at all and do it right. This should work.
fname = raw_input("Enter file name: ")
if ( len(fname) < 1 ):
fname = 'test.v2'
rdf = open(fname)
import re
totalmoney = 0
totallent = 0
totaldebt = 0
for line in rdf:
line = line.rstrip()
money = re.search('money=([0-9]*)', line)
lent = re.search('money_lent=([0-9]*)', line)
debt = re.search('debt=([0-9]*)', line)
if money:
totalmoney = totalmoney + int(money.group(1))
if lent:
totallent = totallent + int(lent.group(1))
if debt:
totaldebt = totaldebt + int(debt.group(1))
print('money total:',totalmoney)
print('lent total:',totallent)
print('debt total:',totaldebt)
Have fun playing Victoria 2 - I myself wasted a lot of time playing that game :)

What is wrong with this code during enumeration

import datetime
with open("fine.txt","r") as f, open("fine1.txt","a") as fine1:
lines = f.read().split("\n")
for i in range(2):
var = input("reg : ") # registration number(reg_num)
enter = input('Time entered camera 1(24hrs)in the format HH:MM:SS: ')
ext = input('Time enterd camera 2 (24hrs)in the format HH:MM:SS : ')
total_time = '%H:%M:%S'
enter_time = datetime.datetime.strptime(enter, total_time)
ext_time = datetime.datetime.strptime(ext, total_time)
if enter_time > ext_time:
ext_time += datetime.timedelta(hours=24)
t_diff = ext_time - enter_time
time = t_diff.total_seconds() / 3600
speed = 1 / time
reg = var[0:1].isalpha() and var[2:3].isdigit() and var[4].isspace() and var[5:7].isalpha() and var.isupper()
if reg == True:
for i, line in enumerate(lines):
if var in line:
num = int("{}".format(i))
var = f.read()
name = (var[num]) #the problem
print(name)
address = (var[num + 0])
if speed > 70:
print("ovrspeeding", (var[num + 0]))
fine1.write(name+address+speed+"\n")
The whole code had to inputted, otherwise you will not understand what i am trying to do.
fine.txt is a file that has already been made and looks like:
reg_num1 aaaaaaaaaaaaaaaaaaa
reg_num2 bbbbbbbbbbbbbbbbbbb
reg_num3 ccccccccccccccccccc
this code takes in inputs of the registration number(e.g. AA01 SSS) and 2 time formats (which will later be used to calculate the speed). i want this code to find the line in fine.txt that have the registration number i inputted and if that vehicle is overspeeding(speed >70mph)the whole line needs to be appended into the file fine1.txt.
the problem is that when i run the code the error massage states that:
name = (var[num])
IndexError: string index out of range
i dont what this means, so can you help me with this.

wrap all lines that are longer than line length

I am writing a program that limits each line to a certain length.
this is what i got so far, i am almost done but i still need to cut each line, but i cant figure it out.
def main():
filename = input("Please enter the name of the file to be used: ")
openFile = open(filename, 'r+')
file = openFile.read()
lLength = int(input("enter a number between 10 & 20: "))
while (lLength < 10) or (lLength > 20) :
print("Invalid input, please try again...")
lLength = int(input("enter a number between 10 & 20: "))
wr = textwrap.TextWrapper()
wraped = wr.wrap(file)
print("Here is your output formated to a max of", lLength, "characters per line: ")
wr.width = lLength
wr.expand_tabs = True
for lines in wraped:
print(lines)
Edit:
def main():
filename = input("Please enter the name of the file to be used: ")
openFile = open(filename, 'r')
file = openFile.read()
lLength = int(input("enter a number between 10 & 20: "))
while (lLength < 10) or (lLength > 20) :
print("Invalid input, please try again...")
lLength = int(input("enter a number between 10 & 20: "))
if (lLength > 10) or (lLength < 20):
print("\nYour file contains the following text: \n" + file)
#=========================================================================
wr = textwrap.TextWrapper(width=lLength)
wraped = wr.wrap(file)
print("\n\nHere is your output formated to a max of", lLength, "characters per line: ")
for lines in wraped:
print(lines)
main()
an example of what the output SHOULD be is this.
If the file specified contains this text:
hgytuinghdt #here the length is 11
ughtnjuiknshfyth #here the length is 16
nmjhkaiolgytuhngjuin #here the length is 20
and the lLength is specified to 15 then this should print out:
hgytuinghdt
ughtnjuiknshfyt
h
nmjhkaiolgytuhng
juin

wr = textwrap.TextWrapper() should be wr = textwrap.TextWrapper(width=length, expand_tabs=True)
You should then remove wr.width = lLength and wr.expand_tabs = True. They should have been run before wr.wrap() was called, but since one can set it using keyword arguments in the TextWrapper constructor as shown at the very top, they can be removed.
PS: for lines in wraped: print(lines) can be replaced with print(wraped) if you use TextWrapper.fill.

Try this:
line = 'nmjhkaiolgytuhngjuin'
n = 5 # set the width here
a = [line[i:i+n] for i in range(0, len(line), n)]
print ("\n".join(a))

This might help you:
def wrap(f,n):
fi=open(f,"w+")
rl=fi.readlines()
for i in range(0,len(rl)):
if len(rl[i]) > n:
fi.write(rl[i][:n] +"\n" + rl[i][n:])
fi.Close()
else:
fi.write(rl[i])
fi.close()