These are very simple exercises done with Python
Some of them I created myself and others taken from online courses
1. Very Basic function:
Write a program to prompt the user for hours and rate per hour using raw_input to compute gross pay. Award time-and-a-half for the hourly rate for all hours worked above 40 hours. Put the logic to do the computation of time-and-a-half in a function called computepay()and use the function to do the computation. The function should return a value. Use 45 hours and a rate of 10.50 per hour to test the program (the pay should be 498.75). You should use raw_input to read a string and float() to convert the string to a number. Do not worry about error checking the user input unless you want to - you can assume the user types numbers properly.
( I find this retarded, but may be useful is totally new)
My Solution: ( I had a better version but the autograder would not tak eit, so here is the answer they wanted)
def computepay(h,r):
over_rate = float(r)*1.5
over_hours = float(h)-40
hours = float(h)-over_hours
if over_hours == 0:
return hours*float(r)
else:
return hours*float(r)+over_hours*over_rate
print over_hours
h = raw_input("Please enter hours:")
r = raw_input("Please enter rate:")
print computepay(h,r)
2. Make a script that would ask and verify user inputed numbers repeatedly until the user enters 'done'
then print:
The Average
The Sum of all numbers
The number of inputs
The biggest and smallest numbers
My Solution:
#exs
#C:\python27\
#khofo
total = None
while True:
try:
num = raw_input("Please enter a number:")
if num == "done":
break
if total is None:
average = int(num)
total_numbers_entered = 0
total = 0
maxi = int(num)
mini = int(num)
total_numbers_entered = total_numbers_entered + 1
total = total + int(num)
average = total/total_numbers_entered
if int(num) > maxi:
maxi = int(num)
elif int(num) < mini:
mini = int(num)
except:
print "Please enter a number, when done type in 'done'"
print "Total:", total
print "Average:", average
print "number of inputs:", total_numbers_entered
print "Maximum is:", maxi
print "Minimum is:", mini
3. Make a script that converts Temperatures from F to C and vice versa: (inspired by John who was doing the same but with C)
#Khofo temp converter
#Functions
def convert():
print "Welcome tp khofo's temperature converter"
while True:
try:
temp = int(raw_input("Please choose 1. Celsius to Fahrenheit, or 2. Fahrenheit to Celsius: "))
if temp == 1:
cel = float(raw_input("Please enter the temperature in Celsius u wish to convert: "))
break
elif temp == 2:
fah = float(raw_input("Please enter the temperature in Fahrenheit u wish to convert: "))
break
else:
print "Error: Please retry"
except:
print "Error: Please retry"
if temp == 1:
converted_fah = (cel*float(9/5))+32
print ("%d C In fahrenheit is: %d F") % (cel, converted_fah)
elif temp == 2:
converted_cel = float(fah-32)*float(5/9)
print ("%d F in Celsius is: %d C") % (fah, converted_cel)
def _end_():
print "Thank you for"
retry = raw_input("To restart type 'restart' to exit press anything: ")
if retry == "restart":
convert()
else:
print "Bye"
def main():
convert()
_end_()
#End of Functions
#######################################
print main()
4. Simple Port Scanner
I did not write this code by myself I modified ad cleaned a script submitted by Christian25r
#C:\Python27\
#Created by: Christian25r
#Edited by: khofo
#Simple port scanner
#Imports
from socket import *
import re
######################
#Top
print "/////////////Simple port scanner////////////////"
print " "
print "/////////////by: Christian25r///////////////////"
print "-------------edited by: khofo-------------------"
print " "
#get user input and verify
while True:
address = raw_input("Please Enter Target IPv4 Address (or localhost):")
if re.match('^([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]).([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]).([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]).([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])$',address):
break
print "ERROR:Invalid IPv4 Address Format try again" #This is regex (regular expressions), it's a cooler way to try the IP,
#since mistakes in the format can be made, and a traceback is not cool
#Thanks again HTH
ip = gethostbyname(address)
print address,"has the IP:",ip
while True:
try:
min_port = int(raw_input("Port (min):"))
max_port = int(raw_input("Port (max):")) #added try to also verify the ports
break
except:
print "Invalid ports"
############################
#Functions
def scanner(ip,min_port, max_port):
count = 0
for ports in range(min_port, max_port):
try:
print "Scanning port :%d" % (ports,)
s = socket(AF_INET, SOCK_STREAM)
s.settimeout(3)
s.connect((ip, ports))
s.settimeout(3)
print "Port %d: is OPEN" % (ports,)
count = count + 1
except:
print "Port %d is CLOSED" % (ports,)
s.close()
print "Scanning finished !"
print ""
print "Found %d open ports" % (count)
###########################
#Executions
print "----------------------------------------------------"
print "Proceeding to scan..."
scanner(ip, min_port, max_port)
#End
print "----------------------------------------------------"
print "----------------------Done--------------------------"
raw_input("---------------Press 'Enter' to exit----------------")
print "Goodbye!"
I will add more during my quest to learn python
These are by no way a professional exercises or answers just a bunch of code I wrote myself (or not).
