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script_python3

basic_to_high

copy_past_twofiles.py

from sys import argv
from os.path import exists


script, from_file, to_file = argv

print(f"Copying from {from_file} to {to_file}")

# we could to these two on one line, how?
in_file = open(from_file)
in_data = in_file.read()

print(f"The input file is {len(in_data)} bytes long")

print(f"Does the output file exist? {exists(to_file)}")
print("Read, hit RETURN  to continue, CTRL+C  to abort")
input()

out_file = open(to_file, 'w')
out_file.write(in_data)

print("Alright, all done.")

out_file.close()
in_file.close()

def_fun_script.py

# This ine is like your script with argv
def print_two(*args):
    arg1, arg2 = args
    print(f"arg1: {arg1}, arg2 : {arg2}")

# Ok, that *args is achully pointless, we can just do this
def print_two_again(arg1, arg2):
    print(f"arg1: {arg1}, arg2: {arg2}")

# This just takes one argument
def print_one(arg1):
    print(f"arg1: {arg1}")

# This one takes no argument
def print_none():
    print("I got nothing'.")

print_two("aakash", "padhiyar")
print_two_again("dhaval", "padhiyar")
print_one("first!")
print_none()

file_text_edit_script.py

from sys import argv

script, input_file = argv

def print_all(f):
    print(f.read())

def rewind(f):
    f.seek(0)

def print_a_line(line_count, f):
    print(line_count, f.readline())

current_file = open(input_file)

print("First let's print the wiole file:\n")

print_all(current_file)

print("Now let's rewind, kind of line a tape.")

rewind(current_file)

print("Let's print three lines:")

current_line = 1
print_a_line(current_line, current_file)

current_line = current_line + 1
print_a_line(current_line, current_file)

current_line = current_line + 1
print_a_line(current_line, current_file)

fun_var_script.py

def cheese_and_crackers(cheese_count, boxes_of_crackers):
    print(f"You have {cheese_count} cheeses!")
    print(f"You have {boxes_of_crackers} boxes of creackers")
    print("Men that's enough for a party!")
    print("Get a blacket.\n")


print("we can just give the function numbers directly:")
cheese_and_crackers(20, 30)


print("OR, we can use variable for our script:")
amount_of_chesse = 10
amount_of_crackers = 50


cheese_and_crackers(amount_of_chesse, amount_of_crackers)

print("we can even do math inside too:")
cheese_and_crackers(10 + 20, 5 + 6)

print("And we can combine the two, variables and math:")
cheese_and_crackers(amount_of_chesse + 100, amount_of_crackers + 1000)

get_input_script.py

from sys import argv

script, user_name = argv 
prompt = '>'
print(f"Hi {user_name} T'm the {script} script.")
print("I'd like to ask you a few questions.")

print(f"Do you like me {user_name}") 
likes = input(prompt)

print(f"Where do you live {user_name}?")
lives = input(prompt)

print("What kind of computer do you have?")
computer = input(prompt)

print(f'''
Alright so you said {likes} about me like me.
You live in {lives}. Not sure where that is.
And you  have a {computer}. Nice.
''')

open&read_file_script.py

from sys import argv

script, filename = argv

txt = open(filename) 

print(f"Here's your file name {filename}:\n\n\n\n\n\n\n")
print(txt.read())

print("Type the filename again:\n\n\n")
file_again = input('> ')

txt_again = open(file_again)

print(txt_again.read())

sum_puzzle_script.py

def add (a, b):
    print(f"ADDING {a} + {b}")
    return a + b

def subtract(a, b):
    print(f"SUBTRACTING {a} - {b}")
    return a - b

def multiply(a, b):
    print(f"MULTIPLYING {a} * {b}")
    return a * b

def divide(a, b):
    print(f"DIVIDING {a} / {b}")
    return a / b

print("Let's do some math with just functions!")

age = add(30, 5)
height = subtract(78, 4)
weight = multiply(90, 2)
iq = divide(100, 2)

print(f"Age: {age}, Height: {height}, Weight: {weight}, IQ: {iq}")

# A puzzle for the extra credit, type it in anyway.
print("here is a puzzle.")

what = add(age, subtract(height, multiply(weight, divide(iq, 2))))

print("That becomes: ", what, "Can you do it by hand?")

write_in_file_script.p

from sys import argv 
script, filename = argv

print(f"We're going to erase {filename}.")
print("If you don't want that, hit CTRL+C (>C)")
print("If you do want that,hit RETURN.")

input('?')

print("Opening the file... ")
target = open(filename, 'w')

print("Truncating the file. Goodbey!")
target.truncate()

print("Now I', going to ask you for three lines.")

line1 = input("line 1: ")
line2 = input("line 2: ")
line3 = input("line 3: ")

print("I'm going to write there to the file.")

target.write(line1)
target.write('\n')
target.write(line2)
target.write('\n')
target.write(line3)

print("And finally , we close it.")
target.close()

Here I'm

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BY aakashpadhiyar

8140171224