An attempt to solve all Week 1 and 2 problems on a Python course with one-liners. (Task 1 was a graph!)

week_1_task_1.py

(lambda s, t, u: 
  print('Hello, ' + u + '-year-old ' + s + ' ' + t + '. Good luck on the course!'))(
  input('First name? :: '), 
  input('Last name? :: '), 
  input('Age? :: '))

week_1_task_2.py

# Calculate the circumference of the Earth in lemonade bottles.
from math import pi
(lambda k, h, y: 
  print('You\'d need {:,.2f} bottles.'.format(y/k)) or 
  print('And these bottles could be reclaimed for {:,.2f} euros.'.format((y/k)*h))
  )(float(input('The length of a lemonade bottle? (cm) :: '))/100., 
    float(input('The reclaim price for a lemonade bottle?  (eur) :: ')), 6378000*2*pi)

week_1_task_3.py

# Read some ASCII art off the web and print it
from urllib.request import urlopen
(lambda f: 
  print(f.read().decode('UTF-8')))(
  urlopen('https://dl.dropboxusercontent.com/u/22100200/txt/ascii-art.txt'))

week_1_task_4.py

# Calculate time span until a specific time
from datetime import datetime, date, time
# datetime(days=,seconds=,microseconds=,milliseconds=,minutes=,hours=,weeks=)
(lambda n, t: 
  print(n + ', your show will start in ' + str(t.seconds//3600) + ' hours, '+ 
        str((t.seconds//60)%60) + ' minutes and ' + str(divmod(divmod(t.seconds, 3600)[1], 60)[1]) + ' seconds.')
  )(input('What\'s your name? :: '), 
    datetime.combine(datetime.now().date(), 
                     time(int(input('When will your show start? (hours) :: ')), 
                          int(input('When will your show start? (minutes) :: ')))) - datetime.now())

week_2_task_2.py

# Task 2: the only one I didn't manage to solve as a oneliner!
# It's a sort of branching story
print ('You wake up and see a wolf')

if input('Do you want to follow the wolf? :: (yes/no) ').lower() == 'yes':
  print ('The wolf escapes, but you can track it down')
else: 
  print ('The wolf goes along')


print ('You\'re becoming hungry. How long have you been here...?')

if input('Track the wolf? :: (yes/no) ').lower() == 'no':
  print ('The wolf meets a pack and they advance towards you. You have no option but to run away. After running for a while you drop down and the wolves reach you')
else:
  print('You instead wander around the forest, and find a bush with lots of red berries on them')
  
  if input('You pick some of the berries. Will you eat them? :: (yes/no) ').lower() == 'yes':
    print ('The berries were poisonous! You feel drowsy and faint again.')
  
  else:
    print('You become more and more hungry. Soon you\'re way too tired to walk so you sit down and take a nice long nap..')

# ...jah, minestamine, nimetame seda selleks siis
if __name__=='__main__':
  input()

week_2_task_3.py

# Task 3: Make a password based lock
(lambda r:
  r(r,'?drowssaP',1)
)(lambda r,n,c:
  input('Password? :: ' if c==1 else 'Wrong password! Read the source code! \r\nPassword? :: ') == n and 
    (lambda: print('yay') or True)() or 
    (c == 3 and 
      (lambda: print('Out of tries - you didn\'t make it this time!') or True)() 
      or r(r,n,c+1)))

week_2_task_4.py

from time import sleep 
# Task 4: A timer with two inputs
# Count down from B to A in time and say "Ran out of time!" when done
(lambda a, b: [sleep(1) or print(i) for i in range(a, b-1, -1)] and print('Ran out of time!'))(
   int(input('Starting from the number? :: ')), int(input('Ends with the number? :: ')))

week_2_task_5.py

# Task 5: Find the sum of all numbers from 100 to 2000, that can be divided by 3.
print(sum(range(102, 2000, 3)))