Lecture Notes on 4 Jun 2019

Learning Python

* Write the Hello World program

def main():
  print ("Hello World!")

main()

* Characterset: ASCII and Unicode

* Variables 
  - must start with a letter
  - followed by letters, digits, underscores
  - cannot be a reserved word

* Statements and Expressions
  x = 1  # statement
  x == 1 # expression

* Assignment Statement 
  x = 3.14

* Types - int, float, str, bool

* Operators
  - Arithmetic: + - * / // % **
  - Comparison: < <= > >= == !=
  - Boolean: not, and, or
  - Bitwise: ~ & | ^
  - Shift: << >>

* Conditionals: if-else, if-elif-else

* Loops: while, for
  while (x < 10):
    # do something

  for i in range (10):
    print (i)

* Lists: 1-D, 2-D

* Input / Output: Console and Files

* Tuple: 

* Set: 

* Dictionary: key-value pairs

* Functions: built-in, library, user defined

* Class

Assignments:

* Do the following exercises from Coding Bat
  - Warmup-1
     sleep_in 
     monkey_trouble
     sum_double 
     diff21 
     parrot_trouble 
     makes10 
     near_hundred
     pos_neg 

  - Logic-1
     cigar_party 
     date_fashion 
     squirrel_play 
     caught_speeding 
     sorta_sum 
     alarm_clock 
     love6 
     in1to10 
     near_ten 

  - Logic-2
     make_bricks 
     lone_sum 
     lucky_sum 
     no_teen_sum 
     round_sum 
     close_far 
     make_chocolate