class 4 definite loops range list end=" "

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Presentation transcript:

class 4 definite loops range list end=" " in loop, after loop – indentation matters simultaneous assignment simultaneous input using the debugger in thonny retrieving previous statement in thonny or IDLE shell

module doesn't print without a print statement (ie, nothing like >>>a) In shell: >>>x=3 >>>x 3 In module: x=3 x no output

definite loop

for i in range(5): print("i=",i)

for i in range(5): print("i=",i) i= 0 i= 1 i= 2 i= 3 i= 4

CODE for k in range(5): print(2*k, end=" ")

CODE for k in range(5): print(2*k, end=" ") OUTPUT 0 2 4 6 8

CODE for k in range(5): print(2*k+1, end=" ")

CODE for k in range(5): print(2*k+1, end=" ") OUTPUT 1 3 5 7 9

CODE m = 5 for k in range(m): print(100+2*k+1, end=", ") print(100+2*m+1)

CODE m = 5 for k in range(m): print(100+2*k+1, end=", ") print(100+2*m+1) OUTPUT 101, 103, 105, 107, 109, 111

CODE m = 5 for k in range(m): print(100+2*k+1, end=", ") print() print(100+2*m+1)

CODE m = 5 for k in range(m): print(100+2*k+1, end=", ") print() print(100+2*m+1) OUTPUT 101, 103, 105, 107, 109, 111

CODE m = 5 for k in range(m): print(100+2*k+1, end=", ") print() print(100+2*m+1)

CODE m = 5 for k in range(m): print(100+2*k+1, end=", ") print() print(100+2*m+1) OUTPUT 101, 103, 105, 107, 109, 111

Indentation Matters! CODE m = 5 for k in range(m): print(100+2*k+1, end=", ") print() print(100+2*m+1) OUTPUT 101, 103, 105, 107, 109, 111 Indentation Matters!

CODE for k in [101, 103, 105, 107, 109]: print(k, end=", ") print() print(111)

CODE for k in [101, 103, 105, 107, 109]: print(k, end=", ") print() print(111) OUTPUT 101, 103, 105, 107, 109, 111

What if I asked for odd numbers 101 to 1001? CODE for k in [101, 103, 105, 107, 109]: print(k, end=", ") print() print(111) What if I asked for odd numbers 101 to 1001? OUTPUT 101, 103, 105, 107, 109, 111

CODE list(range(4))

CODE list(range(4)) OUTPUT [0, 1, 2, 3]

Simultaneous Assignment (draw memory) long, lat = 43.0, 76.1 month, day, yr = eval(input("month, day, year"))

Debugger review an example view the variables area debug, step over, step into

retrieving previous statements in the shell. In Thonny, up and down arrow keys. In IDLE: mac: control p (previous), control n (next) windows: alt p, alt n