Python Control Flow

[BigFoot13]

I have written a small program in python for calculating various computer-related equations. This is the code:

#!/usr/bin/env python
# File name: compmathcalc.py

running = True
while running:
    print 'Type b for Bandwidth Calculator, c for Color Depth Calculator, or h for Help'

    mode = raw_input('Select mode : ')

    def b():

        print 'Bandwidth Calculator'

    speed = int(raw_input('Enter the speed in MHz : '))
    width = int(raw_input('Enter the width in bits : '))

    bandwidth = speed * width / 8
    print 'The bandwidth in MB/s is', bandwidth

    continue

    def c():

        print 'Color Depth Calculator'
    
    depth = int(raw_input('Enter the color depth in bits: '))

    colors = 2 ** depth
    print 'The number of colors is', colors

    continue

    def h():

        print 'This is the help section. It is currently under construction. :)'

    continue

    if mode == b:

        b

    if mode == c:

        c

    if mode == h:

        h

else:
    print 'The while loop is over'

print 'Done'

The problem is that it doesn't "listen" to the defined variables. It will just jump from one mode to another despite what the input is.

What do I need to do to fix this?

Thanks,
BigFoot

[ghostdog74]

I have written a small program in python for calculating various computer-related equations. This is the code:

#!/usr/bin/env python
# File name: compmathcalc.py

running = True
while running:
    print 'Type b for Bandwidth Calculator, c for Color Depth Calculator, or h for Help'

    mode = raw_input('Select mode : ')

    def b():

        print 'Bandwidth Calculator'

    speed = int(raw_input('Enter the speed in MHz : '))
    width = int(raw_input('Enter the width in bits : '))

    bandwidth = speed * width / 8
    print 'The bandwidth in MB/s is', bandwidth

    continue

    def c():

        print 'Color Depth Calculator'
    
    depth = int(raw_input('Enter the color depth in bits: '))

    colors = 2 ** depth
    print 'The number of colors is', colors

    continue

    def h():

        print 'This is the help section. It is currently under construction. :)'

    continue

    if mode == b:

        b

    if mode == c:

        c

    if mode == h:

        h

else:
    print 'The while loop is over'

print 'Done'

The problem is that it doesn't "listen" to the defined variables. It will just jump from one mode to another despite what the input is.

What do I need to do to fix this?

Thanks,
BigFoot

thats because you have defined your functions with only the "print" statements. the rest of the statements does not belong to the various functions because of the indentations.
Also, put your functions outside the while loop. you don't need to define them everytime inside the loop. If your functions return values, then you have to include return statement.

import sys
def c():
     print 'Color Depth Calculator'    
     depth = int(raw_input('Enter the color depth in bits: '))
     colors = 2 ** depth
     return colors
     
def b():
     print 'Bandwidth Calculator'
     speed = int(raw_input('Enter the speed in MHz : '))
     width = int(raw_input('Enter the width in bits : '))
     bandwidth = speed * width / 8
     return bandwidth
     
def h():
     print 'This is the help section. It is currently under construction. :)'
while 1:
    print """
    b) Bandwidth Calculator 
    c) Color Depth Calculator
    h) Help
    q) Quit
    """
    mode = raw_input('Select mode : ')    
    if mode == "b":
        result = b()
        print 'The bandwidth in MB/s is', result
    elif mode == "c":
        result=c()
        print 'The number of colors is', result
    elif mode == "h":
        h()
    elif mode=="q":
        sys.exit(0)

[BigFoot13]

Ah, I see. Thanks for the help.