def exchange(cash_in):
    euro=1
    dollar=1.35
    base=50
    if cash_in>base:
        totalreturn=cash_in*dollar
    else:
        totalreturn=0
    return totalreturn

amount=0
# this would be better placed inside the main function.
def main():
    while amount<50:
        amount = raw_input(float('how much do you want to change:'))
        # This should be 
    # amount = float( raw_input('how much do you want to change:' ) )
    if amount<50:
        total=0
        print 'enter an amount over 50: '
    else:
        total=exchange(amount)
        print 'Your exchange comes to: ',total


Ramit


Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology
712 Main Street | Houston, TX 77002
work phone: 713 - 216 - 5423

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