isMoney (Python recipe) by waikeong chan

ActiveState Code (http://code.activestate.com/recipes/361333/)

Hi!

To just check if the number is in money format and valid money formats are "123" and "123.04" I would do something like this:

def isMoney(money):
    money = str(money)
    if money.isdigit(): return True
    else:
        try:
            new = "%.2f" % float(money)
            return new == money
        except: return False

if __name__ == '__main__':
    print isMoney("123.004")  # False
    print isMoney(123)        # True
    print isMoney("123.04")   # True
    print isMoney("1.2.3")    # False
    print isMoney("hello")    # False

Hi Markus! yeah! your code is looks smartter Hi Markus! yeah! your code is looks smartter

Hi Markus! yeah! your code is looks smartter Hi Markus! yeah! your code is looks smartter

but it cant function when i key in "123.4". i expect it return $123.40 as the answer; but it return false!!

Hi!

My function just checks if the data is in money-format. If you want to convert it to this format, you can do this:

def to_money(data):
    try:
        return "$%.2f" % data
    except:
        return False  # or some error message

print to_money(123.4)   # -> $123.40

Hi!
how do you think about the following code?

def isMoney(money):
    money = str(money)
    if money.isdigit():
        return "%.2f" % float(money)
    else:
        try:
            new = "%.2f" % float(money)
            return new
        except: return False

if __name__ == '__main__':
    print isMoney("123.4")    # True
    print isMoney(123)        # True
    print isMoney("123.04")   # True
    print isMoney("1.2.3")    # False
    print isMoney("hello")    # False

it's looks better <pre>
Hi!
how do you think about the following code?

def isMoney(money):
    money = str(money)
    if money.isdigit():
        return "%.2f" % float(money)
    else:
        try:
            new = "%.2f" % float(money)
            return new
        except: return False

if __name__ == '__main__':
    print isMoney("123.4")    # True
    print isMoney(123)        # True
    print isMoney("123.04")   # True
    print isMoney("1.2.3")    # False
    print isMoney("hello")    # False

it's looks better

</pre>

What about , comma. In some countries the default delimiter on decimal value is the , comma character. Not the . dot.

isMoney with re.

def isMoney(str):
import re
re_money = re.compile(r'\$([0-9]{,3}\,?)+(\.[0-9]{,2})?$')
    if(re_money.match(str)):
        print 'true'
    else:
        print 'false'

isMoney('0.2') #false
isMoney('$0.2') #true
isMoney('$0.20') #true
isMoney('10.234') #false
isMoney('$1,100.0.001829') #false
isMoney('$1,000,000.20') #true
isMoney('$1.1,0') #false