I am trying to do a more elegant version of this code. This just basically appends a string to categorynumber depending on the number. Would appreciate any help.

number = [100,150,200,500] 
categoryNumber = []

for i in range (0,len(number)):
    if (number [i] >=1000):
        categoryNumber.append('number > 1000')
    elif (number [i] >=200):
        categoryNumber.append('200 < number < 300')
    elif (number [i] >=100):
        categoryNumber.append('100 < number < 200')
    elif (number [i] >=50):
        categoryNumber.append('50 < number < 100')      
    elif (number [i] < 50):
        categoryNumber.append('number < 50')

for i in range(0,len(categoryNumber)):
    print i