Anna K - 1 year ago 78
Python Question

# Changing strings into integers

I'm going crazy and I can not figure the right solution :(

How can I solve that problems. I have a loop and I can get diffrent types like:

``````empty string
10
10K
2.3K
2.34K
2M
2.2M
2.23M
``````

I need to change them into numbers:

``````0
10
10000
2300
2340
2000000
2200000
2230000
``````

• check if string is empty
• return 0
• check if string ends in K or M
• if it does, strip that character off the end, store it for later
• multiply by appropriate factor (K = 1000 or M = 1000000)

This can be achieved with the following:

``````def convert(value):
if value:
# determine multiplier
multiplier = 1
if value.endswith('K'):
multiplier = 1000
value = value[0:len(value)-1] # strip multiplier character
elif value.endswith('M'):
multiplier = 1000000
value = value[0:len(value)-1] # strip multiplier character

# convert value to float, multiply, then convert the result to int
return int(float(value) * multiplier)

else:
return 0

values = [
'',
'10',
'10K',
'2.3K',
'2.34K',
'2M',
'2.2M',
'2.23M',
]

# use a list comprehension to call the function on all values
numbers = [convert(value) for value in values]

print numbers
``````

This should return

``````[0, 10, 10000, 2300, 2340, 2000000, 2200000, 2230000]
``````
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