def lambda_handler(event, context):
context = None # we don't use it, and don't want to potentially expose in the eval below
REQUIRED_PARAMS = {'value'}
missing_params = REQUIRED_PARAMS - set(event.keys())
try:
if missing_params:
input_value = json.dumps(event)
raise MissingRequiredParameterException(missing_params)
input_value = event['value']
input_value = input_value if isinstance(input_value, basestring) else str(input_value)
# extremely half-ass (quarter-ass?) parsing
initial_chunks = input_value.split(' ') # must have spaces between operators and roman characters
formatter = lambda x: str(convert_to_decimal(x.strip())) if x.isalpha() else x
chunks = map(formatter, initial_chunks)
final_string = ''.join(chunks)
ans = eval(final_string) # unsafe? sure. but it's ok bc its an AWS lambda and not a "real" machine
return {
"roman": convert_to_roman(ans),
"decimal": ans
}
except Exception as e:
logger.exception("Original: {0}, Translated: {1}".format(
input_value, locals().get('final_string', 'unreachable')
))
raise Exception("Bad Request: " + e.__class__.__name__ + ' w/ ' + e.message)
def lambda_handler(event, context):
context = None # we don't use it, and don't want to potentially expose in the eval below
REQUIRED_PARAMS = {'value'}
missing_params = REQUIRED_PARAMS - set(event.keys())
try:
if missing_params:
input_value = json.dumps(event)
raise MissingRequiredParameterException(missing_params)
input_value = event['value']
input_value = input_value if isinstance(input_value,
str) else str(input_value)
# extremely half-ass (quarter-ass?) parsing
initial_chunks = input_value.split(
' ') # must have spaces between operators and roman characters
formatter = lambda x: str(convert_to_decimal(x.strip())) if x.isalpha(
) else x
chunks = map(formatter, initial_chunks)
final_string = ''.join(chunks)
ans = eval(
final_string
) or 0 # unsafe? sure. but it's ok bc its an AWS lambda and not a "real" machine
return {"roman": convert_to_roman(ans), "decimal": ans}
except Exception as e:
logger.exception("Original: {0}, Translated: {1}".format(
input_value,
locals().get('final_string', 'unreachable')))
raise Exception("Bad Request: " + e.__class__.__name__ + ' w/ ' +
str(e))
import string
import sys
from roman_numeral import convert_to_decimal, convert_to_roman
arg = sys.argv[1] if len(sys.argv) > 1 else sys.stdin.readline().rsplit(" ", 1)[0].strip()
if all([c in string.digits for c in arg]):
print(convert_to_roman(int(arg)))
elif all([c in string.letters for c in arg]):
print(convert_to_decimal(arg))
def test_decimal_to_roman(self, decimal, roman):
self.assertEquals(convert_to_roman(decimal), roman)
