I have a small script in python, that make use of locale to format a number from 1.000,00 to 1,000.00
import re, locale
locale.setlocale(locale.LC_ALL, 'es_PE.UTF-8')
locale.atof(number)
Then when I run this in Lambda, I get this error message:
unsupported locale setting
I know how to install the dependencies in my PC by executing this commands in the terminal:
export LC_ALL="en_US.UTF-8"
export LC_CTYPE="en_US.UTF-8"
sudo dpkg-reconfigure locales
For detereming the list of available locales see https://phrase.com/blog/posts/beginners-guide-to-locale-in-python/
for lang in locale.locale_alias.values():
print(lang)
You won't be able to "install" anything in the default AWS Lambda Python Runtime Environment and setting up a custom runtime is probably more trouble than it's worth. You can see if there is something else you can use.
If you really are just converting 1.000,00 to 1,000.00 I recommend instead just running your own character replacement. A simple character check loop wouldn't be any slower than atof and would have less side effects.
If your curious about how atof works you can follow it's source code trace in https://github.com/python/cpython/blob/3.10/Lib/locale.py#L336
If you don't want to use your own character replace you can use format with a custom format_spec.
>>> '{:,.2f}'.format(10000)
'10,000.00'
This next line pretty much follows the same steps at atof. Delocalize with replacements then float.
>>> '{:,.2f}'.format(float('10.000,00'.replace('.','').replace(',','.')))
'10,000.00'
https://docs.python.org/3/library/functions.html#format https://docs.python.org/3/library/string.html#formatspec
If you you really want to customize your lambda runtime see the following:
https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html https://docs.aws.amazon.com/lambda/latest/dg/runtimes-custom.html https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html https://docs.aws.amazon.com/lambda/latest/dg/runtimes-context.html