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DBformatter.re doesn't work with double-braces #125
Description
The DBformatter.re method doesn't work with double-braces (i.e., "do not expand this").
This is documented but someone might reasonably expect to, say, include these to allow curly-braces in their configuration files and be surprised by it.
Minimal example to reproduce issue:
import dbprocessing.DBstrings
fmtr = dbprocessing.DBstrings.DBformatter()
fmtr.re('{{Y}}') # should return '{Y}'Error message/Traceback:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/jtniehof/.local//lib//python3.6/site-packages/dbprocessing/DBstrings.py", line 93, in re
self.expand_format(format_string, kwargs), *args, **kwargs)
File "/usr/lib/python3.6/string.py", line 190, in format
return self.vformat(format_string, args, kwargs)
File "/usr/lib/python3.6/string.py", line 194, in vformat
result, _ = self._vformat(format_string, args, kwargs, used_args, 2)
File "/usr/lib/python3.6/string.py", line 234, in _vformat
obj, arg_used = self.get_field(field_name, args, kwargs)
File "/usr/lib/python3.6/string.py", line 299, in get_field
obj = self.get_value(first, args, kwargs)
File "/usr/lib/python3.6/string.py", line 256, in get_value
return kwargs[key]
KeyError: 'Y'
OS, Python version, and dependency version information:
Linux-4.15.0-167-generic-x86_64-with-Ubuntu-18.04-bionic
sys.version_info(major=3, minor=6, micro=9, releaselevel='final', serial=0)
sqlalchemy=1.1.11
Version of dbprocessing
Current git master (5acdfa8)
Closure condition
This issue should be closed when a test for double-braces is committed with code that makes it pass.
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