"Edward Loper" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Talin wrote:
>> Braces can be escaped using a backslash:
>>
>> "My name is {0} :-\{\}".format('Fred')
>>
>> Which would produce:
>>
>> "My name is Fred :-{}"
>
> Do backslashes also need to be backslashed then? If not, then what is
> the translation of this:?
>
> r'abc\{%s\}' % 'x'
>
> I guess the only sensible translation if backslashes aren't backslashed
> would be:
>
> .format('x')
>
> But the parsing of that format string seems fairly unintuitive to me.
> If backslashes do need to be backslashed, then that fact needs to be
> mentioned.
AFAICT there would be no way to use raw strings with that method. That
method
would be using the escape sequence "\{" to indicate a bracket. Raw strings
cannot have escape sequences.
Additional backslashes are added to raw strings to remove anything that
resembles an escape sequence.
So either an additional layer of escaping is required (like with regex'es)
or ".format()" would
simply not be usable with raw strings.
The problem of having an additional level of escaping is very shown with
regexes. A simgle slash
as the end value is either "\\\\" or r"\\".
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