[Python-3000] PEP 30XZ: Simplified Parsing
Eric V. Smith
eric+python-dev at trueblade.com
Mon Apr 30 14:39:51 CEST 2007
Jim Jewett wrote:
> Rationale for Removing Implicit String Concatenation
>
> Implicit String concatentation can lead to confusing, or even
> silent, errors. [1]
>
> def f(arg1, arg2=None): pass
>
> f("abc" "def") # forgot the comma, no warning ...
> # silently becomes f("abcdef", None)
>
> or, using the scons build framework,
>
> sourceFiles = [
> 'foo.c',
> 'bar.c',
> #...many lines omitted...
> 'q1000x.c']
>
Since your first example omits the comma, I think this one should, too.
sourceFiles = [
'foo.c'
'bar.c',
#...many lines omitted...
'q1000x.c']
That is, either both examples should show an error, or both examples
should work, but point out how easy it is to make an error.
Eric.
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