Michael Lazar added the comment:
I can certainly do that. Although in addition to adding a keyword argument, we
would also have to change the return signature to switch between modes like
this:
if lineno is None:
return caps
else:
return caps, lineno
Overall I'm not a fan of this technique and would like to avoid it if possible.
The problem is that we have to keep track of the current line between
successive calls to readmailcapfile(). An alternative would be to go back to
using lineno as a generator. This is close to what I had in the initial patch.
lineno = itertools.count()
caps = readmailcapfile(fp, lineno=lineno)
caps = readmailcapfile(fp2, lineno=lineno)
caps = readmailcapfile(fp3, lineno=lineno)
...etc
Happy to hear any insights you have on this.
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