On Thu, Sep 8, 2011 at 10:36 AM, Andre Engels <andreeng...@gmail.com> wrote:
> On Thu, Sep 8, 2011 at 4:16 PM, lina <lina.lastn...@gmail.com> wrote: > >> On Thu, Sep 8, 2011 at 9:59 PM, Alan Gauld <alan.ga...@btinternet.com> >> wrote: >> > On 08/09/11 14:02, lina wrote: >> >> >> >> Hi, >> >> >> >> I failed to understand the "collpase" meaning in a string. >> >> >> >> can someone give me a simple example? >> > >> > Can you give us some context? >> > Its not a method of a string object so far as I can tell? >> > Where did you read about it? >> >> >From "dive into python", >> >> http://diveintopython.org/ >> >> one example: >> >> def info(object, spacing=10, collapse=1): >> """Print methods and docs strings. >> >> Take modules, class, list, dictionary, or strong.""" >> methodList = [e for e in dir(object) if callable(getattr(object, e))] >> processFunc = collapse and (lambda s: " ".join(s.split())) or (lambda >> s: s) >> print "\n".join(["%s %s" % >> (method.ljust(spacing), >> processFunc(str(getattr(object, method).__doc__))) >> for method in methodList]) >> >> if __name__ == "__main__": >> print info.__doc__ >> >> I felt so hard to understand the collapse, >> >> Please don't discourage me telling me it's an old book, >> To me I started reading till 42 pages. let me finish it. >> >> I used to study python on and off, >> sometimes give a whole week, but due to not using it, >> so >> it's frustrating that when I really needed it, I barely could complete >> one. >> > > Reading this, it seems that 'collapse' is a variable defined somewhere else > in the code. > > -- > André Engels, andreeng...@gmail.com > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > > collapse is a function that Mark must have described earlier in the chapter you are working on. Are you using the online version? which chapter -- Joel Goldstick
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