String slices
Peter J. Holzer
hjp-python at hjp.at
Sat Aug 10 05:45:43 EDT 2019
On 2019-08-10 09:10:12 +1000, Cameron Simpson wrote:
> On 09Aug2019 22:28, Paul St George <email at paulstgeorge.com> wrote:
> > On 09/08/2019 16:29, Rhodri James wrote:
> > > (Actually I would probably use outstream.write() and do my own
> > > formatting, but let's not get side-tracked ;-)
> > >
> > I would love to hear your outstream.write() side-track!
>
> I am not Rhodri James, but you can just write strings to text files:
>
> outstream.write("X: ") # note, includes the space separator
> outstream.write(str(thing[0]))
> outstring.write("\n")
You can also format the string before passing it to write (which is
probably what Rhodri meant by "do my own formatting", like this:
outstream.write("X: %7.2f\n" % thing[0])
or this
outstream.write("X: {0:7.2f}\n".format(thing[0]))
or (since Python 3.6) this:
outstream.write(f"X: {thing[0]:7.2f}\n")
There are of course many variants to all three methods.
hp
--
_ | Peter J. Holzer | we build much bigger, better disasters now
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__/ | http://www.hjp.at/ | -- Ross Anderson <https://www.edge.org/>
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