Here's a very readable way to concatenate strings using "+=" on lists:
>>> l = [] >>> l += ['abc'] >>> l += ['abc'] >>> l += ['abc'] >>> l += ['abc'] >>> s = ''.join(l) >>> s 'abcabcabcabc' Probably not exactly what Paul had in mind, but it's beginners friendly. The string version, with O(N²) timing, reads like this: >>> s = '' >>> s += 'abc' >>> s += 'abc' >>> s += 'abc' >>> s += 'abc' >>> s 'abcabcabcabc' BTW: I think the above is a great example to teach beginners that choosing the right algorithm is rather important when it comes to dealing with large data sets. It's also a good example of why O(N²) isn't necessarily bad for small data sets. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Experts (#1, Mar 22 2020) >>> Python Projects, Coaching and Support ... https://www.egenix.com/ >>> Python Product Development ... https://consulting.egenix.com/ ________________________________________________________________________ ::: We implement business ideas - efficiently in both time and costs ::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 https://www.egenix.com/company/contact/ https://www.malemburg.com/ _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/GEPUC67A4B2ZWO5HWD5CEEVERHYP2JS2/ Code of Conduct: http://python.org/psf/codeofconduct/
