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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Isn’t that always the case? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Right after sending that question out, I had an idea that seems to explain it.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>First: My attempt to give enough context without too much distraction left an invalid example.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In this case, “name” isn’t a string; it is a string contained in a generator (or from a generator, I don’t know which is correct).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>And, the problem turned out to be the definition of __getitem__.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Joe Pizzi<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Joe Pizzi <pizzi.joe@gmail.com> <br><b>Sent:</b> Saturday, August 21, 2021 3:57 PM<br><b>To:</b> chirp_devel@intrepid.danplanet.com<br><b>Subject:</b> Python and slices<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m working the port to Python3. One strangeness I’ve found is that sometimes<o:p></o:p></p><p class=MsoNormal>name = ‘memory’<o:p></o:p></p><p class=MsoNormal>for i in memory[:3]:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Doesn’t work. I get:<o:p></o:p></p><p class=MsoNormal>TypeError: int() argument must be a string, a bytes-like object or a number, not ‘NoneType’<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I must explicitly add the zero:<br>for i in memory[0:3]:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Anybody know why this is? I’ve tried searching, but cannot find anything that states this doesn’t work.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Joe Pizzi<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>