topic Re: Python: Retrieve Items From List in Python Questions https://community.esri.com/t5/python-questions/python-retrieve-items-from-list/m-p/41158#M3284 <HTML><HEAD></HEAD><BODY><SPAN>Length of list</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">len(listing)</PRE><BR /><SPAN>Get index starts at zero, so for your example</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">listing = [2,4,6,8]</PRE><BR /><SPAN>To get 6 you would do</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">listing[2]</PRE></BODY></HTML> Tue, 01 Nov 2011 13:29:15 GMT MathewCoyle 2011-11-01T13:29:15Z Python: Retrieve Items From List https://community.esri.com/t5/python-questions/python-retrieve-items-from-list/m-p/41157#M3283 <HTML><HEAD></HEAD><BODY><SPAN>Hi everyone,</SPAN><BR /><SPAN>I'm struggling with solving the problem described in this thread:</SPAN><BR /><A href="http://forums.arcgis.com/threads/39912-looped-block-selections">http://forums.arcgis.com/threads/39912-looped-block-selections</A><BR /><BR /><SPAN>I started a new thread because I have questions specifically related to lists in python.</SPAN><BR /><SPAN>Lets say my list is:</SPAN><BR /><SPAN>list = [2,4,6,8]</SPAN><BR /><SPAN>I want to be able to do 2 things which I thought should be fairly simple:</SPAN><BR /><SPAN>1. Get the total number of items in the list (4)</SPAN><BR /><SPAN>2. Get the value of a list item at a specific index (eg. return 6 for index value 3 - or 2 if the index starts at 0)</SPAN><BR /><BR /><SPAN>The methods listed here: </SPAN><A href="http://docs.python.org/tutorial/datastructures.html">http://docs.python.org/tutorial/datastructures.html</A><SPAN> don't seem to do either of those things.&nbsp; Is there some alternate method or object that would allow me to do that?</SPAN><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Tue, 01 Nov 2011 13:24:34 GMT https://community.esri.com/t5/python-questions/python-retrieve-items-from-list/m-p/41157#M3283 LornaMurison 2011-11-01T13:24:34Z Re: Python: Retrieve Items From List https://community.esri.com/t5/python-questions/python-retrieve-items-from-list/m-p/41158#M3284 <HTML><HEAD></HEAD><BODY><SPAN>Length of list</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">len(listing)</PRE><BR /><SPAN>Get index starts at zero, so for your example</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">listing = [2,4,6,8]</PRE><BR /><SPAN>To get 6 you would do</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">listing[2]</PRE></BODY></HTML> Tue, 01 Nov 2011 13:29:15 GMT https://community.esri.com/t5/python-questions/python-retrieve-items-from-list/m-p/41158#M3284 MathewCoyle 2011-11-01T13:29:15Z Re: Python: Retrieve Items From List https://community.esri.com/t5/python-questions/python-retrieve-items-from-list/m-p/41159#M3285 <HTML><HEAD></HEAD><BODY><SPAN>Perfect</SPAN><BR /><SPAN>Thank-you!!</SPAN></BODY></HTML> Tue, 01 Nov 2011 13:31:16 GMT https://community.esri.com/t5/python-questions/python-retrieve-items-from-list/m-p/41159#M3285 LornaMurison 2011-11-01T13:31:16Z