topic Re: Calculate field question in Python Questions https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51035#M4050 <HTML><HEAD></HEAD><BODY><SPAN>Try this.</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">dateTimeExp = "str(!AccDate!) + ' ' + str(!AccTime!)"</PRE></BODY></HTML> Thu, 03 May 2012 20:54:06 GMT MathewCoyle 2012-05-03T20:54:06Z Calculate field question https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51034#M4049 <HTML><HEAD></HEAD><BODY><SPAN>Any idea why the following code will not work? If I take out the " " and one +, it will run, but not the result I need.</SPAN><BR /><BR /><PRE class="plain" name="code">#dateTimeExp = "!AccDate! + " " + !AccTime!" dateTimeExp = "str(!AccDate! + " " + !AccTime!)" arcpy.CalculateField_management(outCrash, "AccDT", dateTimeExp, "PYTHON")</PRE><BR /><BR /><BR /><SPAN>It returns the following error:</SPAN><BR /><SPAN>ExecuteError: ERROR 000539: Error running expression: str("4/1/2005" +&nbsp; + "7:35:00 AM") &lt;type 'exceptions.TypeError'&gt;: bad operand type for unary +: 'str'</SPAN><BR /><SPAN>Failed to execute (CalculateField).</SPAN></BODY></HTML> Thu, 03 May 2012 20:44:53 GMT https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51034#M4049 MichaelMiller2 2012-05-03T20:44:53Z Re: Calculate field question https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51035#M4050 <HTML><HEAD></HEAD><BODY><SPAN>Try this.</SPAN><BR /><PRE __default_attr="plain" __jive_macro_name="code" class="jive_macro_code jive_text_macro">dateTimeExp = "str(!AccDate!) + ' ' + str(!AccTime!)"</PRE></BODY></HTML> Thu, 03 May 2012 20:54:06 GMT https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51035#M4050 MathewCoyle 2012-05-03T20:54:06Z Re: Calculate field question https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51036#M4051 <HTML><HEAD></HEAD><BODY><SPAN>Doh, Mathew beat me, but this also works.</SPAN><BR /><PRE class="plain" name="code">exp = 'str(!AccDate!) + " " + str(!AccTime!)'</PRE><DIV style="display:none;"> </DIV></BODY></HTML> Thu, 03 May 2012 21:05:35 GMT https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51036#M4051 DarrenWiens2 2012-05-03T21:05:35Z Re: Calculate field question https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51037#M4052 <HTML><HEAD></HEAD><BODY><SPAN>Thank you gentlemen!</SPAN><BR /><BR /><SPAN>I'm just getting up to speed with Python and this list is great for nudging me over the hurdles.</SPAN><BR /><BR /><SPAN>Michael Miller</SPAN></BODY></HTML> Fri, 04 May 2012 12:27:47 GMT https://community.esri.com/t5/python-questions/calculate-field-question/m-p/51037#M4052 MichaelMiller2 2012-05-04T12:27:47Z