Sunday 15 June 2014

python mysql type error -


In Python I have trouble with the following types of code: 

  & gt; ; & Gt; & Gt; CurRow = 1 & gt; & Gt; & Gt; CurCol = 2> gt; & Gt; & Gt; Type (currow) type 'int' & gt; & Gt; & Gt; Cur.execute ("Select COUNT (*) proximity where r =% d and c =% d", (curRow, curCol) traceback (most recent call final): File "& lt; stdin" , Line 1, in & lt; Module & gt; File "build / bdist.macosx-10.8-intel / egg / MySQLdb / cursors.py", line 183, in the type of type executed:% d format: a number is required, not str   
 Note in the  r  and  c  both  int  fields in the table  adjacency   
 
 I Very confused as  curRow  and  curCol  are clearly written by type  int , and % d  As a  int  me What is confusing as a string in a dragon?   
 
 
 Because  .execute ()  doesn you pass it to the replacement of arguments Not just a % , it runs it first by running away, which changes the value in the string in the process.  
 Use % s  instead.   

 








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