title: Splitting Columns Values into other columns based on character position
body: <p>I'd like to split a column of a data frame into two other columns based on the position of the character. For example, if there was a delimiter between the two values I'd use <code>str.split()</code>. However, I do not and only know the first 12 characters should be assigned to a column and the remaining 7 should be assigned to another column. If this was one instance I'd use <code>column1 = composite_symbol[:13] and column2 = composite_symbol[13:]</code>.</p>
  <p>composite_symbol
  <br /> AT0000730007B1WVF68
  <br/> AT00009375034943402</p>
  <p>to</p>
  <p>column1<br />
  row 1 AT0000730007
  <br/> row 2 AT0000937503</p>
  <p>column2
  <br /> row 1 B1WVF68
  <br/> row 2 4943402</p>
  <p>composite_symbol
  <br /> AT0000730007B1WVF68
  <br/> AT00009375034943402</p>