r file-like</span>
<span class="sd">        Write Pymol script to this file (filename as string,</span>
<span class="sd">        or writeable file handle)</span>
<span class="sd">    chain : str, optional (default: None)</span>
<span class="sd">        PDB chain that should be targeted by secondary</span>
<span class="sd">        structure assignment. If None, residues will be selected</span>
<span class="sd">        py position alone, which may cause wrong assignments</span>
<span class="sd">        if mul