Hi ,

I was able to use the latest homebrew pymol formula and install pymol after making sure that tcl-tk was installed with --enable-threads and --with-x11 and python was configured --with-brewed-tk


The pymol build proceeded to completion.

However when I launch pymol I get the following error ( see below)
Does anyone know what I am doing wrong.

I am (sadly still) using a 32 bit Mac OSX Snow Leopard 10.6.8 laptop .

Thanks
Hari


hari-jayarams-macbook-pro-17:~ hari$ pymol
Traceback (most recent call last):
  File "/usr/local/Cellar/pymol/1.6.0.0/lib/python2.7/site-packages/pymol/__init__.py", line 185, in <module>
    import pymol
  File "/usr/local/Cellar/pymol/1.6.0.0/lib/python2.7/site-packages/pymol/__init__.py", line 499, in <module>
    from pymol import _cmd
ImportError: dlopen(/usr/local/Cellar/pymol/1.6.0.0/lib/python2.7/site-packages/pymol/_cmd.so, 2): Symbol not found: _png_check_sig
  Referenced from: /usr/local/Cellar/pymol/1.6.0.0/lib/python2.7/site-packages/pymol/_cmd.so
  Expected in: flat namespace
 in /usr/local/Cellar/pymol/1.6.0.0/lib/python2.7/site-packages/pymol/_cmd.so