Extract all SRPMs in current path to source level

gistfile1.py

#!/usr/bin/env python                                                           
                                                                                
import os                                                                       
import sys                                                                      
                                                                                
for filename in os.listdir('./'):                                               
    if not filename.endswith('.rpm'):                                           
        continue                                                                
    if sys.argv[1][-1] == '/':                                                  
        sys.argv[1] = sys.argv[1][0:-1]                                         
    topdir = "%s/%s" % (sys.argv[1], filename[0:-4])                            
    cmd = "rpm --define '_topdir %s' -i %s" % (                                 
            topdir, filename)                                                   
    print cmd                                                                   
    os.system(cmd)                                                              
                                                                                
    os.chdir('%s/SPECS' % topdir)                                               
    for specfile in os.listdir('./'):                                           
        if not specfile.endswith('.spec'):                                      
            continue                                                            
        cmd = "rpmbuild --define '_topdir %s' -bp %s" % (                       
                topdir, specfile)                                               
        print cmd                                                               
        os.system(cmd)