human
Solve the following python programming problem given the following code:
def _conda_format(req) : 
    def _sub(m) : 
        name = m.group ('name').lower () 
        if (name == 'numpy') : 
            return 'numpy x.x' 
formatted = ('%s %s%s' % ((name,) + m.group ('comp', 'spec'))) 
        (pycomp, pyspec) = m.group ('pycomp', 'pyspec') 
        if pyspec : 
            selector = (' # [int(py) %s int(%s)]' % (pycomp, ''.join (pyspec.split ('.') [: 2]).ljust (2, '0'))) 
            return (formatted + selector) 
return formatted 
return REQ_PATTERN.sub (req, req, 1) 

    
    

    Fix the buggy line: return REQ_PATTERN.sub (req, req, 1)
assistant
#Here is Python program to fix the buggy line: return REQ_PATTERN.

return REQ_PATTERN.sub (def _sub(, req, 1)