human
Solve the following python programming problem given the following code:
def _replace_github_issue_references(self, line) : 
    valid_name = '[\\w\\._-]+' 
    issue_pattern = '#(\\d+)' 
    def replace_issue_number(match) : 
        issue_url = self._github_base_url 
        if match.group (1) : 
            path = match.group (1) 
            issue_url += path 
else : 
            path = '' 
            issue_url += self._github_path 
issue_number = match.group (2) 
        issue_url += ('/issues/' + issue_number) 
        return ('`%s#%s <%s>`_' % (path, issue_number, issue_url)) 
line = re.sub ((('(%s/%s)?' % (valid_name, valid_name)) + line), replace_issue_number, line) 
    return line 

    
    

    Fix the buggy line: line = re.sub ((('(%s/%s)?' % (valid_name, valid_name)) + line), replace_issue_number, line)
assistant
#Here is Python program to fix the buggy line: line = re.

line = re.sub ((('(%s/%s)?' % (valid_name, valid_name)) + issue_pattern), replace_issue_number, line)