human
Solve the following python programming problem given the following code:
def create_package(conanfile, build_folder, package_folder, output) : 
    ' copies built artifacts, libs, headers, data, etc from build_folder to
    package folder
    ' 
    mkdir (package_folder) 
    output.info ('Generating the package') 
    output.info (('Package folder %s' % package_folder)) 
    conanfile.copy = FileCopier (build_folder, package_folder) 
    def wrap(dst_folder) : 
        def new_method(pattern, src = '') : 
            conanfile.copy (pattern, dst_folder, src) 
return new_method 
conanfile.copy_headers = wrap (DEFAULT_INCLUDE) 
    conanfile.copy_libs = wrap (DEFAULT_LIB) 
    conanfile.copy_bins = wrap (DEFAULT_BIN) 
    conanfile.copy_res = wrap (DEFAULT_RES) 
    try : 
        conanfile.package_folder = package_folder 
        conanfile.package () 
        package_output = ScopedOutput (('%s package()' % output.scope), output) 
        conanfile.copy.report (package_output, warn = True) 
except Exception as e : 
        os.chdir (build_folder) 
        try : 
            rmdir (package_folder) 
except Exception as e_rm : 
            output.error (('Unable to remove package folder %s
%s' % (package_folder, str (wrap)))) 
            output.warn ('**** Please delete it manually ****') 
raise ConanException (('%s: %s' % (conanfile.name, str (e)))) 
_create_aux_files (build_folder, package_folder) 
    output.success (("Package '%s' created" % os.path.basename (package_folder))) 

    
    

    Fix the buggy line: output.error (('Unable to remove package folder %s
%s' % (package_folder, str (wrap))))
assistant
#Here is Python code to fix the buggy line: output.

output.error (('Unable to remove package folder %s
%s' % (package_folder, str (e_rm))))