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  1. def get_the_strings_that_only_contain_the_character_x(l): return [string for string in l if 'x' in string]
  2.  
  3. print get_the_strings_that_only_contain_the_character_x(['windows','mac','unix','linux','osx','vax','solaris','aix','bsd'])
Success #stdin #stdout 0.02s 4676KB
stdin
Standard input is empty
stdout
['unix', 'linux', 'osx', 'vax', 'aix']