bad-whitespace:3::"Exactly one space required after comma
    x, y, z = (1,2,3,) # [bad-whitespace, bad-whitespace]
                  ^"
bad-whitespace:3::"Exactly one space required after comma
    x, y, z = (1,2,3,) # [bad-whitespace, bad-whitespace]
                ^"
bad-whitespace:5::"Exactly one space required after assignment
AAA =1  # [bad-whitespace]
    ^"
bad-whitespace:6::"Exactly one space required after assignment
BBB =  2  # [bad-whitespace]
    ^"
bad-whitespace:7::"Exactly one space required before assignment
CCC= 1  # [bad-whitespace]
   ^"