tlsfuzzer/tlslite-ng

Negative comparison should be done using "not in" and "is not".

Okay: if x not in y:\n    pass
Okay: assert (X in Y or X is Z)
Okay: if not (X in Y):\n    pass
Okay: zz = x is not y
E713: Z = not X in Y
E713: if not X.B in Y:\n    pass
E714: if not X is Y:\n    pass
E714: Z = not X.B is Y

Limit all lines to a maximum of 79 characters.

There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to
have several windows side-by-side.  The default wrapping on such
devices looks ugly.  Therefore, please limit all lines to a maximum
of 79 characters. For flowing long blocks of text (docstrings or
comments), limiting the length to 72 characters is recommended.

Reports error E501.

When catching exceptions, mention specific exceptions when possible.

Okay: except Exception:
Okay: except BaseException:
E722: except: