File comic_abstract.py has 354 lines of code (exceeds 250 allowed). Consider refactoring.

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#! /usr/bin/python3
# vim: set expandtab tabstop=4 shiftwidth=4 :
"""Module to define logic common to all comics."""

import json

Function check_everything_is_ok has a Cognitive Complexity of 27 (exceeds 5 allowed). Consider refactoring.

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    def check_everything_is_ok(cls):
        """Perform tests on the database to check that everything is ok."""
        cls.log("start")
        print(cls.name, ": about to check")
        comics = cls.get_comics()  # cls._load_db()

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GenericComic has 25 functions (exceeds 20 allowed). Consider refactoring.

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class GenericComic(object):
    """Generic class to handle the logic common to all comics

    Attributes :
        name        Name of the comic (for logging, CLI and default output dir)

Function try_to_get_missing_resources has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

    def try_to_get_missing_resources(cls):
        """Download images that might not have been downloaded properly in
        the first place."""
        cls.log("start")
        print(cls.name, ": about to try to get missing resources")

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Function update has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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    def update(cls, saving_freq=100):
        """Update the database : get the latest comics and save in the DB.

        This is a wrapper around get_next_comic() providing the following
        generic features :

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