CastagnaIT/plugin.video.netflix

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resources/lib/services/cache_management.py

Summary

Maintainability
B
4 hrs
Test Coverage

CacheManagement has 23 functions (exceeds 20 allowed). Consider refactoring.
Open

class CacheManagement:
    """Cache management"""

    def __init__(self):
        self._identifier_prefix = None
Severity: Minor
Found in resources/lib/services/cache_management.py - About 2 hrs to fix

    Cyclomatic complexity is too high in method delete. (8)
    Open

        def delete(self, bucket, identifier, including_suffixes=False):
            """
            Delete an item from cache bucket
    
            :param including_suffixes: if true will delete all items with the identifier that start with it

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method delete_expired. (7)
    Open

        def delete_expired(self):
            bucket_names_db = []
            timestamp = time()
            for bucket in cache_utils.BUCKETS:
                if bucket['is_persistent']:

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method add. (7)
    Open

        def add(self, bucket, identifier, data, ttl=None, expires=None, delayed_db_op=False):
            """
            Add or update an item to a cache bucket
            :param bucket: bucket where save the data
            :param identifier: key identifier of the data

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method clear. (6)
    Open

        def clear(self, buckets=None, clear_database=True):
            """
            Clear the cache
    
            :param buckets: list of buckets to clear, if not specified clear all the cache

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Function add has 6 arguments (exceeds 4 allowed). Consider refactoring.
    Open

        def add(self, bucket, identifier, data, ttl=None, expires=None, delayed_db_op=False):
    Severity: Minor
    Found in resources/lib/services/cache_management.py - About 45 mins to fix

      Function delete_expired has a Cognitive Complexity of 13 (exceeds 10 allowed). Consider refactoring.
      Open

          def delete_expired(self):
              bucket_names_db = []
              timestamp = time()
              for bucket in cache_utils.BUCKETS:
                  if bucket['is_persistent']:
      Severity: Minor
      Found in resources/lib/services/cache_management.py - About 45 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function clear has a Cognitive Complexity of 12 (exceeds 10 allowed). Consider refactoring.
      Open

          def clear(self, buckets=None, clear_database=True):
              """
              Clear the cache
      
              :param buckets: list of buckets to clear, if not specified clear all the cache
      Severity: Minor
      Found in resources/lib/services/cache_management.py - About 35 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Unexpected spaces around keyword / parameter equals
      Open

                                                 check_same_thread = is_not_thread_safe)

      Don't use spaces around the '=' sign in function arguments.

      Don't use spaces around the '=' sign when used to indicate a
      keyword argument or a default parameter value, except when
      using a type annotation.
      
      Okay: def complex(real, imag=0.0):
      Okay: return magic(r=real, i=imag)
      Okay: boolean(a == b)
      Okay: boolean(a != b)
      Okay: boolean(a <= b)
      Okay: boolean(a >= b)
      Okay: def foo(arg: int = 42):
      Okay: async def foo(arg: int = 42):
      
      E251: def complex(real, imag = 0.0):
      E251: return magic(r = real, i = imag)
      E252: def complex(real, image: float=0.0):

      Unexpected spaces around keyword / parameter equals
      Open

                                                 check_same_thread = is_not_thread_safe)

      Don't use spaces around the '=' sign in function arguments.

      Don't use spaces around the '=' sign when used to indicate a
      keyword argument or a default parameter value, except when
      using a type annotation.
      
      Okay: def complex(real, imag=0.0):
      Okay: return magic(r=real, i=imag)
      Okay: boolean(a == b)
      Okay: boolean(a != b)
      Okay: boolean(a <= b)
      Okay: boolean(a >= b)
      Okay: def foo(arg: int = 42):
      Okay: async def foo(arg: int = 42):
      
      E251: def complex(real, imag = 0.0):
      E251: return magic(r = real, i = imag)
      E252: def complex(real, image: float=0.0):

      There are no issues that match your filters.

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