chrislit/abydos

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abydos/distance/_jaro_winkler.py

Summary

Maintainability
C
1 day
Test Coverage

Function sim has a Cognitive Complexity of 47 (exceeds 5 allowed). Consider refactoring.
Open

    def sim(self, src: str, tar: str) -> float:
        """Return the Jaro or Jaro-Winkler similarity of two strings.

        Parameters
        ----------
Severity: Minor
Found in abydos/distance/_jaro_winkler.py - About 7 hrs 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

Cyclomatic complexity is too high in method sim. (31)
Open

    def sim(self, src: str, tar: str) -> float:
        """Return the Jaro or Jaro-Winkler similarity of two strings.

        Parameters
        ----------
Severity: Minor
Found in abydos/distance/_jaro_winkler.py by radon

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 class JaroWinkler. (16)
Open

class JaroWinkler(_Distance):
    """Jaro-Winkler distance.

    Jaro(-Winkler) distance is a string edit distance initially proposed by
    Jaro and extended by Winkler :cite:`Jaro:1989,Winkler:1990`.
Severity: Minor
Found in abydos/distance/_jaro_winkler.py by radon

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

    def __init__(
Severity: Minor
Found in abydos/distance/_jaro_winkler.py - About 45 mins to fix

    Refactor this function to reduce its Cognitive Complexity from 47 to the 15 allowed.
    Open

        def sim(self, src: str, tar: str) -> float:
    Severity: Critical
    Found in abydos/distance/_jaro_winkler.py by sonar-python

    Cognitive Complexity is a measure of how hard the control flow of a function is to understand. Functions with high Cognitive Complexity will be difficult to maintain.

    See

    Too many branches (19/12)
    Open

        def sim(self, src: str, tar: str) -> float:
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    Used when a function or method has too many branches, making it hard to follow.

    Too many local variables (21/15)
    Open

        def sim(self, src: str, tar: str) -> float:
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    Used when a function or method has too many local variables.

    Too many statements (52/50)
    Open

        def sim(self, src: str, tar: str) -> float:
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    Used when a function or method has too many statements. You should then split it in smaller functions / methods.

    Too many arguments (6/5)
    Open

        def __init__(
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    Used when a function or method takes too many arguments.

    Wrong hanging indentation before block (add 4 spaces).
    Open

            self,
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO self, ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

            mode: str = 'winkler',
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO mode: str = 'winkler', ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

            **kwargs: Any
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO **kwargs: Any ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

            boost_threshold: float = 0.7,
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO boost_threshold: float = 0.7, ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

                    and (2 * num_com >= minv + i)
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO and (2 * num_com >= minv + i) ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

                    self._long_strings
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO self.longstrings ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

                    and (num_com > i + 1)
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO and (num_com > i + 1) ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

                    and (minv > 4)
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO and (minv > 4) ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

            qval: int = 1,
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO qval: int = 1, ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

            long_strings: bool = False,
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO long_strings: bool = False, ^ |

    Wrong hanging indentation before block (add 4 spaces).
    Open

            scaling_factor: float = 0.1,
    Severity: Info
    Found in abydos/distance/_jaro_winkler.py by pylint

    TODO scaling_factor: float = 0.1, ^ |

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