betteridiot/bamnostic

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bamnostic/core.py

Summary

Maintainability
C
7 hrs
Test Coverage

Function _tagger has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
Open

    def _tagger(self):
        """Processes the variety of tags that accompany sequencing reads

        The BAM format does not store the length of string and hex-formatted byte
        arrays. These are null-terminated. Due to this, when parsing the byte stream,
Severity: Minor
Found in bamnostic/core.py - About 2 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

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

    def __init__(
        self,
        filepath_or_object,
        mode="rb",
        max_cache=128,
Severity: Minor
Found in bamnostic/core.py - About 1 hr 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 get_cigar_stats has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
Open

    def get_cigar_stats(self):
        """Gets the counts of each CIGAR operation in the read and number of
        nucleotides related to those given operations.

        Returns:
Severity: Minor
Found in bamnostic/core.py - About 1 hr 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 _range_popper has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

    def _range_popper(self, interval_start, interval_stop=None, front=True):
        """Simple pop method that accepts a range instead of a single value. Modifies the original bytearray by removing items

        Note:
            Pops from the front of the list by default. If `front` is set to `False`, it
Severity: Minor
Found in bamnostic/core.py - About 55 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 __init__ has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

    def __init__(self, _io):
        """Instantiating the read parser just needs access to the BGZF io.object

        Args:
            io (BgzfReader): parser for processing BGZF files
Severity: Minor
Found in bamnostic/core.py - About 55 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 _qual_builder has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def _qual_builder(self):
        """Pulls out the quality information for the given read

        Attributes:
            query_qualities (:py:obj:`array.array`): Array of Phred quality scores for each base
Severity: Minor
Found in bamnostic/core.py - About 25 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 to_bam has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def to_bam(bam_file):
        """Writes the alignment record to a BAM file

        Args:
            bam_file (string or :py:obj:`bamnostic.bam.BamWriter`): BAM file path or open bam file in a write mode
Severity: Minor
Found in bamnostic/core.py - About 25 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

Invalid escape sequence '\l'
Open

    score (:math:`Q`) is defined as :math:`Q=-10\log_{10}P`, where :math:`P`
Severity: Minor
Found in bamnostic/core.py by pep8

Invalid escape sequences are deprecated in Python 3.6.

Okay: regex = r'\.png$'
W605: regex = '\.png$'

Line break after binary operator
Open

            hash(self.reference_name) ^
Severity: Minor
Found in bamnostic/core.py by pep8

Avoid breaks after binary operators.

The preferred place to break around a binary operator is before the
operator, not after it.

W504: (width == 0 +\n height == 0)
W504: (width == 0 and\n height == 0)
W504: var = (1 &\n       ~2)

Okay: foo(\n    -x)
Okay: foo(x\n    [])
Okay: x = '''\n''' + ''
Okay: x = '' + '''\n'''
Okay: foo(x,\n    -y)
Okay: foo(x,  # comment\n    -y)

The following should be W504 but unary_context is tricky with these
Okay: var = (1 /\n       -2)
Okay: var = (1 +\n       -1 +\n       -2)

Unexpected spaces around keyword / parameter equals
Open

                with bam.BamWriter(bam_file, mode = 'ab') as bam_out:
Severity: Minor
Found in bamnostic/core.py by pep8

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):

Line break after binary operator
Open

            hash(self.read_name) ^
Severity: Minor
Found in bamnostic/core.py by pep8

Avoid breaks after binary operators.

The preferred place to break around a binary operator is before the
operator, not after it.

W504: (width == 0 +\n height == 0)
W504: (width == 0 and\n height == 0)
W504: var = (1 &\n       ~2)

Okay: foo(\n    -x)
Okay: foo(x\n    [])
Okay: x = '''\n''' + ''
Okay: x = '' + '''\n'''
Okay: foo(x,\n    -y)
Okay: foo(x,  # comment\n    -y)

The following should be W504 but unary_context is tricky with these
Okay: var = (1 /\n       -2)
Okay: var = (1 +\n       -1 +\n       -2)

Unexpected spaces around keyword / parameter equals
Open

                with bam.BamWriter(bam_file, mode = 'ab') as bam_out:
Severity: Minor
Found in bamnostic/core.py by pep8

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):

Invalid escape sequence '\l'
Open

            mapq (int): :math:`-10\log_{10}P` mapping quality of read.
Severity: Minor
Found in bamnostic/core.py by pep8

Invalid escape sequences are deprecated in Python 3.6.

Okay: regex = r'\.png$'
W605: regex = '\.png$'

Line break after binary operator
Open

            self.__class__ == other.__class__ and
Severity: Minor
Found in bamnostic/core.py by pep8

Avoid breaks after binary operators.

The preferred place to break around a binary operator is before the
operator, not after it.

W504: (width == 0 +\n height == 0)
W504: (width == 0 and\n height == 0)
W504: var = (1 &\n       ~2)

Okay: foo(\n    -x)
Okay: foo(x\n    [])
Okay: x = '''\n''' + ''
Okay: x = '' + '''\n'''
Okay: foo(x,\n    -y)
Okay: foo(x,  # comment\n    -y)

The following should be W504 but unary_context is tricky with these
Okay: var = (1 /\n       -2)
Okay: var = (1 +\n       -1 +\n       -2)

Line break after binary operator
Open

            hash(self.pos) ^
Severity: Minor
Found in bamnostic/core.py by pep8

Avoid breaks after binary operators.

The preferred place to break around a binary operator is before the
operator, not after it.

W504: (width == 0 +\n height == 0)
W504: (width == 0 and\n height == 0)
W504: var = (1 &\n       ~2)

Okay: foo(\n    -x)
Okay: foo(x\n    [])
Okay: x = '''\n''' + ''
Okay: x = '' + '''\n'''
Okay: foo(x,\n    -y)
Okay: foo(x,  # comment\n    -y)

The following should be W504 but unary_context is tricky with these
Okay: var = (1 /\n       -2)
Okay: var = (1 +\n       -1 +\n       -2)

There are no issues that match your filters.

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