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qutip/qutip

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qutip/core/data/eigen.py

Summary

Maintainability
B
5 hrs
Test Coverage

Function _eigs_csr has a Cognitive Complexity of 48 (exceeds 20 allowed). Consider refactoring.
Open

def _eigs_csr(data, isherm, vecs, eigvals, num_large, num_small, tol, maxiter):
    """
    Internal functions for computing eigenvalues and eigenstates for a sparse
    matrix.
    """
Severity: Minor
Found in qutip/core/data/eigen.py - About 4 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 _eigs_dense has a Cognitive Complexity of 24 (exceeds 20 allowed). Consider refactoring.
Open

def _eigs_dense(data, isherm, vecs, eigvals, num_large, num_small):
    """
    Internal functions for computing eigenvalues and eigenstates for a dense
    matrix.
    """
Severity: Minor
Found in qutip/core/data/eigen.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

Module level import not at top of file
Open

from .dispatch import Dispatcher as _Dispatcher
Severity: Minor
Found in qutip/core/data/eigen.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

Module level import not at top of file
Open

import inspect as _inspect
Severity: Minor
Found in qutip/core/data/eigen.py by pep8

Place imports at the top of the file.

Always put imports at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

Okay: import os
Okay: # this is a comment\nimport os
Okay: '''this is a module docstring'''\nimport os
Okay: r'''this is a module docstring'''\nimport os
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nelse:\n\tpass\nimport y
Okay:
try:\n\timport x\nexcept ImportError:\n\tpass\nfinally:\n\tpass\nimport y
E402: a=1\nimport os
E402: 'One string'\n"Two string"\nimport os
E402: a=1\nfrom sys import x

Okay: if x:\n    import os

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