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src/libertem/masks.py

Summary

Maintainability
C
1 day
Test Coverage

Function radial_bins has a Cognitive Complexity of 32 (exceeds 5 allowed). Consider refactoring.
Open

def radial_bins(centerX, centerY, imageSizeX, imageSizeY,
        radius=None, radius_inner=0, n_bins=None, normalize=False, use_sparse=None, dtype=None):
    '''
    Generate antialiased rings
    '''
Severity: Minor
Found in src/libertem/masks.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

Cyclomatic complexity is too high in function radial_bins. (18)
Open

def radial_bins(centerX, centerY, imageSizeX, imageSizeY,
        radius=None, radius_inner=0, n_bins=None, normalize=False, use_sparse=None, dtype=None):
    '''
    Generate antialiased rings
    '''
Severity: Minor
Found in src/libertem/masks.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 function rectangular. (6)
Open

def rectangular(X, Y, Width, Height, imageSizeX, imageSizeY):
    """
    Make a rectangular mask as a 2D array of bool.
    Parameters
    ----------
Severity: Minor
Found in src/libertem/masks.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 radial_bins has 10 arguments (exceeds 8 allowed). Consider refactoring.
Open

def radial_bins(centerX, centerY, imageSizeX, imageSizeY,
Severity: Major
Found in src/libertem/masks.py - About 45 mins to fix

    Function "radial_bins" has 10 parameters, which is greater than the 7 authorized.
    Open

    def radial_bins(centerX, centerY, imageSizeX, imageSizeY,
        radius=None, radius_inner=0, n_bins=None, normalize=False, use_sparse=None, dtype=None):
    Severity: Major
    Found in src/libertem/masks.py by sonar-python

    A long parameter list can indicate that a new structure should be created to wrap the numerous parameters or that the function is doing too many things.

    Noncompliant Code Example

    With a maximum number of 4 parameters:

    def do_something(param1, param2, param3, param4, param5):
    ...

    Compliant Solution

    def do_something(param1, param2, param3, param4):
    ...

    Refactor this function to reduce its Cognitive Complexity from 32 to the 15 allowed.
    Open

    def radial_bins(centerX, centerY, imageSizeX, imageSizeY,
    Severity: Critical
    Found in src/libertem/masks.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

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

            x, y = np.ogrid[-centerY:imageSizeY-centerY, -centerX:imageSizeX-centerX]
    Severity: Major
    Found in src/libertem/masks.py and 1 other location - About 1 hr to fix
    src/libertem/masks.py on lines 164..164

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 45.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

        x, y = np.ogrid[-centerY:imageSizeY-centerY, -centerX:imageSizeX-centerX]
    Severity: Major
    Found in src/libertem/masks.py and 1 other location - About 1 hr to fix
    src/libertem/masks.py on lines 48..48

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 45.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

                if normalize:  # Make sure each bin has a sum of 1
                s = vals.sum()
                if not np.isclose(s, 0):
                    vals /= s
    Severity: Minor
    Found in src/libertem/masks.py and 1 other location - About 45 mins to fix
    src/libertem/masks.py on lines 319..322

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 35.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

                if normalize:  # Make sure each bin has a sum of 1
                s = vals.sum()
                if not np.isclose(s, 0):
                    vals /= s
    Severity: Minor
    Found in src/libertem/masks.py and 1 other location - About 45 mins to fix
    src/libertem/masks.py on lines 325..328

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 35.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

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