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tabbycat/breakqual/liveness.py

Summary

Maintainability
B
5 hrs
Test Coverage
A
95%

Cyclomatic complexity is too high in function liveness_twoteam. (13)
Open

def liveness_twoteam(is_general, current_round, break_size, total_teams, total_rounds, team_scores=[]):

    if total_teams < break_size or (not is_general and len(team_scores) <= break_size):
        return 0, -1  # special case, everyone is safe
Severity: Minor
Found in tabbycat/breakqual/liveness.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 liveness_bp. (13)
Open

def liveness_bp(is_general, current_round, break_size, total_teams, total_rounds, team_scores=[]):

    if total_teams < break_size or (not is_general and len(team_scores) <= break_size):
        return -1, -1  # special case, everyone is safe
Severity: Minor
Found in tabbycat/breakqual/liveness.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 liveness_bp has 6 arguments (exceeds 4 allowed). Consider refactoring.
Open

def liveness_bp(is_general, current_round, break_size, total_teams, total_rounds, team_scores=[]):
Severity: Minor
Found in tabbycat/breakqual/liveness.py - About 45 mins to fix

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

    def liveness_twoteam(is_general, current_round, break_size, total_teams, total_rounds, team_scores=[]):
    Severity: Minor
    Found in tabbycat/breakqual/liveness.py - About 45 mins to fix

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

          if is_general:

        # First index for which sum_d[i] > break_size, i.e. highest impossible-to-break.
        index = next((i for i, x in enumerate(sum_d) if x > break_size), max_points+1)
        highest_nonbreaking = max_points - index  # after total_rounds rounds
      Severity: Major
      Found in tabbycat/breakqual/liveness.py and 1 other location - About 2 hrs to fix
      tabbycat/breakqual/liveness.py on lines 49..53

      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 68.

      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

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

          if is_general:
        # First index for which sum_d[i] > break_size, i.e. highest impossible-to-break.
        index = next((i for i, x in enumerate(sum_d) if x > break_size), total_rounds+1)
        highest_nonbreaking = total_rounds - index  # after total_rounds rounds
        dead = highest_nonbreaking - rounds_to_go - 1
      Severity: Major
      Found in tabbycat/breakqual/liveness.py and 1 other location - About 2 hrs to fix
      tabbycat/breakqual/liveness.py on lines 92..97

      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 68.

      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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