src/scripts/_common.py
Cyclomatic complexity is too high in function get_os. (6) Open
Open
def get_os():
if _platform == "linux" or _platform == "linux2":
return OS.LINUX
elif _platform == "darwin":
return OS.MAC
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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. |
Rename function "cd" to match the regular expression ^[a-z_][a-z0-9_]{2,}$. Open
Open
def cd(newdir):
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Shared coding conventions allow teams to collaborate efficiently. This rule checks that all function names match a provided regular expression.
Noncompliant Code Example
With the default provided regular expression: ^[a-z_][a-z0-9_]{2,30}$
def MyFunction(a,b): ...
Compliant Solution
def my_function(a,b): ...