netflix / spectator-py - Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 100 units with 352 lines of code in units (64.9% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
1 medium complex units (28 lines of code)
1 simple units (9 lines of code)
98 very simple units (315 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
def new_writer() in spectator/writer/new_writer.py	28	11	1
def validate_tags() in spectator/common_tags.py	9	6	2
def _add_non_empty() in spectator/common_tags.py	9	4	4
def calculate_location() in spectator/config.py	9	4	1
def is_valid_output_location() in spectator/writer/new_writer.py	6	4	1
def __init__() in spectator/writer/udp_writer.py	11	4	4
def new_id() in spectator/registry.py	7	3	3
def close() in spectator/registry.py	6	2	1
def __init__() in spectator/config.py	5	2	4
def calculate_extra_common_tags() in spectator/config.py	5	2	2
def increment() in spectator/meter/counter.py	4	2	3
def record() in spectator/meter/dist_summary.py	4	2	2
def record() in spectator/meter/timer.py	4	2	2
def record() in spectator/meter/percentile_timer.py	4	2	2
def record() in spectator/meter/percentile_dist_summary.py	4	2	2
def __init__() in spectator/meter/gauge.py	7	2	3
def __init__() in spectator/meter/meter_id.py	7	2	4
def _validate_tags() in spectator/meter/meter_id.py	7	2	3
def _to_spectatord_id() in spectator/meter/meter_id.py	7	2	4
def with_tags() in spectator/meter/meter_id.py	6	2	3
def __eq__() in spectator/meter/meter_id.py	4	2	2
def write() in spectator/writer/file_writer.py	6	2	2
def write() in spectator/writer/udp_writer.py	7	2	2
def parse_protocol_line() in spectator/protocol_parser.py	10	2	1
def __init__() in spectator/stopwatch.py	3	1	4
def __enter__() in spectator/stopwatch.py	2	1	1
def __exit__() in spectator/stopwatch.py	2	1	4
def duration() in spectator/stopwatch.py	2	1	1
def __init__() in spectator/registry.py	5	1	2
def writer() in spectator/registry.py	2	1	1
def age_gauge() in spectator/registry.py	2	1	3
def age_gauge_with_id() in spectator/registry.py	2	1	2
def counter() in spectator/registry.py	2	1	3
def counter_with_id() in spectator/registry.py	2	1	2
def distribution_summary() in spectator/registry.py	2	1	3
def distribution_summary_with_id() in spectator/registry.py	2	1	2
def gauge() in spectator/registry.py	2	1	4
def gauge_with_id() in spectator/registry.py	2	1	3
def max_gauge() in spectator/registry.py	2	1	3
def max_gauge_with_id() in spectator/registry.py	2	1	2
def monotonic_counter() in spectator/registry.py	2	1	3
def monotonic_counter_with_id() in spectator/registry.py	2	1	2
def monotonic_counter_uint() in spectator/registry.py	2	1	3
def monotonic_counter_uint_with_id() in spectator/registry.py	2	1	2
def pct_distribution_summary() in spectator/registry.py	2	1	3
def pct_distribution_summary_with_id() in spectator/registry.py	2	1	2
def pct_timer() in spectator/registry.py	2	1	3
def pct_timer_with_id() in spectator/registry.py	2	1	2
def timer() in spectator/registry.py	2	1	3
def timer_with_id() in spectator/registry.py	2	1	2