GoogleCloudPlatform / appengine-python-standard

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 5,106 units with 45,761 lines of code in units (83.0% of code).

1 very complex units (180 lines of code)
15 complex units (1,275 lines of code)
196 medium complex units (8,515 lines of code)
458 simple units (10,178 lines of code)
4,436 very simple units (25,613 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 _RetrieveURL() in src/google/appengine/api/urlfetch_stub.py	180	56	10
def mTokens() in src/google/appengine/api/search/ExpressionLexer.py	138	46	1
def __init__() in src/google/appengine/ext/db/__init__.py	101	39	6
def CheckInitialized() in src/google/appengine/api/appinfo.py	74	38	1
def composite_async() in src/google/appengine/api/images/__init__.py	80	36	7
def __init__() in src/google/appengine/api/taskqueue/taskqueue.py	99	35	3
def CompositeIndexForQuery() in src/google/appengine/datastore/datastore_index.py	65	34	1
def run_to_queue() in src/google/appengine/ext/ndb/query.py	100	31	4
def v3_property_to_v1_value() in src/google/appengine/datastore/datastore_pbs.py	86	30	4
def mESC_SEQ() in src/google/appengine/api/search/ExpressionLexer.py	35	30	1
def setup_env() in src/google/appengine/ext/testbed/__init__.py	49	30	3
def __init__() in src/google/appengine/ext/ndb/query.py	73	30	10
def _ReferenceFromPairs() in src/google/appengine/ext/ndb/key.py	83	30	4
def v3_property_to_v4_value() in src/google/appengine/datastore/datastore_pbs.py	88	29	4
def mTEXT() in src/google/appengine/api/search/QueryLexer.py	48	29	1
def name() in src/google/appengine/api/search/ExpressionParser.py	156	28	1
def CheckQuery() in src/google/appengine/datastore/datastore_stub_util.py	95	25	4
def TranslateRetryParameters() in src/google/appengine/api/queueinfo.py	40	25	1
def mFLOAT() in src/google/appengine/api/search/ExpressionLexer.py	88	25	1
def _CheckFilter() in src/google/appengine/api/datastore.py	57	25	3
def _ProcessTransforms() in src/google/appengine/api/images/images_stub.py	46	25	4
def reduceToSingleOperationPerIndex() in src/google/appengine/_internal/antlr3/streams.py	45	25	2
def transaction() in src/google/appengine/ext/ndb/context.py	97	25	3
def _ConstructReference() in src/google/appengine/ext/ndb/key.py	67	25	9
def _to_pb() in src/google/appengine/datastore/datastore_query.py	50	24	3
def find_definition() in src/google/appengine/_internal/protorpc/messages.py	60	24	3
def _parse_from_args() in src/google/appengine/ext/ndb/key.py	63	24	5
def _SetupIndexes() in src/google/appengine/datastore/datastore_stub_util.py	56	23	2
def mTEXT_ESC() in src/google/appengine/api/search/QueryLexer.py	29	23	1
def comparator() in src/google/appengine/api/search/QueryParser.py	109	23	1
def _update_dimensions() in src/google/appengine/api/images/__init__.py	35	23	1
def UpdateIndexYaml() in src/google/appengine/datastore/datastore_stub_index.py	88	22	2
def mTokens() in src/google/appengine/api/search/QueryLexer.py	66	22	1
def SimplifyNode() in src/google/appengine/api/search/query_parser.py	40	22	2
def _Dynamic_ListIndexes() in src/google/appengine/api/search/simple_search_stub.py	58	21	3
def Run() in src/google/appengine/api/datastore.py	65	21	2
def _db_set_value() in src/google/appengine/ext/ndb/model.py	63	21	4
def Commit() in src/google/appengine/datastore/datastore_stub_util.py	69	20	1
def format_proto_file() in src/google/appengine/_internal/protorpc/generate_proto.py	59	20	3
def _help_tasklet_along() in src/google/appengine/ext/ndb/tasklets.py	82	20	7
def intersect() in src/google/appengine/datastore/datastore_query.py	52	19	2
def _to_pb_v1() in src/google/appengine/datastore/datastore_query.py	46	19	3
def _get_fetch_result() in src/google/appengine/api/urlfetch.py	69	19	1
def _MatchTextField() in src/google/appengine/api/search/stub/document_matcher.py	48	19	4
def _Dynamic_Set() in src/google/appengine/api/memcache/memcache_stub.py	40	19	3
def toString() in src/google/appengine/_internal/antlr3/streams.py	49	19	2
def _db_get_value() in src/google/appengine/ext/ndb/model.py	48	19	3
def MinimalCompositeIndexForQuery() in src/google/appengine/datastore/datastore_index.py	49	18	2
def v4_to_v3_property() in src/google/appengine/datastore/datastore_pbs.py	45	18	6
def __apply_v1_mutation() in src/google/appengine/datastore/cloud_datastore_v1_stub.py	39	18	5