gistfile1.py

Nearly half of the functions/methods I scanned were zero args (48.7). Which was more than I expected. I haven’t dug enough to see if there’s a flock of canaries in there or not. The code to produce that table is here:import inspect
from collections import Counter
import importlib
import sys
import os

def countRoutine(routine):
    try:
        spec = inspect.getfullargspec(routine)
    except TypeError:
        return -1
    count = len(spec.args)
    if len(spec.args) > 0 and spec.args[0] in {'self', 'cls'}:
        count -= 1
    if spec.defaults is not None:
        count -= len(spec.defaults)
    return count

def analyze(targetModule=inspect):
    histogram = Counter()
    for name, f in inspect.getmembers(targetModule, inspect.isfunction):
        histogram[countRoutine(f)] += 1
    for _, c in inspect.getmembers(targetModule, inspect.isclass):
        for name, m in inspect.getmembers(c, inspect.isroutine):
            histogram[countRoutine(m)] += 1
    ascending = [' '.join((str(a), str(b))) for a, b in sorted(histogram.items())]
    return '  '.join(ascending)

def printHistogram(histogram):
    total = sum(histogram.values())
    for argCount, occurences in sorted(histogram.items()):
        print('{:2} x {:5} ({:4.1f}%)'.format(argCount, occurences, (occurences * 100 / total)))

def analyzeAll():
    blacklist = {'ctypes.test', 'idlelib.idle', 'test.', 'tkinter.__main__'}
    base = '/Users/travisg/Downloads/pypy3-2.1-beta1-osx64/lib-python/3'
    histogram = Counter()
    keepGoing = 0
    for root, dirs, files in os.walk(base):
        for file in files:
            if file.endswith('.py') and not file.startswith('__init__'):
                path = root[len(base):].split('/')[1:] + [os.path.splitext(file)[0]]
                path = '.'.join(path)
                if any(path.startswith(prefix) for prefix in blacklist):
                    continue
                keepGoing += 1
                if not keepGoing:
                    printHistogram(histogram)
                    return
                print(keepGoing, path)
                r, w = os.pipe()
                pid = os.fork()
                if pid:
                    os.close(w)
                    r = os.fdopen(r)
                    result = r.read()
                    os.waitpid(pid, 0)
                else:
                    os.close(r)
                    w = os.fdopen(w, 'w')
                    module = importlib.import_module(path)
                    w.write(analyze(module))
                    w.close()
                    sys.exit(0)
                print(result)
                numbers = (int(a) for a in result.split())
                histogram.update(dict(zip(numbers, numbers)))
    printHistogram(histogram)

if __name__ == '__main__':
    analyzeAll()