Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 1da43e5e916949c8e849e656d9d05fa4b9d6836c authored by Benjamin Peterson on 26 June 2009, 13:21:52 UTC
rearrange the sections of the README, so they'll hopefully be more in the order people will interested in
rearrange the sections of the README, so they'll hopefully be more in the order people will interested in
Tip revision: 1da43e5
test_code.py
"""This module includes tests of the code object representation.
>>> def f(x):
... def g(y):
... return x + y
... return g
...
>>> dump(f.__code__)
name: f
argcount: 1
kwonlyargcount: 0
names: ()
varnames: ('x', 'g')
cellvars: ('x',)
freevars: ()
nlocals: 2
flags: 3
consts: ('None', '<code object g>')
>>> dump(f(4).__code__)
name: g
argcount: 1
kwonlyargcount: 0
names: ()
varnames: ('y',)
cellvars: ()
freevars: ('x',)
nlocals: 1
flags: 19
consts: ('None',)
>>> def h(x, y):
... a = x + y
... b = x - y
... c = a * b
... return c
...
>>> dump(h.__code__)
name: h
argcount: 2
kwonlyargcount: 0
names: ()
varnames: ('x', 'y', 'a', 'b', 'c')
cellvars: ()
freevars: ()
nlocals: 5
flags: 67
consts: ('None',)
>>> def attrs(obj):
... print(obj.attr1)
... print(obj.attr2)
... print(obj.attr3)
>>> dump(attrs.__code__)
name: attrs
argcount: 1
kwonlyargcount: 0
names: ('print', 'attr1', 'attr2', 'attr3')
varnames: ('obj',)
cellvars: ()
freevars: ()
nlocals: 1
flags: 67
consts: ('None',)
>>> def optimize_away():
... 'doc string'
... 'not a docstring'
... 53
... 0x53
>>> dump(optimize_away.__code__)
name: optimize_away
argcount: 0
kwonlyargcount: 0
names: ()
varnames: ()
cellvars: ()
freevars: ()
nlocals: 0
flags: 67
consts: ("'doc string'", 'None')
>>> def keywordonly_args(a,b,*,k1):
... return a,b,k1
...
>>> dump(keywordonly_args.__code__)
name: keywordonly_args
argcount: 2
kwonlyargcount: 1
names: ()
varnames: ('a', 'b', 'k1')
cellvars: ()
freevars: ()
nlocals: 3
flags: 67
consts: ('None',)
"""
def consts(t):
"""Yield a doctest-safe sequence of object reprs."""
for elt in t:
r = repr(elt)
if r.startswith("<code object"):
yield "<code object %s>" % elt.co_name
else:
yield r
def dump(co):
"""Print out a text representation of a code object."""
for attr in ["name", "argcount", "kwonlyargcount", "names", "varnames",
"cellvars", "freevars", "nlocals", "flags"]:
print("%s: %s" % (attr, getattr(co, "co_" + attr)))
print("consts:", tuple(consts(co.co_consts)))
def test_main(verbose=None):
from test.support import run_doctest
from test import test_code
run_doctest(test_code, verbose)
if __name__ == '__main__':
test_main()