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source = '''# line 1
'A module docstring.'
import sys, inspect
# line 5
# line 7
def spam(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h):
eggs(b + d, c + f)
# line 11
def eggs(x, y):
"A docstring."
global fr, st
fr = inspect.currentframe()
st = inspect.stack()
p = x
q = y / 0
# line 20
class StupidGit:
"""A longer,
indented
docstring."""
# line 27
def abuse(self, a, b, c):
"""Another
\tdocstring
containing
\ttabs
\t
"""
self.argue(a, b, c)
# line 40
def argue(self, a, b, c):
try:
spam(a, b, c)
except:
self.ex = sys.exc_info()
self.tr = inspect.trace()
# line 48
class MalodorousPervert(StupidGit):
pass
class ParrotDroppings:
pass
class FesteringGob(MalodorousPervert, ParrotDroppings):
pass
'''
# Functions tested in this suite:
# ismodule, isclass, ismethod, isfunction, istraceback, isframe, iscode,
# isbuiltin, isroutine, getmembers, getdoc, getfile, getmodule,
# getsourcefile, getcomments, getsource, getclasstree, getargspec,
# getargvalues, formatargspec, formatargvalues, currentframe, stack, trace
from test_support import TestFailed, TESTFN
import sys, imp, os, string
def test(assertion, message, *args):
if not assertion:
raise TestFailed, message % args
import inspect
file = open(TESTFN, 'w')
file.write(source)
file.close()
# Note that load_source creates file TESTFN+'c' or TESTFN+'o'.
mod = imp.load_source('testmod', TESTFN)
files_to_clean_up = [TESTFN, TESTFN + 'c', TESTFN + 'o']
def istest(func, exp):
obj = eval(exp)
test(func(obj), '%s(%s)' % (func.__name__, exp))
for other in [inspect.isbuiltin, inspect.isclass, inspect.iscode,
inspect.isframe, inspect.isfunction, inspect.ismethod,
inspect.ismodule, inspect.istraceback]:
if other is not func:
test(not other(obj), 'not %s(%s)' % (other.__name__, exp))
git = mod.StupidGit()
try:
1/0
except:
tb = sys.exc_traceback
istest(inspect.isbuiltin, 'sys.exit')
istest(inspect.isbuiltin, '[].append')
istest(inspect.isclass, 'mod.StupidGit')
istest(inspect.iscode, 'mod.spam.func_code')
istest(inspect.isframe, 'tb.tb_frame')
istest(inspect.isfunction, 'mod.spam')
istest(inspect.ismethod, 'mod.StupidGit.abuse')
istest(inspect.ismethod, 'git.argue')
istest(inspect.ismodule, 'mod')
istest(inspect.istraceback, 'tb')
test(inspect.isroutine(mod.spam), 'isroutine(mod.spam)')
test(inspect.isroutine([].count), 'isroutine([].count)')
classes = inspect.getmembers(mod, inspect.isclass)
test(classes ==
[('FesteringGob', mod.FesteringGob),
('MalodorousPervert', mod.MalodorousPervert),
('ParrotDroppings', mod.ParrotDroppings),
('StupidGit', mod.StupidGit)], 'class list')
tree = inspect.getclasstree(map(lambda x: x[1], classes), 1)
test(tree ==
[(mod.ParrotDroppings, ()),
(mod.StupidGit, ()),
[(mod.MalodorousPervert, (mod.StupidGit,)),
[(mod.FesteringGob, (mod.MalodorousPervert, mod.ParrotDroppings))
]
]
], 'class tree')
functions = inspect.getmembers(mod, inspect.isfunction)
test(functions == [('eggs', mod.eggs), ('spam', mod.spam)], 'function list')
test(inspect.getdoc(mod) == 'A module docstring.', 'getdoc(mod)')
test(inspect.getcomments(mod) == '# line 1\n', 'getcomments(mod)')
test(inspect.getmodule(mod.StupidGit) == mod, 'getmodule(mod.StupidGit)')
test(inspect.getfile(mod.StupidGit) == TESTFN, 'getfile(mod.StupidGit)')
test(inspect.getsourcefile(mod.spam) == TESTFN, 'getsourcefile(mod.spam)')
test(inspect.getsourcefile(git.abuse) == TESTFN, 'getsourcefile(git.abuse)')
def sourcerange(top, bottom):
lines = string.split(source, '\n')
return string.join(lines[top-1:bottom], '\n') + '\n'
test(inspect.getsource(git.abuse) == sourcerange(29, 39),
'getsource(git.abuse)')
test(inspect.getsource(mod.StupidGit) == sourcerange(21, 46),
'getsource(mod.StupidGit)')
test(inspect.getdoc(mod.StupidGit) ==
'A longer,\n\nindented\n\ndocstring.', 'getdoc(mod.StupidGit)')
test(inspect.getdoc(git.abuse) ==
'Another\n\ndocstring\n\ncontaining\n\ntabs\n\n', 'getdoc(git.abuse)')
test(inspect.getcomments(mod.StupidGit) == '# line 20\n',
'getcomments(mod.StupidGit)')
args, varargs, varkw, defaults = inspect.getargspec(mod.eggs)
test(args == ['x', 'y'], 'mod.eggs args')
test(varargs == None, 'mod.eggs varargs')
test(varkw == None, 'mod.eggs varkw')
test(defaults == None, 'mod.eggs defaults')
test(inspect.formatargspec(args, varargs, varkw, defaults) ==
'(x, y)', 'mod.eggs formatted argspec')
args, varargs, varkw, defaults = inspect.getargspec(mod.spam)
test(args == ['a', 'b', 'c', 'd', ['e', ['f']]], 'mod.spam args')
test(varargs == 'g', 'mod.spam varargs')
test(varkw == 'h', 'mod.spam varkw')
test(defaults == (3, (4, (5,))), 'mod.spam defaults')
test(inspect.formatargspec(args, varargs, varkw, defaults) ==
'(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h)',
'mod.spam formatted argspec')
git.abuse(7, 8, 9)
istest(inspect.istraceback, 'git.ex[2]')
istest(inspect.isframe, 'mod.fr')
test(len(git.tr) == 3, 'trace() length')
test(git.tr[0][1:] == (TESTFN, 46, 'argue',
[' self.tr = inspect.trace()\n'], 0),
'trace() row 2')
test(git.tr[1][1:] == (TESTFN, 9, 'spam', [' eggs(b + d, c + f)\n'], 0),
'trace() row 2')
test(git.tr[2][1:] == (TESTFN, 18, 'eggs', [' q = y / 0\n'], 0),
'trace() row 3')
test(len(mod.st) >= 5, 'stack() length')
test(mod.st[0][1:] ==
(TESTFN, 16, 'eggs', [' st = inspect.stack()\n'], 0),
'stack() row 1')
test(mod.st[1][1:] ==
(TESTFN, 9, 'spam', [' eggs(b + d, c + f)\n'], 0),
'stack() row 2')
test(mod.st[2][1:] ==
(TESTFN, 43, 'argue', [' spam(a, b, c)\n'], 0),
'stack() row 3')
test(mod.st[3][1:] ==
(TESTFN, 39, 'abuse', [' self.argue(a, b, c)\n'], 0),
'stack() row 4')
args, varargs, varkw, locals = inspect.getargvalues(mod.fr)
test(args == ['x', 'y'], 'mod.fr args')
test(varargs == None, 'mod.fr varargs')
test(varkw == None, 'mod.fr varkw')
test(locals == {'x': 11, 'p': 11, 'y': 14}, 'mod.fr locals')
test(inspect.formatargvalues(args, varargs, varkw, locals) ==
'(x=11, y=14)', 'mod.fr formatted argvalues')
args, varargs, varkw, locals = inspect.getargvalues(mod.fr.f_back)
test(args == ['a', 'b', 'c', 'd', ['e', ['f']]], 'mod.fr.f_back args')
test(varargs == 'g', 'mod.fr.f_back varargs')
test(varkw == 'h', 'mod.fr.f_back varkw')
test(inspect.formatargvalues(args, varargs, varkw, locals) ==
'(a=7, b=8, c=9, d=3, (e=4, (f=5,)), *g=(), **h={})',
'mod.fr.f_back formatted argvalues')
for fname in files_to_clean_up:
try:
os.unlink(fname)
except:
pass
# Test classic-class method resolution order.
class A: pass
class B(A): pass
class C(A): pass
class D(B, C): pass
expected = (D, B, A, C)
got = inspect.getmro(D)
test(expected == got, "expected %r mro, got %r", expected, got)
# The same w/ new-class MRO.
class A(object): pass
class B(A): pass
class C(A): pass
class D(B, C): pass
expected = (D, B, C, A, object)
got = inspect.getmro(D)
test(expected == got, "expected %r mro, got %r", expected, got)
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