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test_pydoc.py
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import os
import sys
import contextlib
import importlib.util
import inspect
import pydoc
import py_compile
import keyword
import _pickle
import pkgutil
import re
import stat
import string
import tempfile
import test.support
import time
import types
import typing
import unittest
import urllib.parse
import xml.etree
import xml.etree.ElementTree
import textwrap
from io import StringIO
from collections import namedtuple
from test.support import os_helper
from test.support.script_helper import assert_python_ok
from test.support import threading_helper
from test.support import (reap_children, captured_output, captured_stdout,
captured_stderr, requires_docstrings)
from test.support.os_helper import (TESTFN, rmtree, unlink)
from test import pydoc_mod
class nonascii:
'Це не латиниця'
pass
if test.support.HAVE_DOCSTRINGS:
expected_data_docstrings = (
'dictionary for instance variables (if defined)',
'list of weak references to the object (if defined)',
) * 2
else:
expected_data_docstrings = ('', '', '', '')
expected_text_pattern = """
NAME
test.pydoc_mod - This is a test module for test_pydoc
%s
CLASSES
builtins.object
A
B
C
\x20\x20\x20\x20
class A(builtins.object)
| Hello and goodbye
|\x20\x20
| Methods defined here:
|\x20\x20
| __init__()
| Wow, I have no function!
|\x20\x20
| ----------------------------------------------------------------------
| Data descriptors defined here:
|\x20\x20
| __dict__%s
|\x20\x20
| __weakref__%s
\x20\x20\x20\x20
class B(builtins.object)
| Data descriptors defined here:
|\x20\x20
| __dict__%s
|\x20\x20
| __weakref__%s
|\x20\x20
| ----------------------------------------------------------------------
| Data and other attributes defined here:
|\x20\x20
| NO_MEANING = 'eggs'
|\x20\x20
| __annotations__ = {'NO_MEANING': 'str'}
\x20\x20\x20\x20
class C(builtins.object)
| Methods defined here:
|\x20\x20
| get_answer(self)
| Return say_no()
|\x20\x20
| is_it_true(self)
| Return self.get_answer()
|\x20\x20
| say_no(self)
|\x20\x20
| ----------------------------------------------------------------------
| Data descriptors defined here:
|\x20\x20
| __dict__
| dictionary for instance variables (if defined)
|\x20\x20
| __weakref__
| list of weak references to the object (if defined)
FUNCTIONS
doc_func()
This function solves all of the world's problems:
hunger
lack of Python
war
\x20\x20\x20\x20
nodoc_func()
DATA
__xyz__ = 'X, Y and Z'
VERSION
1.2.3.4
AUTHOR
Benjamin Peterson
CREDITS
Nobody
FILE
%s
""".strip()
expected_text_data_docstrings = tuple('\n | ' + s if s else ''
for s in expected_data_docstrings)
expected_html_pattern = """
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="heading">
<tr bgcolor="#7799ee">
<td valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"> <br><big><big><strong><a href="test.html"><font color="#ffffff">test</font></a>.pydoc_mod</strong></big></big> (version 1.2.3.4)</font></td
><td align=right valign=bottom
><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="file:%s">%s</a>%s</font></td></tr></table>
<p><tt>This is a test module for test_pydoc</tt></p>
<p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ee77aa">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#ee77aa"><tt> </tt></td><td> </td>
<td width="100%%"><dl>
<dt><font face="helvetica, arial"><a href="builtins.html#object">builtins.object</a>
</font></dt><dd>
<dl>
<dt><font face="helvetica, arial"><a href="test.pydoc_mod.html#A">A</a>
</font></dt><dt><font face="helvetica, arial"><a href="test.pydoc_mod.html#B">B</a>
</font></dt><dt><font face="helvetica, arial"><a href="test.pydoc_mod.html#C">C</a>
</font></dt></dl>
</dd>
</dl>
<p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="A">class <strong>A</strong></a>(<a href="builtins.html#object">builtins.object</a>)</font></td></tr>
\x20\x20\x20\x20
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>Hello and goodbye<br> </tt></td></tr>
<tr><td> </td>
<td width="100%%">Methods defined here:<br>
<dl><dt><a name="A-__init__"><strong>__init__</strong></a>()</dt><dd><tt>Wow, I have no function!</tt></dd></dl>
<hr>
Data descriptors defined here:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>%s</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>%s</tt></dd>
</dl>
</td></tr></table> <p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="B">class <strong>B</strong></a>(<a href="builtins.html#object">builtins.object</a>)</font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#ffc8d8"><tt> </tt></td><td> </td>
<td width="100%%">Data descriptors defined here:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>%s</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>%s</tt></dd>
</dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>NO_MEANING</strong> = 'eggs'</dl>
<dl><dt><strong>__annotations__</strong> = {'NO_MEANING': 'str'}</dl>
</td></tr></table> <p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="C">class <strong>C</strong></a>(<a href="builtins.html#object">builtins.object</a>)</font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#ffc8d8"><tt> </tt></td><td> </td>
<td width="100%%">Methods defined here:<br>
<dl><dt><a name="C-get_answer"><strong>get_answer</strong></a>(self)</dt><dd><tt>Return <a href="#C-say_no">say_no</a>()</tt></dd></dl>
<dl><dt><a name="C-is_it_true"><strong>is_it_true</strong></a>(self)</dt><dd><tt>Return self.<a href="#C-get_answer">get_answer</a>()</tt></dd></dl>
<dl><dt><a name="C-say_no"><strong>say_no</strong></a>(self)</dt></dl>
<hr>
Data descriptors defined here:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>dictionary for instance variables (if defined)</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>list of weak references to the object (if defined)</tt></dd>
</dl>
</td></tr></table></td></tr></table><p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#eeaa77">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#eeaa77"><tt> </tt></td><td> </td>
<td width="100%%"><dl><dt><a name="-doc_func"><strong>doc_func</strong></a>()</dt><dd><tt>This function solves all of the world's problems:<br>
hunger<br>
lack of Python<br>
war</tt></dd></dl>
<dl><dt><a name="-nodoc_func"><strong>nodoc_func</strong></a>()</dt></dl>
</td></tr></table><p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#55aa55">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#55aa55"><tt> </tt></td><td> </td>
<td width="100%%"><strong>__xyz__</strong> = 'X, Y and Z'</td></tr></table><p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#7799ee">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Author</strong></big></font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#7799ee"><tt> </tt></td><td> </td>
<td width="100%%">Benjamin Peterson</td></tr></table><p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#7799ee">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Credits</strong></big></font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#7799ee"><tt> </tt></td><td> </td>
<td width="100%%">Nobody</td></tr></table>
""".strip() # ' <- emacs turd
expected_html_data_docstrings = tuple(s.replace(' ', ' ')
for s in expected_data_docstrings)
# output pattern for missing module
missing_pattern = '''\
No Python documentation found for %r.
Use help() to get the interactive help utility.
Use help(str) for help on the str class.'''.replace('\n', os.linesep)
# output pattern for module with bad imports
badimport_pattern = "problem in %s - ModuleNotFoundError: No module named %r"
expected_dynamicattribute_pattern = """
Help on class DA in module %s:
class DA(builtins.object)
| Data descriptors defined here:
|\x20\x20
| __dict__%s
|\x20\x20
| __weakref__%s
|\x20\x20
| ham
|\x20\x20
| ----------------------------------------------------------------------
| Data and other attributes inherited from Meta:
|\x20\x20
| ham = 'spam'
""".strip()
expected_virtualattribute_pattern1 = """
Help on class Class in module %s:
class Class(builtins.object)
| Data and other attributes inherited from Meta:
|\x20\x20
| LIFE = 42
""".strip()
expected_virtualattribute_pattern2 = """
Help on class Class1 in module %s:
class Class1(builtins.object)
| Data and other attributes inherited from Meta1:
|\x20\x20
| one = 1
""".strip()
expected_virtualattribute_pattern3 = """
Help on class Class2 in module %s:
class Class2(Class1)
| Method resolution order:
| Class2
| Class1
| builtins.object
|\x20\x20
| Data and other attributes inherited from Meta1:
|\x20\x20
| one = 1
|\x20\x20
| ----------------------------------------------------------------------
| Data and other attributes inherited from Meta3:
|\x20\x20
| three = 3
|\x20\x20
| ----------------------------------------------------------------------
| Data and other attributes inherited from Meta2:
|\x20\x20
| two = 2
""".strip()
expected_missingattribute_pattern = """
Help on class C in module %s:
class C(builtins.object)
| Data and other attributes defined here:
|\x20\x20
| here = 'present!'
""".strip()
def run_pydoc(module_name, *args, **env):
"""
Runs pydoc on the specified module. Returns the stripped
output of pydoc.
"""
args = args + (module_name,)
# do not write bytecode files to avoid caching errors
rc, out, err = assert_python_ok('-B', pydoc.__file__, *args, **env)
return out.strip()
def get_pydoc_html(module):
"Returns pydoc generated output as html"
doc = pydoc.HTMLDoc()
output = doc.docmodule(module)
loc = doc.getdocloc(pydoc_mod) or ""
if loc:
loc = "<br><a href=\"" + loc + "\">Module Docs</a>"
return output.strip(), loc
def get_pydoc_link(module):
"Returns a documentation web link of a module"
abspath = os.path.abspath
dirname = os.path.dirname
basedir = dirname(dirname(abspath(__file__)))
doc = pydoc.TextDoc()
loc = doc.getdocloc(module, basedir=basedir)
return loc
def get_pydoc_text(module):
"Returns pydoc generated output as text"
doc = pydoc.TextDoc()
loc = doc.getdocloc(pydoc_mod) or ""
if loc:
loc = "\nMODULE DOCS\n " + loc + "\n"
output = doc.docmodule(module)
# clean up the extra text formatting that pydoc performs
patt = re.compile('\b.')
output = patt.sub('', output)
return output.strip(), loc
def get_html_title(text):
# Bit of hack, but good enough for test purposes
header, _, _ = text.partition("</head>")
_, _, title = header.partition("<title>")
title, _, _ = title.partition("</title>")
return title
class PydocBaseTest(unittest.TestCase):
def _restricted_walk_packages(self, walk_packages, path=None):
"""
A version of pkgutil.walk_packages() that will restrict itself to
a given path.
"""
default_path = path or [os.path.dirname(__file__)]
def wrapper(path=None, prefix='', onerror=None):
return walk_packages(path or default_path, prefix, onerror)
return wrapper
@contextlib.contextmanager
def restrict_walk_packages(self, path=None):
walk_packages = pkgutil.walk_packages
pkgutil.walk_packages = self._restricted_walk_packages(walk_packages,
path)
try:
yield
finally:
pkgutil.walk_packages = walk_packages
def call_url_handler(self, url, expected_title):
text = pydoc._url_handler(url, "text/html")
result = get_html_title(text)
# Check the title to ensure an unexpected error page was not returned
self.assertEqual(result, expected_title, text)
return text
class PydocDocTest(unittest.TestCase):
maxDiff = None
@unittest.skipIf(sys.flags.optimize >= 2,
"Docstrings are omitted with -O2 and above")
@unittest.skipIf(hasattr(sys, 'gettrace') and sys.gettrace(),
'trace function introduces __locals__ unexpectedly')
@requires_docstrings
def test_html_doc(self):
result, doc_loc = get_pydoc_html(pydoc_mod)
mod_file = inspect.getabsfile(pydoc_mod)
mod_url = urllib.parse.quote(mod_file)
expected_html = expected_html_pattern % (
(mod_url, mod_file, doc_loc) +
expected_html_data_docstrings)
self.assertEqual(result, expected_html)
@unittest.skipIf(sys.flags.optimize >= 2,
"Docstrings are omitted with -O2 and above")
@unittest.skipIf(hasattr(sys, 'gettrace') and sys.gettrace(),
'trace function introduces __locals__ unexpectedly')
@requires_docstrings
def test_text_doc(self):
result, doc_loc = get_pydoc_text(pydoc_mod)
expected_text = expected_text_pattern % (
(doc_loc,) +
expected_text_data_docstrings +
(inspect.getabsfile(pydoc_mod),))
self.assertEqual(expected_text, result)
def test_text_enum_member_with_value_zero(self):
# Test issue #20654 to ensure enum member with value 0 can be
# displayed. It used to throw KeyError: 'zero'.
import enum
class BinaryInteger(enum.IntEnum):
zero = 0
one = 1
doc = pydoc.render_doc(BinaryInteger)
self.assertIn('BinaryInteger.zero', doc)
def test_mixed_case_module_names_are_lower_cased(self):
# issue16484
doc_link = get_pydoc_link(xml.etree.ElementTree)
self.assertIn('xml.etree.elementtree', doc_link)
def test_issue8225(self):
# Test issue8225 to ensure no doc link appears for xml.etree
result, doc_loc = get_pydoc_text(xml.etree)
self.assertEqual(doc_loc, "", "MODULE DOCS incorrectly includes a link")
def test_getpager_with_stdin_none(self):
previous_stdin = sys.stdin
try:
sys.stdin = None
pydoc.getpager() # Shouldn't fail.
finally:
sys.stdin = previous_stdin
def test_non_str_name(self):
# issue14638
# Treat illegal (non-str) name like no name
class A:
__name__ = 42
class B:
pass
adoc = pydoc.render_doc(A())
bdoc = pydoc.render_doc(B())
self.assertEqual(adoc.replace("A", "B"), bdoc)
def test_not_here(self):
missing_module = "test.i_am_not_here"
result = str(run_pydoc(missing_module), 'ascii')
expected = missing_pattern % missing_module
self.assertEqual(expected, result,
"documentation for missing module found")
@unittest.skipIf(sys.flags.optimize >= 2,
'Docstrings are omitted with -OO and above')
def test_not_ascii(self):
result = run_pydoc('test.test_pydoc.nonascii', PYTHONIOENCODING='ascii')
encoded = nonascii.__doc__.encode('ascii', 'backslashreplace')
self.assertIn(encoded, result)
def test_input_strip(self):
missing_module = " test.i_am_not_here "
result = str(run_pydoc(missing_module), 'ascii')
expected = missing_pattern % missing_module.strip()
self.assertEqual(expected, result)
def test_stripid(self):
# test with strings, other implementations might have different repr()
stripid = pydoc.stripid
# strip the id
self.assertEqual(stripid('<function stripid at 0x88dcee4>'),
'<function stripid>')
self.assertEqual(stripid('<function stripid at 0x01F65390>'),
'<function stripid>')
# nothing to strip, return the same text
self.assertEqual(stripid('42'), '42')
self.assertEqual(stripid("<type 'exceptions.Exception'>"),
"<type 'exceptions.Exception'>")
def test_builtin_with_more_than_four_children(self):
"""Tests help on builtin object which have more than four child classes.
When running help() on a builtin class which has child classes, it
should contain a "Built-in subclasses" section and only 4 classes
should be displayed with a hint on how many more subclasses are present.
For example:
>>> help(object)
Help on class object in module builtins:
class object
| The most base type
|
| Built-in subclasses:
| async_generator
| BaseException
| builtin_function_or_method
| bytearray
| ... and 82 other subclasses
"""
doc = pydoc.TextDoc()
text = doc.docclass(object)
snip = (" | Built-in subclasses:\n"
" | async_generator\n"
" | BaseException\n"
" | builtin_function_or_method\n"
" | bytearray\n"
" | ... and \\d+ other subclasses")
self.assertRegex(text, snip)
def test_builtin_with_child(self):
"""Tests help on builtin object which have only child classes.
When running help() on a builtin class which has child classes, it
should contain a "Built-in subclasses" section. For example:
>>> help(ArithmeticError)
Help on class ArithmeticError in module builtins:
class ArithmeticError(Exception)
| Base class for arithmetic errors.
|
...
|
| Built-in subclasses:
| FloatingPointError
| OverflowError
| ZeroDivisionError
"""
doc = pydoc.TextDoc()
text = doc.docclass(ArithmeticError)
snip = (" | Built-in subclasses:\n"
" | FloatingPointError\n"
" | OverflowError\n"
" | ZeroDivisionError")
self.assertIn(snip, text)
def test_builtin_with_grandchild(self):
"""Tests help on builtin classes which have grandchild classes.
When running help() on a builtin class which has child classes, it
should contain a "Built-in subclasses" section. However, if it also has
grandchildren, these should not show up on the subclasses section.
For example:
>>> help(Exception)
Help on class Exception in module builtins:
class Exception(BaseException)
| Common base class for all non-exit exceptions.
|
...
|
| Built-in subclasses:
| ArithmeticError
| AssertionError
| AttributeError
...
"""
doc = pydoc.TextDoc()
text = doc.docclass(Exception)
snip = (" | Built-in subclasses:\n"
" | ArithmeticError\n"
" | AssertionError\n"
" | AttributeError")
self.assertIn(snip, text)
# Testing that the grandchild ZeroDivisionError does not show up
self.assertNotIn('ZeroDivisionError', text)
def test_builtin_no_child(self):
"""Tests help on builtin object which have no child classes.
When running help() on a builtin class which has no child classes, it
should not contain any "Built-in subclasses" section. For example:
>>> help(ZeroDivisionError)
Help on class ZeroDivisionError in module builtins:
class ZeroDivisionError(ArithmeticError)
| Second argument to a division or modulo operation was zero.
|
| Method resolution order:
| ZeroDivisionError
| ArithmeticError
| Exception
| BaseException
| object
|
| Methods defined here:
...
"""
doc = pydoc.TextDoc()
text = doc.docclass(ZeroDivisionError)
# Testing that the subclasses section does not appear
self.assertNotIn('Built-in subclasses', text)
def test_builtin_on_metaclasses(self):
"""Tests help on metaclasses.
When running help() on a metaclasses such as type, it
should not contain any "Built-in subclasses" section.
"""
doc = pydoc.TextDoc()
text = doc.docclass(type)
# Testing that the subclasses section does not appear
self.assertNotIn('Built-in subclasses', text)
@unittest.skipIf(sys.flags.optimize >= 2,
'Docstrings are omitted with -O2 and above')
@unittest.skipIf(hasattr(sys, 'gettrace') and sys.gettrace(),
'trace function introduces __locals__ unexpectedly')
@requires_docstrings
def test_help_output_redirect(self):
# issue 940286, if output is set in Helper, then all output from
# Helper.help should be redirected
old_pattern = expected_text_pattern
getpager_old = pydoc.getpager
getpager_new = lambda: (lambda x: x)
self.maxDiff = None
buf = StringIO()
helper = pydoc.Helper(output=buf)
unused, doc_loc = get_pydoc_text(pydoc_mod)
module = "test.pydoc_mod"
help_header = """
Help on module test.pydoc_mod in test:
""".lstrip()
help_header = textwrap.dedent(help_header)
expected_help_pattern = help_header + expected_text_pattern
pydoc.getpager = getpager_new
try:
with captured_output('stdout') as output, \
captured_output('stderr') as err:
helper.help(module)
result = buf.getvalue().strip()
expected_text = expected_help_pattern % (
(doc_loc,) +
expected_text_data_docstrings +
(inspect.getabsfile(pydoc_mod),))
self.assertEqual('', output.getvalue())
self.assertEqual('', err.getvalue())
self.assertEqual(expected_text, result)
finally:
pydoc.getpager = getpager_old
def test_namedtuple_fields(self):
Person = namedtuple('Person', ['nickname', 'firstname'])
with captured_stdout() as help_io:
pydoc.help(Person)
helptext = help_io.getvalue()
self.assertIn("nickname", helptext)
self.assertIn("firstname", helptext)
self.assertIn("Alias for field number 0", helptext)
self.assertIn("Alias for field number 1", helptext)
def test_namedtuple_public_underscore(self):
NT = namedtuple('NT', ['abc', 'def'], rename=True)
with captured_stdout() as help_io:
pydoc.help(NT)
helptext = help_io.getvalue()
self.assertIn('_1', helptext)
self.assertIn('_replace', helptext)
self.assertIn('_asdict', helptext)
def test_synopsis(self):
self.addCleanup(unlink, TESTFN)
for encoding in ('ISO-8859-1', 'UTF-8'):
with open(TESTFN, 'w', encoding=encoding) as script:
if encoding != 'UTF-8':
print('#coding: {}'.format(encoding), file=script)
print('"""line 1: h\xe9', file=script)
print('line 2: hi"""', file=script)
synopsis = pydoc.synopsis(TESTFN, {})
self.assertEqual(synopsis, 'line 1: h\xe9')
@unittest.skipIf(sys.flags.optimize >= 2,
'Docstrings are omitted with -OO and above')
def test_synopsis_sourceless(self):
expected = os.__doc__.splitlines()[0]
filename = os.__cached__
synopsis = pydoc.synopsis(filename)
self.assertEqual(synopsis, expected)
def test_synopsis_sourceless_empty_doc(self):
with os_helper.temp_cwd() as test_dir:
init_path = os.path.join(test_dir, 'foomod42.py')
cached_path = importlib.util.cache_from_source(init_path)
with open(init_path, 'w') as fobj:
fobj.write("foo = 1")
py_compile.compile(init_path)
synopsis = pydoc.synopsis(init_path, {})
self.assertIsNone(synopsis)
synopsis_cached = pydoc.synopsis(cached_path, {})
self.assertIsNone(synopsis_cached)
def test_splitdoc_with_description(self):
example_string = "I Am A Doc\n\n\nHere is my description"
self.assertEqual(pydoc.splitdoc(example_string),
('I Am A Doc', '\nHere is my description'))
def test_is_package_when_not_package(self):
with os_helper.temp_cwd() as test_dir:
self.assertFalse(pydoc.ispackage(test_dir))
def test_is_package_when_is_package(self):
with os_helper.temp_cwd() as test_dir:
init_path = os.path.join(test_dir, '__init__.py')
open(init_path, 'w').close()
self.assertTrue(pydoc.ispackage(test_dir))
os.remove(init_path)
def test_allmethods(self):
# issue 17476: allmethods was no longer returning unbound methods.
# This test is a bit fragile in the face of changes to object and type,
# but I can't think of a better way to do it without duplicating the
# logic of the function under test.
class TestClass(object):
def method_returning_true(self):
return True
# What we expect to get back: everything on object...
expected = dict(vars(object))
# ...plus our unbound method...
expected['method_returning_true'] = TestClass.method_returning_true
# ...but not the non-methods on object.
del expected['__doc__']
del expected['__class__']
# inspect resolves descriptors on type into methods, but vars doesn't,
# so we need to update __subclasshook__ and __init_subclass__.
expected['__subclasshook__'] = TestClass.__subclasshook__
expected['__init_subclass__'] = TestClass.__init_subclass__
methods = pydoc.allmethods(TestClass)
self.assertDictEqual(methods, expected)
def test_method_aliases(self):
class A:
def tkraise(self, aboveThis=None):
"""Raise this widget in the stacking order."""
lift = tkraise
def a_size(self):
"""Return size"""
class B(A):
def itemconfigure(self, tagOrId, cnf=None, **kw):
"""Configure resources of an item TAGORID."""
itemconfig = itemconfigure
b_size = A.a_size
doc = pydoc.render_doc(B)
# clean up the extra text formatting that pydoc performs
doc = re.sub('\b.', '', doc)
self.assertEqual(doc, '''\
Python Library Documentation: class B in module %s
class B(A)
| Method resolution order:
| B
| A
| builtins.object
|\x20\x20
| Methods defined here:
|\x20\x20
| b_size = a_size(self)
|\x20\x20
| itemconfig = itemconfigure(self, tagOrId, cnf=None, **kw)
|\x20\x20
| itemconfigure(self, tagOrId, cnf=None, **kw)
| Configure resources of an item TAGORID.
|\x20\x20
| ----------------------------------------------------------------------
| Methods inherited from A:
|\x20\x20
| a_size(self)
| Return size
|\x20\x20
| lift = tkraise(self, aboveThis=None)
|\x20\x20
| tkraise(self, aboveThis=None)
| Raise this widget in the stacking order.
|\x20\x20
| ----------------------------------------------------------------------
| Data descriptors inherited from A:
|\x20\x20
| __dict__
| dictionary for instance variables (if defined)
|\x20\x20
| __weakref__
| list of weak references to the object (if defined)
''' % __name__)
doc = pydoc.render_doc(B, renderer=pydoc.HTMLDoc())
self.assertEqual(doc, '''\
Python Library Documentation: class B in module %s
<p>
<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="B">class <strong>B</strong></a>(A)</font></td></tr>
\x20\x20\x20\x20
<tr><td bgcolor="#ffc8d8"><tt> </tt></td><td> </td>
<td width="100%%"><dl><dt>Method resolution order:</dt>
<dd>B</dd>
<dd>A</dd>
<dd><a href="builtins.html#object">builtins.object</a></dd>
</dl>
<hr>
Methods defined here:<br>
<dl><dt><a name="B-b_size"><strong>b_size</strong></a> = <a href="#B-a_size">a_size</a>(self)</dt></dl>
<dl><dt><a name="B-itemconfig"><strong>itemconfig</strong></a> = <a href="#B-itemconfigure">itemconfigure</a>(self, tagOrId, cnf=None, **kw)</dt></dl>
<dl><dt><a name="B-itemconfigure"><strong>itemconfigure</strong></a>(self, tagOrId, cnf=None, **kw)</dt><dd><tt>Configure resources of an item TAGORID.</tt></dd></dl>
<hr>
Methods inherited from A:<br>
<dl><dt><a name="B-a_size"><strong>a_size</strong></a>(self)</dt><dd><tt>Return size</tt></dd></dl>
<dl><dt><a name="B-lift"><strong>lift</strong></a> = <a href="#B-tkraise">tkraise</a>(self, aboveThis=None)</dt></dl>
<dl><dt><a name="B-tkraise"><strong>tkraise</strong></a>(self, aboveThis=None)</dt><dd><tt>Raise this widget in the stacking order.</tt></dd></dl>
<hr>
Data descriptors inherited from A:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>dictionary for instance variables (if defined)</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>list of weak references to the object (if defined)</tt></dd>
</dl>
</td></tr></table>\
''' % __name__)
class PydocImportTest(PydocBaseTest):
def setUp(self):
self.test_dir = os.mkdir(TESTFN)
self.addCleanup(rmtree, TESTFN)
importlib.invalidate_caches()
def test_badimport(self):
# This tests the fix for issue 5230, where if pydoc found the module
# but the module had an internal import error pydoc would report no doc
# found.
modname = 'testmod_xyzzy'
testpairs = (
('i_am_not_here', 'i_am_not_here'),
('test.i_am_not_here_either', 'test.i_am_not_here_either'),
('test.i_am_not_here.neither_am_i', 'test.i_am_not_here'),
('i_am_not_here.{}'.format(modname), 'i_am_not_here'),
('test.{}'.format(modname), 'test.{}'.format(modname)),
)
sourcefn = os.path.join(TESTFN, modname) + os.extsep + "py"
for importstring, expectedinmsg in testpairs:
with open(sourcefn, 'w') as f:
f.write("import {}\n".format(importstring))
result = run_pydoc(modname, PYTHONPATH=TESTFN).decode("ascii")
expected = badimport_pattern % (modname, expectedinmsg)
self.assertEqual(expected, result)
def test_apropos_with_bad_package(self):
# Issue 7425 - pydoc -k failed when bad package on path
pkgdir = os.path.join(TESTFN, "syntaxerr")
os.mkdir(pkgdir)
badsyntax = os.path.join(pkgdir, "__init__") + os.extsep + "py"
with open(badsyntax, 'w') as f:
f.write("invalid python syntax = $1\n")
with self.restrict_walk_packages(path=[TESTFN]):
with captured_stdout() as out:
with captured_stderr() as err:
pydoc.apropos('xyzzy')
# No result, no error
self.assertEqual(out.getvalue(), '')
self.assertEqual(err.getvalue(), '')
# The package name is still matched
with captured_stdout() as out:
with captured_stderr() as err:
pydoc.apropos('syntaxerr')
self.assertEqual(out.getvalue().strip(), 'syntaxerr')
self.assertEqual(err.getvalue(), '')
def test_apropos_with_unreadable_dir(self):
# Issue 7367 - pydoc -k failed when unreadable dir on path
self.unreadable_dir = os.path.join(TESTFN, "unreadable")
os.mkdir(self.unreadable_dir, 0)
self.addCleanup(os.rmdir, self.unreadable_dir)
# Note, on Windows the directory appears to be still
# readable so this is not really testing the issue there
with self.restrict_walk_packages(path=[TESTFN]):
with captured_stdout() as out:
with captured_stderr() as err:
pydoc.apropos('SOMEKEY')
# No result, no error
self.assertEqual(out.getvalue(), '')
self.assertEqual(err.getvalue(), '')
def test_apropos_empty_doc(self):
pkgdir = os.path.join(TESTFN, 'walkpkg')
os.mkdir(pkgdir)
self.addCleanup(rmtree, pkgdir)
init_path = os.path.join(pkgdir, '__init__.py')
with open(init_path, 'w') as fobj:
fobj.write("foo = 1")
current_mode = stat.S_IMODE(os.stat(pkgdir).st_mode)
try:
os.chmod(pkgdir, current_mode & ~stat.S_IEXEC)
with self.restrict_walk_packages(path=[TESTFN]), captured_stdout() as stdout:
pydoc.apropos('')
self.assertIn('walkpkg', stdout.getvalue())
finally:
os.chmod(pkgdir, current_mode)
def test_url_search_package_error(self):
# URL handler search should cope with packages that raise exceptions
pkgdir = os.path.join(TESTFN, "test_error_package")
os.mkdir(pkgdir)
init = os.path.join(pkgdir, "__init__.py")
with open(init, "wt", encoding="ascii") as f:
f.write("""raise ValueError("ouch")\n""")
with self.restrict_walk_packages(path=[TESTFN]):
# Package has to be importable for the error to have any effect
saved_paths = tuple(sys.path)
sys.path.insert(0, TESTFN)
try:
with self.assertRaisesRegex(ValueError, "ouch"):
import test_error_package # Sanity check
text = self.call_url_handler("search?key=test_error_package",
"Pydoc: Search Results")
found = ('<a href="test_error_package.html">'
'test_error_package</a>')
self.assertIn(found, text)
finally:
sys.path[:] = saved_paths
@unittest.skip('causes undesirable side-effects (#20128)')
def test_modules(self):
# See Helper.listmodules().
num_header_lines = 2
num_module_lines_min = 5 # Playing it safe.
num_footer_lines = 3
expected = num_header_lines + num_module_lines_min + num_footer_lines
output = StringIO()
helper = pydoc.Helper(output=output)
helper('modules')
result = output.getvalue().strip()
num_lines = len(result.splitlines())
self.assertGreaterEqual(num_lines, expected)
@unittest.skip('causes undesirable side-effects (#20128)')