Fix issue 5230 by having pydoc's safeimport check to see if the import
error was thrown from itself in order to decide if the module can't be
found. Thanks to Lucas Prado Melo for collaborating on the fix and tests.
diff --git a/Lib/test/test_pydoc.py b/Lib/test/test_pydoc.py
index 7990d3a..c1c19f6 100644
--- a/Lib/test/test_pydoc.py
+++ b/Lib/test/test_pydoc.py
@@ -1,5 +1,6 @@
import sys
import os
+import os.path
import difflib
import subprocess
import re
@@ -7,6 +8,8 @@
import inspect
import unittest
import test.test_support
+from contextlib import contextmanager
+from test.test_support import TESTFN, forget, rmtree, EnvironmentVarGuard
from test import pydoc_mod
@@ -166,6 +169,9 @@
# output pattern for missing module
missing_pattern = "no Python documentation found for '%s'"
+# output pattern for module with bad imports
+badimport_pattern = "problem in %s - <type 'exceptions.ImportError'>: No module named %s"
+
def run_pydoc(module_name, *args):
"""
Runs pydoc on the specified module. Returns the stripped
@@ -237,6 +243,42 @@
self.assertEqual(expected, result,
"documentation for missing module found")
+ 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', 'i_am_not_here_either'),
+ ('test.i_am_not_here.neither_am_i', 'i_am_not_here.neither_am_i'),
+ ('i_am_not_here.{}'.format(modname), 'i_am_not_here.{}'.format(modname)),
+ ('test.{}'.format(modname), modname),
+ )
+
+ @contextmanager
+ def newdirinpath(dir):
+ os.mkdir(dir)
+ sys.path.insert(0, dir)
+ yield
+ sys.path.pop(0)
+ rmtree(dir)
+
+ with newdirinpath(TESTFN), EnvironmentVarGuard() as env:
+ env['PYTHONPATH'] = TESTFN
+ fullmodname = os.path.join(TESTFN, modname)
+ sourcefn = fullmodname + os.extsep + "py"
+ for importstring, expectedinmsg in testpairs:
+ f = open(sourcefn, 'w')
+ f.write("import {}\n".format(importstring))
+ f.close()
+ try:
+ result = run_pydoc(modname)
+ finally:
+ forget(modname)
+ expected = badimport_pattern % (modname, expectedinmsg)
+ self.assertEqual(expected, result)
+
def test_input_strip(self):
missing_module = " test.i_am_not_here "
result = run_pydoc(missing_module)