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-rw-r--r--Lib/inspect.py2
-rw-r--r--Lib/test/test_inspect.py6
-rw-r--r--Misc/NEWS3
3 files changed, 10 insertions, 1 deletions
diff --git a/Lib/inspect.py b/Lib/inspect.py
index 66d5186573..9e928b294f 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -525,7 +525,7 @@ def findsource(object):
file = getfile(object)
sourcefile = getsourcefile(object)
- if not sourcefile and file[0] + file[-1] != '<>':
+ if not sourcefile and file[:1] + file[-1:] != '<>':
raise IOError('source code not available')
file = sourcefile if sourcefile else file
diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
index 30b1556cbf..04dcfe992a 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -404,6 +404,12 @@ class TestBuggyCases(GetSourceBase):
self.assertEqual(inspect.findsource(co), (lines,0))
self.assertEqual(inspect.getsource(co), lines[0])
+ def test_findsource_without_filename(self):
+ for fname in ['', '<string>']:
+ co = compile('x=1', fname, "exec")
+ self.assertRaises(IOError, inspect.findsource, co)
+ self.assertRaises(IOError, inspect.getsource, co)
+
class _BrokenDataDescriptor(object):
"""
diff --git a/Misc/NEWS b/Misc/NEWS
index 37802d8750..ecdf606f7b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@ Core and Builtins
Library
-------
+- Issue #17526: fix an IndexError raised while passing code without filename to
+ inspect.findsource(). Initial patch by Tyler Doyle.
+
What's New in Python 2.7.4?
===========================