#17526: fix an IndexError raised while passing code without filename to inspect.findsource(). Initial patch by Tyler Doyle.
diff --git a/Lib/inspect.py b/Lib/inspect.py
index 66d5186..9e928b2 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -525,7 +525,7 @@
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 30b1556..04dcfe9 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -404,6 +404,12 @@
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 37802d8..ecdf606 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
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?
===========================