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[clang/clang-tools-extra] Fix BZ44437 - add_new_check.py does not wor…
…k with Python 3 Summary: This fixes https://bugs.llvm.org/show_bug.cgi?id=44437. Thanks to Arnaud Desitter for providing the patch in the bug report! A simple example program to reproduce this error is this: ```lang=python import sys with open(sys.argv[0], 'r') as f: lines = f.readlines() lines = iter(lines) line = lines.next() print(line) ``` which will error with this in python python 3: ``` Traceback (most recent call last): File "./mytest.py", line 8, in <module> line = lines.next() AttributeError: 'list_iterator' object has no attribute 'next' ``` Here's the same strategy applied to my test program as applied to the `add_new_check.py` file: ```lang=python import sys with open(sys.argv[0], 'r') as f: lines = f.readlines() lines = iter(lines) line = next(lines) print(line) ``` The built-in function `next()` is new since Python 2.6: https://docs.python.org/2/library/functions.html#next Subscribers: cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D79419
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