gh-63301: Set exit code when tabnanny CLI exits on error

[ultimatecoder]

Setting appropriate exit code when tabnanny is exiting with errors. Occurrences of errprint under chec() are escaped with a reason to continue traversing files under a directory.

• Issue: Add tests for CLI of the tabnanny module #63301

[vstinner]

You didn't patch all calls to errprint(). Well, another approach is to put the exit() in errprint() directly.

Moreover, test_tabnanny fails.

[hauntsaninja]

Thank you, this looks straightforward enough

[arhadthedev]

Can the whole errprint() be replaced with this:

def errprint(*args):
    sys.exit(' '.join(str(arg) for arg in args))

?

[hauntsaninja]

Thank you Jaysinh and Erlend!

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Windows10 3.x has failed when building commit 8176334.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/146/builds/4607) and take a look at the build logs.
4. Check if the failure is related to this commit (8176334) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/146/builds/4607

Failed tests:

• test_subprocess

Summary of the results of the build (if available):

== Tests result: FAILURE then SUCCESS ==

399 tests OK.

10 slowest tests:

• test_math: 5 min 39 sec
• test_multiprocessing_spawn: 4 min 31 sec
• test_wmi: 3 min 46 sec
• test_tokenize: 3 min 12 sec
• test_asyncio: 2 min 26 sec
• test_capi: 2 min 12 sec
• test_lib2to3: 1 min 51 sec
• test_concurrent_futures: 1 min 48 sec
• test_unparse: 1 min 43 sec
• test_mmap: 1 min 28 sec

35 tests skipped:
test_check_c_globals test_clinic test_curses test_dbm_gnu
test_dbm_ndbm test_devpoll test_epoll test_fcntl test_fork1
test_gdb test_grp test_ioctl test_kqueue test_multiprocessing_fork
test_multiprocessing_forkserver test_nis test_openpty
test_ossaudiodev test_peg_generator test_perf_profiler test_pipes
test_poll test_posix test_pty test_pwd test_readline test_resource
test_spwd test_syslog test_threadsignals test_wait3 test_wait4
test_xxlimited test_xxtestfuzz test_zipfile64

1 re-run test:
test_subprocess

Total duration: 25 min 14 sec

Click to see traceback logs

remote: Enumerating objects: 11, done.        
remote: Counting objects:  10% (1/10)        
remote: Counting objects:  20% (2/10)        
remote: Counting objects:  30% (3/10)        
remote: Counting objects:  40% (4/10)        
remote: Counting objects:  50% (5/10)        
remote: Counting objects:  60% (6/10)        
remote: Counting objects:  70% (7/10)        
remote: Counting objects:  80% (8/10)        
remote: Counting objects:  90% (9/10)        
remote: Counting objects: 100% (10/10)        
remote: Counting objects: 100% (10/10), done.        
remote: Compressing objects:  12% (1/8)        
remote: Compressing objects:  25% (2/8)        
remote: Compressing objects:  37% (3/8)        
remote: Compressing objects:  50% (4/8)        
remote: Compressing objects:  62% (5/8)        
remote: Compressing objects:  75% (6/8)        
remote: Compressing objects:  87% (7/8)        
remote: Compressing objects: 100% (8/8)        
remote: Compressing objects: 100% (8/8), done.        
remote: Total 11 (delta 2), reused 2 (delta 2), pack-reused 1        
From https://github.com/python/cpython
 * branch            main       -> FETCH_HEAD
Note: checking out '81763341ede99ea5ae8993a57b8e3b71b46b2d72'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 8176334... gh-63301: Set exit code when tabnanny CLI exits on error (#7699)
Switched to and reset branch 'main'

Could Not Find D:\buildarea\3.x.bolen-windows10\build\Lib\*.pyc
The system cannot find the file specified.
Could Not Find D:\buildarea\3.x.bolen-windows10\build\PCbuild\python*.zip

minkernel\crts\ucrt\src\appcrt\lowio\write.cpp(50) : Assertion failed: (_osfile(fh) & FOPEN)
minkernel\crts\ucrt\src\appcrt\lowio\close.cpp(49) : Assertion failed: (_osfile(fh) & FOPEN)
minkernel\crts\ucrt\src\appcrt\lowio\close.cpp(49) : Assertion failed: (_osfile(fh) & FOPEN)

Could Not Find D:\buildarea\3.x.bolen-windows10\build\PCbuild\python*.zip