FileNotFoundError: [Errno 2] No such file or directory:

[Tester]

BPO	35085
Nosy	@stevendaprano, @tirkarthi

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2018-10-28.22:21:09.675>
created_at = <Date 2018-10-28.00:06:56.205>
labels = ['invalid', 'library']
title = 'FileNotFoundError: [Errno 2] No such file or directory:'
updated_at = <Date 2018-10-28.22:21:09.674>
user = 'https://bugs.python.org/Tester'

bugs.python.org fields:

activity = <Date 2018-10-28.22:21:09.674>
actor = 'steven.daprano'
assignee = 'none'
closed = True
closed_date = <Date 2018-10-28.22:21:09.675>
closer = 'steven.daprano'
components = ['Library (Lib)']
creation = <Date 2018-10-28.00:06:56.205>
creator = 'Tester'
dependencies = []
files = []
hgrepos = []
issue_num = 35085
keywords = []
message_count = 4.0
messages = ['328666', '328668', '328677', '328734']
nosy_count = 3.0
nosy_names = ['steven.daprano', 'xtreak', 'Tester']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue35085'
versions = ['Python 3.6']

[Tester]

Seems the base64 module has issues with bad file(s). This does not seems to generate a Crash Report.

t:~$ python3 -m base64 -d "12s345a2"
Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/lib/python3.6/base64.py", line 602, in <module>
    main()
  File "/usr/lib/python3.6/base64.py", line 585, in main
    with open(args[0], 'rb') as f:
FileNotFoundError: [Errno 2] No such file or directory: '12s345a2'

test@TestNut:~$ python3 -m base64 -d /test.txt
Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/lib/python3.6/base64.py", line 602, in <module>
    main()
  File "/usr/lib/python3.6/base64.py", line 585, in main
    with open(args[0], 'rb') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/test.txt'

[stevendaprano]

What do you mean, a crash report?

You get a traceback telling you the problem: the file is missing. What behaviour did you expect if you try to decode a non-existent file?

Perhaps you meant to write:

python3 -m base64 -t "12s345a2"

I don't think this is a bug, I think it is working correctly. If you cannot explain why it is a bug, we'll close this bug report.

[tirkarthi]

I can see one another related report bpo-35084. As @steven.daprano said this is an expected traceback and it's working correctly. -d expects a valid base64 encoded file and supplying a non-existent file or file with invalid encoding is supposed to throw a traceback.

[Tester]

How can that be CLI useful. Lucky I guess as this does not generate a Crash
Report. OK.

Bad/Missing File would have been my preferred. Then again?

Thanks

On Sun, Oct 28, 2018 at 1:48 AM Karthikeyan Singaravelan <
report@bugs.python.org> wrote:

Karthikeyan Singaravelan <tir.karthi@gmail.com> added the comment:

I can see one another related report bpo-35084. As @steven.daprano said
this is an expected traceback and it's working correctly. -d expects a
valid base64 encoded file and supplying a non-existent file or file with
invalid encoding is supposed to throw a traceback.

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nosy: +xtreak

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Python tracker <report@bugs.python.org>
<https://bugs.python.org/issue35085\>

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