trace fails when test imported a temporary file

[brettcannon]

BPO	10991
Nosy	@brettcannon

^{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 2019-05-14.04:15:47.691>
created_at = <Date 2011-01-23.23:31:12.014>
labels = ['type-bug', 'library']
title = 'trace fails when test imported a temporary file'
updated_at = <Date 2019-05-14.04:15:47.690>
user = 'https://github.com/brettcannon'

bugs.python.org fields:

activity = <Date 2019-05-14.04:15:47.690>
actor = 'brett.cannon'
assignee = 'none'
closed = True
closed_date = <Date 2019-05-14.04:15:47.691>
closer = 'brett.cannon'
components = ['Library (Lib)']
creation = <Date 2011-01-23.23:31:12.014>
creator = 'brett.cannon'
dependencies = []
files = []
hgrepos = []
issue_num = 10991
keywords = []
message_count = 4.0
messages = ['126909', '223220', '342316', '342427']
nosy_count = 2.0
nosy_names = ['brett.cannon', 'SilentGhost']
pr_nums = []
priority = 'normal'
resolution = 'out of date'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue10991'
versions = ['Python 3.4', 'Python 3.5']

[brettcannon]

If you run test.regrtest -T you will discover that (at least) test_importlib and test_runpy prevent coverage data from being written out as 'trace' will try to find files which no longer exist. Both test suites create temp files, import them, and then delete them. Unfortunately 'trace' doesn't ignore that fact and throws an exception that the temporary files are gone.

Since the file is simply gone it probably makes sense to have 'trace' just print out a warning that the file could not be found and move on.

[BreamoreBoy]

Knowing the platform this occurred on would be useful, but given the age do we care?

[SilentGhost]

Brett, is this something that is still relevant for the supported versions or are you OK with closing this issue as out of date or wont fix?

[brettcannon]

Since I'm not bothered enough to check if this is still an issue I'm fine with closing this.