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Add a "target" parameter to runpy.run_path and runpy.run_module #64181

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ncoghlan opened this issue Dec 14, 2013 · 5 comments
Open

Add a "target" parameter to runpy.run_path and runpy.run_module #64181

ncoghlan opened this issue Dec 14, 2013 · 5 comments
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3.8 only security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) type-feature A feature request or enhancement

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@ncoghlan
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BPO 19982
Nosy @brettcannon, @ncoghlan, @ericsnowcurrently, @CuriousLearner, @nanjekyejoannah
Dependencies
  • bpo-19700: Update runpy for PEP 451
    		•

    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 = None
created_at = <Date 2013-12-14.13:22:03.091>
labels = ['type-feature', '3.8']
title = 'Add a "target" parameter to runpy.run_path and runpy.run_module'
updated_at = <Date 2019-08-06.17:38:32.963>
user = 'https://github.com/ncoghlan'

    bugs.python.org fields:

    activity = <Date 2019-08-06.17:38:32.963>
actor = 'nanjekyejoannah'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2013-12-14.13:22:03.091>
creator = 'ncoghlan'
dependencies = ['19700']
files = []
hgrepos = []
issue_num = 19982
keywords = []
message_count = 5.0
messages = ['206181', '206430', '305671', '305719', '349121']
nosy_count = 6.0
nosy_names = ['brett.cannon', 'ncoghlan', 'eric.snow', 'piotr.dobrogost', 'CuriousLearner', 'nanjekyejoannah']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue19982'
versions = ['Python 3.8']
    @ncoghlan
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    One idea from PEP-451 was to add a "target" parameter to runpy.run_path and runpy.run_module to allow them to support execution in an existing module namespace (like __main__).

    This missed the feature freeze deadline for 3.4, but can be added in 3.5.

    @ncoghlan ncoghlan added the type-feature A feature request or enhancement label Dec 14, 2013
    @ncoghlan
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    Implementing this is actually likely to require non-trivial restructuring of the runpy internals. contextlib.ExitStack may prove useful in making it easier to programmatically select amongst different context managers.

    The __mp_main__ helpers in multiprocessing should also be able to take advantage of this once it is available, and it may prove useful in finally providing -m analogues for pdb etc that play nice when an exception occurs (see bpo-9325).

    @CuriousLearner
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    Hey ncoghlan,

    Does this issue makes sense to be worked on for Python 3.7?

    @ncoghlan
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    ncoghlan commented Nov 7, 2017

    See bpo-21862 and bpo-9325 as potential use cases for this feature.

    While it looks like bpo-21862 (-m switch support in cProfile) can be implemented just fine without it, this feature will be needed for the modules that execute the given scripts directly in __main__.__dict__ (e.g. pdb).

    @ncoghlan ncoghlan added the 3.7 (EOL) end of life label Nov 7, 2017
    @ncoghlan ncoghlan added 3.8 only security fixes and removed 3.7 (EOL) end of life labels Jun 4, 2018
    @nanjekyejoannah
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    bpo-19978 also needs this.

    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
    @iritkatriel iritkatriel added the interpreter-core (Objects, Python, Grammar, and Parser dirs) label Nov 27, 2023
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    @ncoghlan @iritkatriel @CuriousLearner @nanjekyejoannah