[New-bugs-announce] [issue35674] Expose os.posix_spawnp()

[STINNER Victor]

New submission from STINNER Victor <vstinner at redhat.com>:

bpo-20104 exposed os.posix_spawn(), but not os.posix_spawnp().

os.posix_spawnp() would be useful to support executable with no directory. See bpo-35537 "use os.posix_spawn in subprocess".

I'm not sure what is the best API:

* Add os.posix_spawnp()? duplicate the documentation and some parts of the C code (but share most of the C code)
* Add a new optional parameter to os.posix_spawn()? Ideas of names: 'use_path' or 'search_executable'. Internally, the glibc uses SPAWN_XFLAGS_USE_PATH flag to distinguish posix_spawn() and posix_spawnp().

execvp() uses the PATH environment variable, or use confstr(_CS_PATH) if PATH is not set. I guess that posix_spawnp() also uses confstr(_CS_PATH) if PATH is not set.

Currently, my favorite option is to add a new optional 'use_path' parameter to the existing os.posix_spawn() function.

----------
components: Interpreter Core
messages: 333128
nosy: pablogsal, serhiy.storchaka, vstinner
priority: normal
severity: normal
status: open
title: Expose os.posix_spawnp()
versions: Python 3.8

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<https://bugs.python.org/issue35674>
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