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Bug 672440

Summary: sys-apps/portage: portage.process.spawn env={} default is insane
Product: Portage Development Reporter: Zac Medico <zmedico>
Component: CoreAssignee: Portage team <dev-portage>
Severity: normal CC: matoro_bugzilla_gentoo
Priority: Normal Keywords: InVCS
Version: unspecified   
Hardware: All   
OS: All   
Package list:
Runtime testing required: ---
Bug Depends on:    
Bug Blocks: 671498    

Description Zac Medico gentoo-dev 2018-12-03 06:45:26 UTC
Spawning programs with an empty environment is not a sane default. It would be more useful to behave like the standard library's subprocess module, where the default env=None is equivalent to env=os.environ.
Comment 2 Larry the Git Cow gentoo-dev 2018-12-04 01:35:30 UTC
The bug has been referenced in the following commit(s):

commit e9810a30bf044d93c0348d46225ad6b2ae1a45df
Author:     Zac Medico <>
AuthorDate: 2018-12-03 07:47:32 +0000
Commit:     Zac Medico <>
CommitDate: 2018-12-04 01:15:03 +0000

    portage.process.spawn: inherit env by default (bug 672440)
    Make child processes inherit the current process's environment by
    default, so that behavior is equivalent to the standard library's
    subprocess module.
    Reviewed-by: Brian Dolbec <>
    Signed-off-by: Zac Medico <>

 lib/portage/ | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)
Comment 3 Zac Medico gentoo-dev 2019-04-10 04:32:06 UTC
Fixed in portage-2.3.62.