parent: handle masters with blank sys.executable; closes #356.

issue72
David Wilson 6 years ago
parent 9d070541d9
commit 0fa5fe5559

@ -174,6 +174,11 @@ Core Library
* `#345 <https://github.com/dw/mitogen/issues/345>`_: the SSH connection method
allows optionally disabling ``IdentitiesOnly yes``.
* `#356 <https://github.com/dw/mitogen/issues/356>`_: if the master Python
process does not have :data:`sys.executable` set, the default Python
interpreter used for new children on the local machine defaults to
``"/usr/bin/python"``.
* `#366 <https://github.com/dw/mitogen/issues/366>`_,
`#380 <https://github.com/dw/mitogen/issues/380>`_: attempts by children to
import :mod:`__main__` where the main program module lacks an execution guard

@ -436,7 +436,7 @@ def run(dest, router, args, deadline=None, econtext=None):
ssh_path = os.path.join(tmp_path, 'ssh')
fp = open(ssh_path, 'w')
try:
fp.write('#!%s\n' % (sys.executable,))
fp.write('#!%s\n' % (mitogen.parent.get_sys_executable(),))
fp.write(inspect.getsource(mitogen.core))
fp.write('\n')
fp.write('ExternalContext(%r).main()\n' % (
@ -449,7 +449,7 @@ def run(dest, router, args, deadline=None, econtext=None):
env = os.environ.copy()
env.update({
'PATH': '%s:%s' % (tmp_path, env.get('PATH', '')),
'ARGV0': sys.executable,
'ARGV0': mitogen.parent.get_sys_executable(),
'SSH_PATH': ssh_path,
})

@ -85,11 +85,35 @@ OPENPTY_MSG = (
"to avoid PTY use."
)
SYS_EXECUTABLE_MSG = (
"The Python sys.executable variable is unset, indicating Python was "
"unable to determine its original program name. Unless explicitly "
"configured otherwise, child contexts will be started using "
"'/usr/bin/python'"
)
_sys_executable_warning_logged = False
def get_log_level():
return (LOG.level or logging.getLogger().level or logging.INFO)
def get_sys_executable():
"""
Return :data:`sys.executable` if it is set, otherwise return
``"/usr/bin/python"`` and log a warning.
"""
if sys.executable:
return sys.executable
global _sys_executable_warning_logged
if not _sys_executable_warning_logged:
LOG.warn(SYS_EXECUTABLE_MSG)
_sys_executable_warning_logged = True
return '/usr/bin/python'
def get_core_source():
"""
In non-masters, simply fetch the cached mitogen.core source code via the
@ -841,7 +865,7 @@ class Stream(mitogen.core.Stream):
Base for streams capable of starting new slaves.
"""
#: The path to the remote Python interpreter.
python_path = sys.executable
python_path = get_sys_executable()
#: Maximum time to wait for a connection attempt.
connect_timeout = 30.0

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