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Give more helpful messages for python completion setup failures

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* lisp/progmodes/python.el (python-shell-completion-native-setup): In
case the completion setup failed with some exception, print out the
exception type and message.  If libedit is detected, raise an
exception, since this is known to fail.
This commit is contained in:
Noam Postavsky 2017-10-02 22:54:36 -04:00
parent f6efc06723
commit b33808ce77
1 changed files with 5 additions and 1 deletions
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6
lisp/progmodes/python.el
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@ -3442,6 +3442,8 @@ def __PYTHON_EL_native_completion_setup():
instance.rlcomplete = new_completer
if readline.__doc__ and 'libedit' in readline.__doc__:
raise Exception('''libedit based readline is known not to work,
see etc/PROBLEMS under \"In Inferior Python mode, input is echoed\".''')
readline.parse_and_bind('bind ^I rl_complete')
else:
readline.parse_and_bind('tab: complete')
@ -3450,7 +3452,9 @@ def __PYTHON_EL_native_completion_setup():
print ('python.el: native completion setup loaded')
except:
print ('python.el: native completion setup failed')
import sys
print ('python.el: native completion setup failed, %s: %s'
% sys.exc_info()[:2])
__PYTHON_EL_native_completion_setup()" process)
(when (and