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(format_exception): New function.

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(eexecfile): Use it instead of traceback.print_exception.
Don't use execfile to avoid a bug in w32.
This commit is contained in:
Stefan Monnier 2007-04-04 14:48:47 +00:00
parent 8ea81ae0ef
commit ade817bdf2
2 changed files with 55 additions and 13 deletions
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16
etc/ChangeLog
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@ -1,3 +1,9 @@
2007-04-04 Slawomir Nowaczyk <slawomir.nowaczyk.847@student.lu.se>
* emacs.py (format_exception): New function.
(eexecfile): Use it instead of traceback.print_exception.
Don't use execfile to avoid a bug in w32.
2007-04-04 Glenn Morris <rgm@gnu.org>
* MACHINES: Mention preprocessor to use with /opt/SUNWspro/bin/cc
@ -367,7 +373,7 @@
(section{TODO Items and Checkboxes}): Checkbox keys moved to this
section, added documentation for the key `C-c #'.
2006-11-05 Slawomir Nowaczyk <slawek@cs.lth.se> (tiny change)
2006-11-05 Slawomir Nowaczyk <slawek@cs.lth.se>
* emacs.py (eargs): Provide eldoc message for builtin types.
Make sure eargs always outputs sentinel, to avoid Emacs freeze.
@ -462,7 +468,7 @@
(eimport): Use __main__ rather than `emacs' namespace.
(modpath): New fun.
2006-08-20 Slawomir Nowaczyk <slawomir.nowaczyk.847@student.lu.se> (tiny change)
2006-08-20 Slawomir Nowaczyk <slawomir.nowaczyk.847@student.lu.se>
* emacs.py (eexecfile): Use the __main__ rather than `emacs' namespace.
@ -725,8 +731,8 @@
* pl-refcard.tex (section{Info}): Ditto. Translation suggested by
Slawomir Nowaczyk <slawomir.nowaczyk.847@student.lu.se>.
* cs-refcard.tex (section{Info}): Use `s' instead of `M-s'. Entry
for `i' is not translated yet.
* cs-refcard.tex (section{Info}): Use `s' instead of `M-s'.
Entry for `i' is not translated yet.
* pt-br-refcard.tex (section{Info}): Ditto.
@ -1455,7 +1461,7 @@
* NEWS: Lots of clarifications and cleanups.
2005-05-05 Slawomir Nowaczyk <slawek@cs.lth.se> (tiny change)
2005-05-05 Slawomir Nowaczyk <slawek@cs.lth.se>
* TUTORIAL.pl: Updated header.

52
etc/emacs.py
View file

@ -25,20 +25,56 @@
__all__ = ["eexecfile", "eargs", "complete", "ehelp", "eimport", "modpath"]
def format_exception (filename, should_remove_self):
type, value, tb = sys.exc_info ()
sys.last_type = type
sys.last_value = value
sys.last_traceback = tb
if type is SyntaxError:
try: # parse the error message
msg, (dummy_filename, lineno, offset, line) = value
except:
pass # Not the format we expect; leave it alone
else:
# Stuff in the right filename
value = SyntaxError(msg, (filename, lineno, offset, line))
sys.last_value = value
res = traceback.format_exception_only (type, value)
# There are some compilation errors which do not provide traceback so we
# should not massage it.
if should_remove_self:
tblist = traceback.extract_tb (tb)
del tblist[:1]
res = traceback.format_list (tblist)
if res:
res.insert(0, "Traceback (most recent call last):\n")
res[len(res):] = traceback.format_exception_only (type, value)
# traceback.print_exception(type, value, tb)
for line in res: print line,
def eexecfile (file):
"""Execute FILE and then remove it.
Execute the file within the __main__ namespace.
If we get an exception, print a traceback with the top frame
(ourselves) excluded."""
# We cannot use real execfile since it has a bug where the file stays
# locked forever (under w32) if SyntaxError occurs.
# --- code based on code.py and PyShell.py.
try:
try: execfile (file, __main__.__dict__)
except:
(type, value, tb) = sys.exc_info ()
# Lose the stack frame for this location.
tb = tb.tb_next
if tb is None: # print_exception won't do it
print "Traceback (most recent call last):"
traceback.print_exception (type, value, tb)
try:
source = open (file, "r").read()
code = compile (source, file, "exec")
# Other exceptions (shouldn't be any...) will (correctly) fall
# through to "final".
except (OverflowError, SyntaxError, ValueError):
# FIXME: When can compile() raise anything else than
# SyntaxError ????
format_exception (file, False)
return
try:
exec code in __main__.__dict__
except:
format_exception (file, True)
finally:
os.remove (file)