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__init__.py
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121 lines (102 loc) · 3.95 KB
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# The MIT License
#
# Copyright (c) 2008 Bob Farrell
# Copyright (c) 2013-2020 Sebastian Ramacher
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
importos
importsys
importtraceback
importbpython
frombpython.argsimportversion_banner,copyright_banner
from .debuggerimportBPdb
fromoptparseimportOptionParser
frompdbimportRestart
__author__=bpython.__author__
__copyright__=bpython.__copyright__
__license__=bpython.__license__
__version__=bpython.__version__
defset_trace():
"""Just like pdb.set_trace(), a helper function that creates
a debugger instance and sets the trace."""
debugger=BPdb()
debugger.set_trace(sys._getframe().f_back)
# Adopted verbatim from pdb for completeness:
defpost_mortem(t=None):
# handling the default
iftisNone:
# sys.exc_info() returns (type, value, traceback) if an exception is
# being handled, otherwise it returns None
t=sys.exc_info()[2]
iftisNone:
raiseValueError(
"A valid traceback must be passed if no exception is being handled."
)
p=BPdb()
p.reset()
p.interaction(None,t)
defpm():
post_mortem(getattr(sys,"last_traceback",None))
defmain():
parser=OptionParser(usage="Usage: %prog [options] [file [args]]")
parser.add_option(
"--version","-V",action="store_true",help="Print version and exit."
)
options,args=parser.parse_args(sys.argv)
ifoptions.version:
print(version_banner(base="bpdb"))
print(copyright_banner())
return0
iflen(args)<2:
print("usage: bpdb scriptfile [arg] ...")
return2
# The following code is based on Python's pdb.py.
mainpyfile=args[1]
ifnotos.path.exists(mainpyfile):
print(f"Error:{mainpyfile} does not exist.")
return1
# Hide bpdb from argument list.
delsys.argv[0]
# Replace bpdb's dir with script's dir in front of module search path.
sys.path[0]=os.path.dirname(mainpyfile)
pdb=BPdb()
whileTrue:
try:
pdb._runscript(mainpyfile)
ifpdb._user_requested_quit:
break
print("The program finished and will be restarted.")
exceptRestart:
print(f"Restarting{mainpyfile} with arguments:")
print("\t"+" ".join(sys.argv[1:]))
exceptSystemExit:
# In most cases SystemExit does not warrant a post-mortem session.
print(
"The program exited via sys.exit(). Exit status: ",
)
print(sys.exc_info()[1])
except:
traceback.print_exc()
print("Uncaught exception. Entering post mortem debugging.")
print("Running 'cont' or 'step' will restart the program.")
t=sys.exc_info()[2]
pdb.interaction(None,t)
print(
f"Post mortem debugger finished. The{mainpyfile} will be restarted."
)