在
Python中是否有类似的机制,-b对bash有效果？
以下是此模式下bash的一些示例输出：
+ for src in cpfs.c log.c popcnt.c ssse3_popcount.c blkcache.c context.c types.c device.c ++ my_mktemp blkcache.c.o +++ mktemp -t blkcache.c.o.2160.XXX ++ p=/tmp/blkcache.c.o.2160.IKA ++ test 0 -eq 0 ++ echo /tmp/blkcache.c.o.2160.IKA + obj=/tmp/blkcache.c.o.2160.IKA
解决方法
也许使用
sys.settrace：
使用traceit()打开跟踪,使用traceit(False)关闭跟踪.
import sys
import linecache
def _traceit(frame,event,arg):
'''
http://www.dalkescientific.com/writings/diary/archive/2005/04/20/tracing_python_code.html
'''
if event == "line":
lineno = frame.f_lineno
filename = frame.f_globals["__file__"]
if (filename.endswith(".pyc") or
filename.endswith(".pyo")):
filename = filename[:-1]
name = frame.f_globals["__name__"]
line = linecache.getline(filename,lineno)
print "%s # %s:%s" % (line.rstrip(),name,lineno,)
return _traceit
def _passit(frame,arg):
return _passit
def traceit(on=True):
if on: sys.settrace(_traceit)
else: sys.settrace(_passit)
def mktemp(src):
pass
def my_mktemp(src):
mktemp(src)
p=src
traceit()
for src in ('cpfs.c','log.c',):
my_mktemp(src)
traceit(False)
产量
mktemp(src) # __main__:33 pass # __main__:30 p=src # __main__:34 mktemp(src) # __main__:33 pass # __main__:30 p=src # __main__:34 if on: sys.settrace(_traceit) # __main__:26 else: sys.settrace(_passit) # __main__:27