在python中是否有一种方法，如果我创建一个.py文件然后将导入另一个.py文件，该文件具有所有异常的catch子句，

Question

Is there a way in python that if i create a .py file and then will import in a different .py file which has the catch clauses for all the possible exceptions, in such a way

suppose we have a .py file lets say test1

test1.py:

import xyz          
x=5;
print x;
func1()

Now we have test2.py ,which has a try block and except caused for all the possible exceptions. So what I need is that I want the content of test1.py to come inside the try of test2.py .Is there a way either or invoking or importing that I can achieve this?

test2.py

import traceback
import sys
import linecache
# import your file here

try:
    import first

    # invoke your files main method here and run the module
    # it is normal behavior to expect an indentation error if your file and method have not been invoked correctly


except SyntaxError as e:
        exc_type, exc_value, exc_traceback = sys.exc_info()
        #print(sys.exc_info())
        formatted_lines = traceback.format_exc().splitlines()
        #print(formatted_lines)
        temp=formatted_lines[len(formatted_lines) - 3].split(',')
        line_no = str(formatted_lines[len(formatted_lines) - 3]).strip('[]')
        line=line_no.strip(',')
        #print(line[1])

        print " The error method thrown by the stacktrace is  " "'" ,e , "'"
        print " ********************************************* Normal Stacktrace*******************************************************************"
        print(traceback.format_exc())

Answer 1

How about:

test2.py:

try:
    import test1
except ...:
    ...

If an exception is raised while importing test1 , the try...except block in test2 will have a chance to deal with it.

---

Or, you could put the code in test1.py inside of a main function:

def main():    
    import xyz          
    x=5;
    print x;
    func1()

and have test2.py look like this:

import test1

try:
    import first
    # invoke your files main method here and run the module
    test1.main()
except SyntaxError as e:

Answer 2

You might want to check out decorators. There is a pretty in depth description of them here Understanding Python Decorators .

#TEST1.py
from exception_catcher import exception_catcher
@exception_catcher
def testfun1(a,b,c):
    d = a+b+c
    return d

print testfun1('c','a','t')
print testfun1('c',5,'t')

The decorator class

#exception_catcher.py
class exception_catcher(object):
def __init__(self,f):
    self.fun = f

def __call__(self,*args,**kwargs):
    try:
        return self.fun(*args,**kwargs)
    except:
        return "THERE WAS AN EXCEPTION"

The command line

>> python TEST1.py
cat
THERE WAS AN EXCEPTION

Hope that helps.