Python Exception Error [duplicate]

Question

I have never done Python programming before but I have done a lot of .NET in C# There is a need to do some Python and was trying to learn how to throw exceptions in Python.

from __future__ import with_statement

import dbi
import timeit
import datetime
import win32com.client
import os
import datetime
import sys
import codecs
import subprocess
import time
import _winreg


def main():
    retCode=0
    now = datetime.datetime.now()
    print "-----------------------------------------------------"
    print "Start Executing the script", now
    print "-----------------------------------------------------"

    try:
        print "Testing Testing"

    except Exception, err:
        sys.stderr.write('ERROR: %s\n' % str(err))
        retCode=1

    if retCode==1:
        print "======================================"
        print "Errors occured. Please investigate. "
        print "======================================"
    else:
        print "======================================"
        print "No errors found"
        print "======================================"

    print "Retcode:", retCode
    sys.exit(retCode)
main()

Does anyobody know why the above code gives me this error ?

The error is: 
  File "c:\sample.py", line 28
    retCode=1
    ^
IndentationError: unexpected indent

I don't know the solution, but an improvement over the usage of the main() function would be to use if __name__ == '__main__':. — evotopid
– evotopid, Commented Sep 11, 2011 at 17:29

DavidA · Accepted Answer · 2011-09-11 17:31:01Z

3

Check the indentation at retCode=1. If this line has 4 spaces but the line above a tab, it will look the same in your editor but python will complain.

answered Sep 11, 2011 at 17:31

DavidA

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1 Comment

koumides Over a year ago

Thanks. I knew about the 4 spaces for intent. I had though a tab and then 4 spaces. I still don't get the whole concept of spaces in Python :)

Sunjay Varma · Accepted Answer · 2011-09-11 17:31:32Z

1

In your original code, did you mix tabs and spaces? Make sure each line has the same number of spaces per indentation.

answered Sep 11, 2011 at 17:31

Sunjay Varma

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