[Tutor] Need help appending data to a logfile

Dave Angel davea at davea.name
Thu Jun 27 18:54:18 CEST 2013


On 06/27/2013 12:33 PM, Matt D wrote:
>
>>
>>    <SNIP>
>>> I forgot to mention i have the 'with open(mypath, "a") as f: commented
>>> out because it was making an indentation error that i could not fix.
>>
>> It was indented, and should not have been.  The extra indentation
>> FOLLOWS the with statement, it's not correct to indent the line itself.
>>
>> Line it up with mypath=
>>
>> Isn't the rule for indentation simple enough?  If a line ends with a
>> colon, you indent the next line.  And keep indenting till the scope of
>> that colon ends.  I don't know of any exceptions, but if there are any,
>> they're rare.  Anyway, when the compiler complains, there aren't many
>> choices on how to change the line, so experimentation should teach you
>> pretty quickly.
>>
>> Maybe you're getting confused about indentation because your editor
>> doesn't handle tabs correctly.  If you mix tabs and spaces, you'll drive
>> yourself crazy, at least with 2.x   Python 3 tells you about it with a
>> new error.  The easy answer (and my strong preference) is to never use
>> tabs in Python sources.  Expand all your existing tabs (to 4 column
>> intervals), and tell your editor to always expand the tab key when
>> entering.
>>
>> I suggest you fix this problem first, and understand the fix, before
>> going off and using shutil.copy().
>>
>>
> Thanks!  I do have 'with open(mypath, "a") as f:' lined up with the
> mypath line above (not sure why it indented with the paste to email) and
> I already replaced all tabs with spaces. seriously there is not one
> single tab in the whole program. but when that line is not commented out
> the program bails with the indentation error, other wise its fine.  .
> So i don't know what i can do about that.
> Thanks!

What text editor are you using?  Can you literally move the cursor one 
column at a time and see what column each of those two lines are in? 
It's a little hard to imagine your email program converting all those 
spaces to tabs.

If it were my file, and I got to this point, I'd be using a dump program 
to look at the actual file.  Or I'd configure my text editor for 
40-column tabs, to make them very visible and very obnoxious.

In Linux, use tweak, or any of dozens of others.  Likewise there are 
lots in Windows -- no idea what one to suggest.

-- 
DaveA


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