[Tutor] ImportError: No module named '_sysconfigdata_m'

[Albert-Jan Roskam]

----- Original Message -----

> From: Oscar Benjamin <oscar.j.benjamin at gmail.com>
> To: Steven D'Aprano <steve at pearwood.info>
> Cc: "Tutor at python.org" <tutor at python.org>
> Sent: Wednesday, September 25, 2013 11:58 AM
> Subject: Re: [Tutor] ImportError: No module named '_sysconfigdata_m'
> 
> On 25 September 2013 00:25, Steven D'Aprano <steve at pearwood.info> 
> wrote:
>>  On Tue, Sep 24, 2013 at 01:33:23PM +0100, Oscar Benjamin wrote:
>> 
>>>  If you want to mess with your system 'sudo rm -rf' is 
> definitely the
>>>  way to go. Don't bother reporting this as a bug since you've
>>>  *definitely* voided the warranty (that your free software didn't 
> come
>>>  with).
>> 
>>  I first read that as "sudo rm -rf ." and thought "That's 
> a bit harsh,
>>  isn't it?"
> 
> I guess it does seem harsh but it's definitely true. Albert-Jan still
> hasn't explained what he was trying to achieve with that command but I
> stand by my claim that whatever it was can be achieved in a better and
> safer way.

I just wanted to get rid of Python 3.2 as I thought it had no purpose.
Maybe I also could have done apt-get install --only-upgrade python3.
apt-get update does not update python 3.2 to 3.3.
 
> If you try 'sudo apt-get remove python3'  then apt will check the
> database of installed packages to see if anything depends on the
> python3 package. 

Thanks. I will use that from now on. Much better indeed. But isn't it safer to also specify the minor python version?

If nothing depends on it then it will be safely
> removed and the apt database will be updated to reflect the fact that
> it is no longer installed. Otherwise it will report the full list of
> packages that would also need to be removed because they depend on
> python3 and ask if you want to remove all of them. At this point
> you'll probably think "What on earth are all those packages? Maybe I
> need them." and then answer no.
> 
> On the other hand 'sudo rm -rf /some/system/dir' will check nothing
> and will simply remove the files. The combination of sudo and the -f
> flag means "I know what I'm doing so shut up and do what I say". I
> rarely feel confident enough to do that and I can't think of the last
> time I had a reason to do it.
> 
> I regularly use 'rm -rf' because that's needed to delete e.g. a git
> repository which contains a whole load of files marked as read-only.
> Without the -f you'll have to answer 'y' thousands of times. But I
> don't usually have git repositories that are owned by root so I don't
> need the sudo part (I have sometimes used git to manage system files
> like fstab, grub etc.).
> 
> 
> Oscar
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