Unable to uninstall python 2.7 via the Cygwin setup program

Unable to uninstall python 2.7 via the Cygwin setup program

[Andrew Scott]

Hi.

I am running Cygwin 64-bit on Windows 7 and had installed the
following packages using the Cygwin Setup program (v2.850 64 bit):
  python
  python-openssl
  python-setuptools
  python-tkinter
  python3
  python3-openssl
  python3-tkinter
I then tried to uninstall them using the same tool, and while I could
uninstall all the python3 packages, I couldn't uninstall python and
python-tkinter. When I tried to uninstall one, it would pop up an
error about the other being a dependency, and the same sort of thing
happened when I tried to uninstall both. As a result, I can't get rid
of python.

Does this make sense? I'm hoping someone can suggest a simple fix.

Thanks.

Andrew Scott
http://www.aes.id.au/

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Re: Unable to uninstall python 2.7 via the Cygwin setup program

[Larry Hall (Cygwin)]

On 07/28/2014 12:01 AM, Andrew Scott wrote:
> Hi.
>
> I am running Cygwin 64-bit on Windows 7 and had installed the
> following packages using the Cygwin Setup program (v2.850 64 bit):
>    python
>    python-openssl
>    python-setuptools
>    python-tkinter
>    python3
>    python3-openssl
>    python3-tkinter
> I then tried to uninstall them using the same tool, and while I could
> uninstall all the python3 packages, I couldn't uninstall python and
> python-tkinter. When I tried to uninstall one, it would pop up an
> error about the other being a dependency, and the same sort of thing
> happened when I tried to uninstall both. As a result, I can't get rid
> of python.
>
> Does this make sense? I'm hoping someone can suggest a simple fix.

This is a known limitation of setup*.exe.  Its dependency checking is
focused on installing, not uninstalling.  As a result, you can sometimes
get into a dependency loop like this when you're trying to uninstall.
For now, there is no solution using setup*.exe.  You can, however, remove
the files from the packages you don't want by hand by using the list of
files it installed as returned by *cygcheck -l <package name>*.  That
should take care of the majority of what was done in the installation,
if not all of it.

-- 
Larry

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