Re: [gentoo-user] sqlite3 not available in python3?

[cal]

On 11/15/20 3:10 PM, n952162 wrote:
> On 11/16/20 12:06 AM, Manuel McLure wrote:
>>
>>
>> On Sun, Nov 15, 2020 at 2:59 PM n952162 <n952162@×××.de
>> <mailto:n952162@×××.de>> wrote:
>>
>>     I'm trying to convert python2 scripts to python3.  A script which
>>     works under python2 gives me this under python3:
>>
>>         ModuleNotFoundError: No module named 'sqlite3'
>>
>>     Any ideas?
>>
>> You might need to add "sqlite" to the USE flags for dev-lang/python
>> and reinstall.
>>
>> --
>> Manuel A. McLure WW1FA <manuel@××××××.org <mailto:manuel@××××××.org>>
>> <http://www.mclure.org <http://www.mclure.org>>
>> ...for in Ulthar, according to an ancient and significant law,
>> no man may kill a cat.                       -- H.P. Lovecraft
>
> $ equery uses python
> [ Legend : U - final flag setting for installation]
> [        : I - package is installed with flag     ]
> [ Colors : set, unset                             ]
>   * Found these USE flags for dev-lang/python-3.8.5:
>   U I
>   - - bluetooth : Build Bluetooth protocol support in socket module
>   - - build     : !!internal use only!! DO NOT SET THIS FLAG YOURSELF!,
> used for creating build images and the first half of bootstrapping [make
> stage1]
>   - - examples  : Install examples, usually source code
>   + + gdbm      : Add support for sys-libs/gdbm (GNU database libraries)
>   - - hardened  : Activate default security enhancements for toolchain
> (gcc, glibc, binutils)
>   + + ipv6      : Add support for IP version 6
>   - - libressl  : Use dev-libs/libressl instead of dev-libs/openssl when
> applicable (see also the ssl useflag)
>   + + ncurses   : Add ncurses support (console display library)
>   + + readline  : Enable support for libreadline, a GNU line-editing
> library that almost everyone wants
> * + + sqlite    : Add support for sqlite - embedded sql database*
>   + + ssl       : Add support for SSL/TLS connections (Secure Socket
> Layer / Transport Layer Security)
>   - - test      : Enable dependencies and/or preparations necessary to
> run tests (usually controlled by FEATURES=test but can be toggled
> independently)
>   - - tk        : Add support for Tk GUI toolkit
>   - - wininst   : Install Windows executables required to create an
> executable installer for MS Windows.
>   + + xml       : Add support for XML files
>
>
>

(My apologies, forgot to include the list on my previous reply)
What is the output of `python --version` for the interpreter you are 
using to execute this script?  Is it possible that your default python3 
interpreter is not 3.8.5 and has different USE flags?  (Keep in mind, 
there may be multiple versions of python3 installed in different slots).

For example, on my machine, /usr/bin/python points to Python 3.6.12, 
while equery uses python displays the USE flags for 3.9.0:

$ python --version
Python 3.6.12
$ equery uses python
  * Found these USE flags for dev-lang/python-3.9.0:
[...]
$ equery uses dev-lang/python:3.6
  * Found these USE flags for dev-lang/python-3.6.12:
[...]

You can set the default Python interpreter with eselect python list / 
eselect python set.

Cal