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

[n952162]

On 11/16/20 12:17 AM, cal wrote:
> 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
>

Thank you for the tip on "eselect":

$ eselect python list
Available Python interpreters, in order of preference:
   [1]   python3.7
   [2]   python3.8 (fallback)
   [3]   python3.6 (fallback)