Leo 6.8.8 is feature complete. Coming in about week

[Edward K. Ream]

The only remaining changes to the 6.8.8 branch will be to distribution-related files: scripts and documentation, that kind of thing.

Please keep testing the 6.8.8 branch.  Thanks!

Edward

[Edward K. Ream]

On Saturday, April 4, 2026 at 8:14:45 AM UTC-5 Edward K. Ream wrote:

The only remaining changes to the 6.8.8 branch will be to distribution-related files: scripts and documentation, that kind of thing.

I'm now planning to release 6.8.8 on Friday, April 17.

Edward

[Viktor Ransmayr]

Hello Edward,

For another project of mine, I needed a complete new setup of a Linux system - and - found problems with a fresh installation of Leo from GitHub.

I verified the issue in a Debian 13 - based Test VM with both the '6.8.8' ( see Log-001) as well as with the 'devel' ( see Log-002) branch.

With kind regards,

Viktor

### Log-001: ###

    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$ python3 -m pip install -r requirements.txt
    ERROR: Exception:
    Traceback (most recent call last):
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/markers.py", line 280, in __init__
        self._markers = _normalize_extra_values(_parse_marker(marker))
                                                ~~~~~~~~~~~~~^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_parser.py", line 253, in parse_marker
        return _parse_full_marker(Tokenizer(source, rules=DEFAULT_RULES))
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_parser.py", line 258, in _parse_full_marker
        tokenizer.expect("END", expected="end of marker expression")
        ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_tokenizer.py", line 143, in expect
        raise self.raise_syntax_error(f"Expected {expected}")
              ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_tokenizer.py", line 168, in raise_syntax_error
        raise ParserSyntaxError(
        ...<3 lines>...
        )
    pip._vendor.packaging._tokenizer.ParserSyntaxError: Expected end of marker expression
        platform_system=="Windows" ; python_version <= "3.14"
                                   ^

    The above exception was the direct cause of the following exception:

    Traceback (most recent call last):
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/base_command.py", line 105, in _run_wrapper
        status = _inner_run()
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/base_command.py", line 96, in _inner_run
        return self.run(options, args)
               ~~~~~~~~^^^^^^^^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/req_command.py", line 68, in wrapper
        return func(self, options, args)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/commands/install.py", line 351, in run
        reqs = self.get_requirements(args, options, finder, session)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/req_command.py", line 271, in get_requirements
        req_to_add = install_req_from_parsed_requirement(
            parsed_req,
        ...<7 lines>...
            ),
        )
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/req/constructors.py", line 480, in install_req_from_parsed_requirement
        req = install_req_from_line(
            parsed_req.requirement,
        ...<14 lines>...
            config_settings=config_settings,
        )
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/req/constructors.py", line 405, in install_req_from_line
        parts = parse_req_from_line(name, line_source)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/req/constructors.py", line 318, in parse_req_from_line
        markers = Marker(markers_as_string)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/markers.py", line 298, in __init__
        raise InvalidMarker(str(e)) from e
    pip._vendor.packaging.markers.InvalidMarker: Expected end of marker expression
        platform_system=="Windows" ; python_version <= "3.14"
                                   ^
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$

### Log-002: ###

    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$ git branch
    * 6.8.8
      devel
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$ git checkout devel
    Switched to branch 'devel'
    Your branch is up to date with 'origin/devel'.
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$ git pull
    Already up to date.
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$ python3 -m pip install -r requirements.txt
    ERROR: Exception:
    Traceback (most recent call last):
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/markers.py", line 280, in __init__
        self._markers = _normalize_extra_values(_parse_marker(marker))
                                                ~~~~~~~~~~~~~^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_parser.py", line 253, in parse_marker
        return _parse_full_marker(Tokenizer(source, rules=DEFAULT_RULES))
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_parser.py", line 258, in _parse_full_marker
        tokenizer.expect("END", expected="end of marker expression")
        ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_tokenizer.py", line 143, in expect
        raise self.raise_syntax_error(f"Expected {expected}")
              ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/_tokenizer.py", line 168, in raise_syntax_error
        raise ParserSyntaxError(
        ...<3 lines>...
        )
    pip._vendor.packaging._tokenizer.ParserSyntaxError: Expected end of marker expression
        platform_system=="Windows" ; python_version <= "3.14"
                                   ^

    The above exception was the direct cause of the following exception:

    Traceback (most recent call last):
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/base_command.py", line 105, in _run_wrapper
        status = _inner_run()
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/base_command.py", line 96, in _inner_run
        return self.run(options, args)
               ~~~~~~~~^^^^^^^^^^^^^^^
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/req_command.py", line 68, in wrapper
        return func(self, options, args)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/commands/install.py", line 351, in run
        reqs = self.get_requirements(args, options, finder, session)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/cli/req_command.py", line 271, in get_requirements
        req_to_add = install_req_from_parsed_requirement(
            parsed_req,
        ...<7 lines>...
            ),
        )
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/req/constructors.py", line 480, in install_req_from_parsed_requirement
        req = install_req_from_line(
            parsed_req.requirement,
        ...<14 lines>...
            config_settings=config_settings,
        )
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/req/constructors.py", line 405, in install_req_from_line
        parts = parse_req_from_line(name, line_source)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_internal/req/constructors.py", line 318, in parse_req_from_line
        markers = Marker(markers_as_string)
      File "/home/user/PyVE/Leo/lib/python3.13/site-packages/pip/_vendor/packaging/markers.py", line 298, in __init__
        raise InvalidMarker(str(e)) from e
    pip._vendor.packaging.markers.InvalidMarker: Expected end of marker expression
        platform_system=="Windows" ; python_version <= "3.14"
                                   ^
    (Leo) user@Debian-Test-DVM:~/PyVE/Leo/leo-editor$

[Edward K. Ream]

On Wed, Apr 8, 2026 at 10:57 AM Viktor Ransmayr <viktor....@gmail.com> wrote:

> I...found problems with a fresh installation of Leo from GitHub.

..

        raise InvalidMarker(str(e)) from e
    pip._vendor.packaging.markers.InvalidMarker: Expected end of marker expression
        platform_system=="Windows" ; python_version <= "3.14"

Thanks for this report. I'll fix it soon.

Edward

[Edward K. Ream]

Rev  5a3ca2e attempts a fix. How does it work for you?

Edward

[Viktor Ransmayr]

Hello Edward,

Am Do., 9. Apr. 2026 um 17:03 Uhr schrieb Edward K. Ream <edre...@gmail.com>:

On Thu, Apr 9, 2026 at 9:53 AM Edward K. Ream <edre...@gmail.com> wrote:

On Wed, Apr 8, 2026 at 10:57 AM Viktor Ransmayr <viktor....@gmail.com> wrote:

> I...found problems with a fresh installation of Leo from GitHub.

Thanks for this report. I'll fix it soon.

Rev  5a3ca2e attempts a fix. How does it work for you?

The fix is working for me. - Thanks a lot !

With kind regards,

Viktor

[Edward K. Ream]

On Thu, Apr 9, 2026 at 1:37 PM Viktor Ransmayr <viktor....@gmail.com> wrote:

> The fix is working for me. - Thanks a lot !

You're welcome. Thanks again for reporting the issue.

Edward