Arch Linux

The current version of ptpython relies on an older version of the prompt toolkit:

Traceback (most recent call last):
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 645, in _build_master
ws.require(__requires__)
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 946, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 838, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (prompt-toolkit 0.36 (/usr/lib/python3.4/site-packages), Requirement.parse('prompt-toolkit==0.35'), {'ptpython'})

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/bin/ptpython", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 3070, in <module>
@_call_aside
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 3056, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 3083, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 647, in _build_master
return cls._build_from_requirements(__requires__)
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 660, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 833, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'prompt-toolkit==0.35' distribution was not found and is required by ptpython