Description:
mitmproxy does not work, because it relies on python2-construct < 2.6, but the version in the repositories is 2.6.2. pacman won't report a dependency error, but mitmproxy will crash instantly because of an API change introduced in 2.6.1.

See https://github.com/construct/construct/issues/92 for details (2.5.5 has been renamed to 2.6.1).

Currently, python2-construct 2.6.2 is in the community repo, which is a pre-release version according to the Github releases page: https://github.com/construct/construct/releases

The latest stable version of python2-construct is 2.5.3.


Additional info:
community/mitmproxy 0.17-2
community/python2-construct 2.6.2-1


Steps to reproduce:

# pacman -Syu mitmproxy

$ mitmproxy --help
Traceback (most recent call last):
File "/usr/bin/mitmproxy", line 9, in <module>
load_entry_point('mitmproxy==0.17', 'console_scripts', 'mitmproxy')()
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 565, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2589, in load_entry_point
return ep.load()
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2249, in load
return self.resolve()
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2255, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/usr/lib/python2.7/site-packages/mitmproxy/main.py", line 7, in <module>
from . import version, cmdline
File "/usr/lib/python2.7/site-packages/mitmproxy/cmdline.py", line 11, in <module>
from .proxy import config
File "/usr/lib/python2.7/site-packages/mitmproxy/proxy/__init__.py", line 3, in <module>
from .server import ProxyServer, DummyServer
File "/usr/lib/python2.7/site-packages/mitmproxy/proxy/server.py", line 12, in <module>
from ..protocol import Kill
File "/usr/lib/python2.7/site-packages/mitmproxy/protocol/__init__.py", line 30, in <module>
from .tls import TlsLayer
File "/usr/lib/python2.7/site-packages/mitmproxy/protocol/tls.py", line 11, in <module>
from ..contrib.tls._constructs import ClientHello
File "/usr/lib/python2.7/site-packages/mitmproxy/contrib/tls/_constructs.py", line 69, in <module>
PascalString("name", length_field=UBInt16("length")),
TypeError: __init__() got an unexpected keyword argument 'length_field'