I'm trying to install aiohttp on a Python 3.7 virtualenv. It's failing with an odd AttributeError when trying to install the yarl dependency.
$ pip install aiohttp
Collecting aiohttp
Using cached https://files.pythonhosted.org/packages/33/60/c21acb7002110699761d3dec36fad3f5087c2752a4eb495444f877db6
553/aiohttp-3.5.4-cp37-cp37m-manylinux1_x86_64.whl
Collecting multidict<5.0,>=4.0 (from aiohttp)
Downloading https://files.pythonhosted.org/packages/88/f0/4d4cbd1a3744e3985efa49682352d0703df653ffa76b81f10fed86599a
50/multidict-4.5.2-cp37-cp37m-manylinux1_x86_64.whl (309kB)
100% |████████████████████████████████| 317kB 65.0MB/s
Collecting attrs>=17.3.0 (from aiohttp)
Using cached https://files.pythonhosted.org/packages/3a/e1/5f9023cc983f1a628a8c2fd051ad19e76ff7b142a0faf329336f9a62a
514/attrs-18.2.0-py2.py3-none-any.whl
Requirement already satisfied: async-timeout<4.0,>=3.0 in /fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site
-packages (from aiohttp) (3.0.1)
Requirement already satisfied: chardet<4.0,>=2.0 in /fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packa
ges (from aiohttp) (3.0.4)
Collecting yarl<2.0,>=1.0 (from aiohttp)
Downloading https://files.pythonhosted.org/packages/fb/84/6d82f6be218c50b547aa29d0315e430cf8a23c52064c92d0a8377d7b7357/yarl-1.3.0.tar.gz (159kB)
100% |████████████████████████████████| 163kB 87.1MB/s
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-install-od3qiiy3/yarl/setup.py", line 102, in <module>
setup(**args)
File "/fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packages/setuptools/__init__.py", line 142, i
n setup
_install_setup_requires(attrs)
File "/fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packages/setuptools/__init__.py", line 131, i
n _install_setup_requires
(k, v) for k, v in attrs.items()
File "/fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packages/setuptools/dist.py", line 442, in __
init__
k: v for k, v in attrs.items()
File "/usr/lib/python3.7/distutils/dist.py", line 292, in __init__
self.finalize_options()
File "/fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packages/setuptools/dist.py", line 600, in fi
nalize_options
ep.require(installer=self.fetch_build_egg)
File "/fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packages/pkg_resources/__init__.py", line 236
7, in require
reqs = self.dist.requires(self.extras)
File "/fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packages/pkg_resources/__init__.py", line 263
5, in requires
dm = self._dep_map
File "/fast/src/mobitroll/merlin/tools/ws/.py37/lib/python3.7/site-packages/pkg_resources/__init__.py", line 269
1, in __getattr__
raise AttributeError(attr)
AttributeError: _dep_map
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-od3qiiy3/yarl/
I tried to look for documented issues in github for aiohttp and yarl but found nothing of sorts.
Also tried to install slightly older versions of yarl (1.0, 1.1, 1.2) but without much luck either.
Any idea what could be the cause of this error?
Upgrading setuptools with pip install -U setuptools fixed the issue.