我想用pip: ikpy库安装这个库。但是pip给出的错误如下:
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
IOError: [Errno 2] No such file or directory: '/tmp/pip-build-oYTjdr/ikpy/setup.py'
我从错误中理解的是，pip找不到setup.py，因为库中有setup.cfg。我尝试升级pip，得到一个不同的错误。
$ pip install --upgrade pip
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-KCnfi9/pip/setup.py", line 7
def read(rel_path: str) -> str:
^
SyntaxError: invalid syntax
我也试过pip3:
$ pip3 install ikpy
ModuleNotFoundError: No module named 'pip._vendor.pkg_resources'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/bin/pip3", line 9, in <module>
from pip import main
File "/usr/lib/python3/dist-packages/pip/__init__.py", line 13, in <module>
from pip.exceptions import InstallationError, CommandError, PipError
File "/usr/lib/python3/dist-packages/pip/exceptions.py", line 6, in <module>
from pip._vendor.six import iteritems
File "/usr/lib/python3/dist-packages/pip/_vendor/__init__.py", line 75, in <module>
vendored("pkg_resources")
File "/usr/lib/python3/dist-packages/pip/_vendor/__init__.py", line 36, in vendored
__import__(modulename, globals(), locals(), level=0)
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 668, in _load_unlocked
File "<frozen importlib._bootstrap>", line 638, in _load_backward_compatible
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2927, in <module>
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2913, in _call_aside
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2952, in _initialize_master_working_set
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 956, in subscribe
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2952, in <lambda>
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2515, in activate
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2097, in declare_namespace
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2047, in _handle_ns
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__.py", line 2066, in _rebuild_mod_path
AttributeError: '_NamespacePath' object has no attribute 'sort'
我该怎么办?
Python 3.7.10 python3-pip: (8.1.1-2ubuntu0.6)。
注意:
我用这些命令解决了，现在可以用pip3安装了:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python3 get-pip.py
pip3 install --upgrade setuptools
(此消息是在使用pip3更新问题之前创建的)
您使用的pip命令很可能是用于Python 2的。你能用pip3代替吗?
From ikpy library:
Starting with IKPy v3.1, only Python 3 is supported.
For versions before v3.1, the library can work with both versions of Python (2.7 and 3.x).
你可以在这里下载与python 2兼容的最新版本:https://github.com/Phylliade/ikpy/releases/tag/v3.0.1
注意:不建议使用python 2.7，因为python 2.7版本的支持将在2020年1月1日结束
升级你的Pip
pip install --upgrade pip
则安装ikpy现在它应该启动并运行了;-)
pip install ikpy
已安装并检查:Ubuntu 20.04, Pip 21.3, Python 3.8.10