pip install pyknotid发生的问题

pip install pyknotid发生的问题 某windows系统笔记本： pip install pyknotid发生问题：

ERROR: Command errored out with exit status 1:      command: 'D:Program Files (x86)pythonpython.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\xxx\AppData\Local\Temp\pip-install-t1frcae0\planarity\setup.py'"'"'; __file__='"'"'C:\Users\xxx\AppData\Local\Temp\pip-install-t1frcae0\planarity\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:UsersxxxAppDataLocalTemppip-record-09814cs_install-record.txt' --single-version-externally-managed --compile          cwd: C:UsersxxxAppDataLocalTemppip-install-t1frcae0planarity     Complete output (20 lines):     running install     running build     running build_py     creating build     creating buildlib.win-amd64-3.7     creating buildlib.win-amd64-3.7planarity     copying planarityplanarity_functions.py -> buildlib.win-amd64-3.7planarity     copying planarityplanarity_networkx.py -> buildlib.win-amd64-3.7planarity     copying planarity__init__.py -> buildlib.win-amd64-3.7planarity     creating buildlib.win-amd64-3.7planaritytests     copying planarityteststest.py -> buildlib.win-amd64-3.7planaritytests     copying planarityteststest_planarity.py -> buildlib.win-amd64-3.7planaritytests     copying planarityteststest_planarity_networkx.py -> buildlib.win-amd64-3.7planaritytests     copying planaritytests__init__.py -> buildlib.win-amd64-3.7planaritytests     running build_ext     cythoning planarity/planarity.pyx to planarityplanarity.c     D:Program Files (x86)pythonlibsite-packagesCythonCompilerMain.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:UsersxxxAppDataLocalTemppip-install-t1frcae0planarityplanarityplanarity.pyx       tree = Parsing.p_module(s, pxd, full_module_name)     building 'planarity.planarity' extension     error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": Download Visual Studio Tools - Install Free for Windows, Mac, Linux     ---------------------------------------- ERROR: Command errored out with exit status 1: 'D:Program Files (x86)pythonpython.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\xxx\AppData\Local\Temp\pip-install-t1frcae0\planarity\setup.py'"'"'; __file__='"'"'C:\Users\xxx\AppData\Local\Temp\pip-install-t1frcae0\planarity\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:UsersxxxAppDataLocalTemppip-record-09814cs_install-record.txt' --single-version-externally-managed --compile Check the logs for full command output.

解决： 初入python大坑之pip install（包安装）问题 - 知乎 下载并安装了Visual Studio 2017 Build Tool （Community），选择workload中的desktop development with c++

再次尝试pip install，则回到以前的博客 所述的情况，按记录解决即可。