虚拟环境离线安装

方法2：在联网电脑上安装打包后在离线电脑上解压。

1、联网电脑操作

需要库python3.5+numpy1.16.1+h5py2.10.0+cython0.29.15+open3d-python0.3.0+pandas0.25.3+scikit-learn0.21.3+scipy1.4.1+PyYAML5.4

• 创建虚拟环境并激活

conda create -n virenv python=3.5 pip=20.3.4
conda activate virenv

• 安装三方库

pip install numpy==1.16.1
pip install h5py==2.10.0
pip install cython==0.29.15
pip install open3d-python==0.3.0
pip install pandas==0.25.3
pip install scikit-learn==0.21.3
pip install scipy==1.4.1
pip install PyYAML==5.4# pip list查看已安装库

• 打包虚拟环境

conda pack -n varenv -o varenv.tar.gz

2、离线电脑：虚拟环境安装

将varenv.tar.gz解压到anaconda/envs/下
conda activate varenv激活虚拟环境

3、遇到问题

• fatal error C1083 无法打开包括文件 “io.h” No such file or directory

方法1：右键我的电脑——属性——高级系统设置——环境变量——系统变量（s），在PATH中添加：
C:\Program Files (x86)\Windows Kits\10\Include\<version>\ucrt方法2：在anaconda的命令行中输入命令：conda install libpython

• error: Unable to find vcvarsall.bat

• TypeError: unorderable types: NoneType() >= str()

参考pycharm - Python - Can’t Install Packages: TypeError: unorderable types: NoneType() >= str() - Stack Overflow

running install
running build
running build_ext
Traceback (most recent call last):File "setup.py", line 20, in <module>cmdclass = {'build_ext': build_ext},File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\core.py", line 148, in setupdist.run_commands()File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\dist.py", line 955, in run_commandsself.run_command(cmd)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\command\install.py", line 539, in runself.run_command('build')File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\cmd.py", line 313, in run_commandself.distribution.run_command(command)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\command\build.py", line 135, in runself.run_command(cmd_name)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\cmd.py", line 313, in run_commandself.distribution.run_command(command)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "C:\Users\JMD\.conda\envs\randlanet\lib\site-packages\Cython\Distutils\old_build_ext.py", line 186, in run_build_ext.build_ext.run(self)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\command\build_ext.py", line 308, in runforce=self.force)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\ccompiler.py", line 1031, in new_compilerreturn klass(None, dry_run, force)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\cygwinccompiler.py", line 285, in __init__CygwinCCompiler.__init__ (self, verbose, dry_run, force)File "C:\Users\JMD\.conda\envs\randlanet\lib\distutils\cygwinccompiler.py", line 129, in __init__if self.ld_version >= "2.10.90":
TypeError: unorderable types: NoneType() >= str()

解决：conda install mingw

• LINK : fatal error LNK1158: 无法运行“rc.exe”

  原因是link.exe文件无法找到rc.exe和rcdll.dll文件解决方法：
  1.找到rc.exe和rcdll.dll文件，在你对应的SDK版本文件夹下
  如C:\Program Files (x86)\Windows Kits\10\bin\10.0.17763.0\x862.找到运行的link.exe文件所在目录
  C:\Program Files\Microsoft Visual Studio\2022\Professional\VC\Tools\MSVC\14.35.32215\bin\Hostx86\x643、将rc.exe和rcdll.dll文件直接复制到link.exe文件所在目录
  再次运行python setup.py