ValueError: invalid version number '2.20.51.20100613'
我安装pycrypto时遇到了问题。尝试使用包管理器：pip和easy_install，但都不起作用。尝试通过"python setup.py install"手动安装，但出现与上述相同的错误。
我按照这里的说明进行操作，安装了"mingW" gcc、g++和msys-base（MSYS shell环境），但在安装pycrypto时卡住了。
经过几天的尝试，我仍然不确定该怎么做。
以下是错误的完整输出：
C:\Users\Denz\Desktop>pip install pycrypto
正在下载/安装 pycrypto
运行 setup.py egg_info 来为 package pycrypto 获取信息
安装收集到的包: pycrypto
运行 setup.py install 安装包 pycrypto
出现错误：
File "", line 1, in ?
File "C:\Users\Denz\Desktop\build\pycrypto\setup.py", line 340, in ?
core.setup(**kw)
File "C:\Python24\lib\distutils\core.py", line 149, in setup
dist.run_commands()
File "C:\Python24\lib\distutils\dist.py", line 946, in run_commands
self.run_command(cmd)
File "C:\Python24\lib\distutils\dist.py", line 966, in run_command
cmd_obj.run()
File "c:\python24\lib\site-packages\distribute-0.6.14-py2.4.egg\setuptools
\command\install.py", line 53, in run
return _install.run(self)
File "C:\Python24\lib\distutils\command\install.py", line 506, in run
self.run_command('build')
File "C:\Python24\lib\distutils\cmd.py", line 333, in run_command
self.distribution.run_command(command)
File "C:\Python24\lib\distutils\dist.py", line 966, in run_command
cmd_obj.run()
File "C:\Python24\lib\distutils\command\build.py", line 112, in run
self.run_command(cmd_name)
File "C:\Python24\lib\distutils\cmd.py", line 333, in run_command
self.distribution.run_command(command)
File "C:\Python24\lib\distutils\dist.py", line 966, in run_command
cmd_obj.run()
File "C:\Python24\lib\distutils\command\build_ext.py", line 253, in run
force=self.force)
File "C:\Python24\lib\distutils\ccompiler.py", line 1177, in new_compiler
return klass (None, dry_run, force)
File "C:\Python24\lib\distutils\cygwinccompiler.py", line 292, in init
CygwinCCompiler.__init__ (self, verbose, dry_run, force)在文件"C:\Python24\lib\distutils\cygwinccompiler.py"的第83行中被调用，其中self.gcc_version，self.ld_version和self.dllwrap_version被赋值。在文件"C:\Python24\lib\distutils\cygwinccompiler.py"的第424行中，ld_version被定义为StrictVersion(result.group(1))。然而，版本号'2.20.51.20100613'无效，导致了ValueError异常。