无法安装pycrypto
ValueError: invalid version number '2.20.51.20100613'
我在安装pycrypto的时候遇到了问题。我试过用包管理工具：pip和easy_install，但都不行。我还尝试通过“python setup.py install”手动安装，结果出现了和之前一样的错误。
我按照这里的说明操作，安装了“mingW” gcc、g++和msys-base（MSYS shell环境），但在安装pycrypto的时候卡住了。
经过几天的尝试，我现在真的不知道该怎么办了。
这是错误的完整输出：
C:\Users\Denz\Desktop>pip install pycrypto
Downloading/unpacking pycrypto
Running setup.py egg_info for package pycrypto
Installing collected packages: pycrypto
Running setup.py install for pycrypto
Traceback (most recent call last):
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)
File "C:\Python24\lib\distutils\cygwinccompiler.py", line 83, in __init__
self.gcc_version, self.ld_version, self.dllwrap_version = \
File "C:\Python24\lib\distutils\cygwinccompiler.py", line 424, in get_versions
ld_version = StrictVersion(result.group(1))
File "C:\Python24\lib\distutils\version.py", line 40, in __init__
self.parse(vstring)
File "C:\Python24\lib\distutils\version.py", line 107, in parse
raise ValueError, "invalid version number '%s'" % vstring
ValueError: invalid version number '2.20.51.20100613'