在过去的几个月里，我一直在使用 SQLite 作为我的数据库，同时学习 django 和建立一个网站。随着我越来越接近生产，我终于决定是时候切换到 PostgreSQL 了。我被困了好几天，一个接一个地追查错误，基本上查看了所有其他帖子并试图让它工作，但我仍然没有任何运气。最近，我尝试关注http://web.archive.org/web/20101221084639/http://nukeit.org/compile-python-2-7-packages-with-visual-studio-2010-express/但我我仍然收到错误。运行 pip install psycopg2 时的最新回溯如下：
Downloading/unpacking psycopg2
Running setup.py egg_info for package psycopg2
no previously-included directories found matching 'doc\src\_build'
Installing collected packages: psycopg2
Running setup.py install for psycopg2
building 'psycopg2._psycopg' extension
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Documents and Settings\user\projects\xLFTV\lftv\build\psycopg2\setup.py", line 557, in <module>
ext_modules=ext)
File "C:\Python27\lib\distutils\core.py", line 152, in setup
dist.run_commands()
File "C:\Python27\lib\distutils\dist.py", line 953, in run_commands
self.run_command(cmd)
File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\setuptools\command\install.py", line 53, in run
return _install.run(self)
File "C:\Python27\lib\distutils\command\install.py", line 563, in run
self.run_command('build')
File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Python27\lib\distutils\command\build.py", line 127, in run
self.run_command(cmd_name)
File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Python27\lib\distutils\command\build_ext.py", line 339, in run
self.build_extensions()
File "C:\Python27\lib\distutils\command\build_ext.py", line 448, in build_extensions
self.build_extension(ext)
File "C:\Documents and Settings\user\projects\xLFTV\lftv\build\psycopg2\setup.py", line 275, in build_extension
build_ext.build_extension(self, extension)
File "C:\Python27\lib\distutils\command\build_ext.py", line 498, in build_extension
depends=ext.depends)
File "C:\Python27\lib\distutils\msvc9compiler.py", line 474, in compile
self.initialize()
File "C:\Python27\lib\distutils\msvc9compiler.py", line 384, in initialize
vc_env = query_vcvarsall(VERSION, plat_spec)
File "C:\Python27\lib\distutils\msvc9compiler.py", line 300, in query_vcvarsall
raise ValueError(str(list(result.keys())))
ValueError: [u'path']
Complete output from command C:\Python27\python.exe -c "import setuptools;__file__='C:\\Documents and Settings\\user
\\projects\\xLFTV\\lftv\\build\\psycopg2\\setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__,
'exec'))" install --single-version-externally-managed --record c:\docume~1\user\locals~1\temp\pip-v_thso-record\install-
record.txt:
running install
running build
running build_py
running build_ext
building 'psycopg2._psycopg' extension
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Documents and Settings\user\projects\xLFTV\lftv\build\psycopg2\setup.py", line 557, in <module>
ext_modules=ext)
File "C:\Python27\lib\distutils\core.py", line 152, in setup
dist.run_commands()
File "C:\Python27\lib\distutils\dist.py", line 953, in run_commands
self.run_command(cmd)
File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\setuptools\command\install.py", line 53, in run
return _install.run(self)
File "C:\Python27\lib\distutils\command\install.py", line 563, in run
self.run_command('build')
File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Python27\lib\distutils\command\build.py", line 127, in run
self.run_command(cmd_name)
File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Python27\lib\distutils\command\build_ext.py", line 339, in run
self.build_extensions()
File "C:\Python27\lib\distutils\command\build_ext.py", line 448, in build_extensions
self.build_extension(ext)
File "C:\Documents and Settings\user\projects\xLFTV\lftv\build\psycopg2\setup.py", line 275, in build_extension
build_ext.build_extension(self, extension)
File "C:\Python27\lib\distutils\command\build_ext.py", line 498, in build_extension
depends=ext.depends)
File "C:\Python27\lib\distutils\msvc9compiler.py", line 474, in compile
self.initialize()
File "C:\Python27\lib\distutils\msvc9compiler.py", line 384, in initialize
vc_env = query_vcvarsall(VERSION, plat_spec)
File "C:\Python27\lib\distutils\msvc9compiler.py", line 300, in query_vcvarsall
raise ValueError(str(list(result.keys())))
ValueError: [u'path']
对不起，如果它有点乱。在发布之前，我尝试尽可能多地清理它。我对编程很陌生，我完全不知道我应该尝试什么。任何建议将不胜感激。在我的过程中，我已经看到了 3 条其他错误消息，并且不得不进行其他几次下载以使其正常工作。我对任何解决方案持开放态度。
提前致谢。