在Mac上使用Python2.6安装psycopg2

Question

我刚开始学习Python，现在在用Python2.6。我正在按照Python网站上的教程进行学习。我的问题是，当我试着按照这里的说明操作时：

http://py-psycopg.darwinports.com/

我遇到了类似这样的情况...

sudo port install py-psycopg
... bunch of errors here...
Error: The following dependencies failed to build: py-mx python24

我在使用MacOS X 10.4。

我该怎么才能让它正常工作呢？

任何回复我都会非常感激。

更新：

在运行下面的代码后，我得到了以下错误：

$ sudo port install py26-psycopg2
Warning: Skipping upgrade since openssl 0.9.8k_0 >= openssl 0.9.8k_0, even though installed variants "" do not match "+darwin". Use 'upgrade --enforce-variants' to switch to the requested variants.
    Warning: Skipping upgrade since readline 6.0.000_1 >= readline 6.0.000_1, even though installed variants "" do not match "+darwin". Use 'upgrade --enforce-variants' to switch to the requested variants.
    --->  Computing dependencies for py26-psycopg2
    --->  Building python26
    Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_lang_python26/work/Python-2.6.2" && /usr/bin/make all MAKE="/usr/bin/make CC=/usr/bin/gcc-4.0" " returned error 2
    Command output: /usr/bin/install -c -d -m 755 Python.framework/Versions/2.6
    if test ""; then \
            /usr/bin/gcc-4.0 -o Python.framework/Versions/2.6/Python  -dynamiclib \
                    -isysroot "" \
                    -all_load libpython2.6.a -Wl,-single_module \
                    -install_name /opt/local/Library/Frameworks/Python.framework/Versions/2.6/Python \
                    -compatibility_version 2.6 \
                    -current_version 2.6; \
            else \
            /usr/bin/libtool -o Python.framework/Versions/2.6/Python -dynamic  libpython2.6.a \
                     -lSystem -lSystemStubs -install_name /opt/local/Library/Frameworks/Python.framework/Versions/2.6/Python -compatibility_version 2.6 -current_version 2.6 ;\
    fi
    ld64 failed: in libpython2.6.a(__.SYMDEF), not a valid ppc64 mach-o file
    /usr/bin/libtool: internal link edit command failed
    make: *** [Python.framework/Versions/2.6/Python] Error 1

    Error: The following dependencies failed to build: python26
    Error: Status 1 encountered during processing.

顺便说一下，我安装的Python是从Python网站下载的dmg文件。

谢谢，

Wenbert

Answer 1

我在10.4的Mac上安装psycopg2时也遇到了问题。我是通过dmg文件安装的Python和Postgres，而用sudo easy_install psycopg2命令时出现了一个我现在记不起来的错误。对我来说，有一个简单的解决办法：

PATH=$PATH:/Library/PostgreSQL/8.3/bin/ sudo easy_install psycopg2

这个方法我是在http://blog.jonypawks.net/2008/06/20/installing-psycopg2-on-os-x/上找到的。

Answer 2

也许你需要看看这个适用于Python 2.6的版本？

Answer 3

如果你在用Python 2.6的话，其实你需要安装的是 py26-psycopg2。

$ sudo port install py26-psycopg2

在MacPorts中，py-* 这些包是用Python 2.4构建的，py25-* 是用Python 2.5构建的，而 py26-* 则是用Python 2.6构建的。