在 EC2 实例中安装 psycopg2 的问题

Question

我一直在尝试安装包hgvs，它需要 psycopg2 才能正常工作。使用pip安装运行顺利，直到出现以下错误：

/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libpq.a(fe-connect.o): unrecognized relocation (0x2a) in section `.text'

/usr/bin/ld: final link failed: Bad value

collect2: error: ld returned 1 exit status

error: command 'x86_64-linux-gnu-gcc' failed with exit status 1


----------------------------------------
Command /usr/bin/python -c "import setuptools;__file__='/tmp/pip-build-ubuntu/psycopg2/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-rh6BEQ-record/install-record.txt --single-version-externally-managed failed with error code 1 in /tmp/pip-build-ubuntu/psycopg2

通过安装最新版本（2.7.4 和 9.5.3）的 python-dev 和 libpq-dev 解决了类似的错误。 我不知道这会产生多大的影响，但是在运行 sudo apt-get install libpq-dev 后，我得到：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
libpq-dev is already the newest version (9.5.3-1).
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 apt-utils : Depends: libdb5.3 but it is not installable
 libapt-pkg5.0 : Breaks: libapt-inst1.5 (< 0.9.9~) but 0.9.7.7ubuntu6 is to be installed
 libc-bin : Depends: libc6 (< 2.18) but 2.21-7 is to be installed
 libc-dev-bin : Depends: libc6 (< 2.18) but 2.21-7 is to be installed
 libc6 : Breaks: libtirpc1 (< 0.2.3) but 0.2.2-5build1 is to be installed
         Breaks: locales (< 2.21) but 2.13+git20120306-9 is to be installed
 libc6-dev : Depends: libc6 (= 2.17-0ubuntu5.1) but 2.21-7 is to be installed
 libpq-dev : Depends: libpq5 (= 9.5.3-1) but it is not installable
 libstdc++6 : Depends: gcc-5-base (= 5.3.1-7) but it is not installable
          Breaks: python-scipy (<= 0.14.1-1) but 0.11.0+dfsg1-1ubuntu2 is to be installed
          Breaks: python3-scipy (<= 0.14.1-1) but 0.11.0+dfsg1-1ubuntu2 is to be installed
 E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

不幸的是，我发现的类似问题得到了神奇的单行回答，解决了一些问题。这些都没有奏效，更不用说解释问题的根本原因了。如果有人可以提供帮助，将不胜感激。

Answer 1

使用以下命令就可以了

sudo apt-get update
sudo apt-get install -y build-essential
sudo apt-get install -y python3.4-dev
sudo apt-get install -y libpq-dev

pip3 install psycopg2