如何在似乎没有gcc访问权限的虚拟环境中安装psycopg2？

Question

我正在一个虚拟环境中尝试安装psycopg2，但似乎我没有访问gcc的权限。

有没有办法在虚拟环境中启用gcc？如果没有，是否有其他不需要gcc的库可以与PostgreSQL一起使用？

我在A2hosting.com安装psycopg2时遇到了这个错误：

running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.4
creating build/lib.linux-x86_64-2.4/psycopg2
copying lib/errorcodes.py -> build/lib.linux-x86_64-2.4/psycopg2
copying lib/__init__.py -> build/lib.linux-x86_64-2.4/psycopg2
copying lib/extensions.py -> build/lib.linux-x86_64-2.4/psycopg2
copying lib/pool.py -> build/lib.linux-x86_64-2.4/psycopg2
copying lib/tz.py -> build/lib.linux-x86_64-2.4/psycopg2
copying lib/psycopg1.py -> build/lib.linux-x86_64-2.4/psycopg2
copying lib/extras.py -> build/lib.linux-x86_64-2.4/psycopg2
creating build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/types_extras.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/types_basic.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_psycopg2_dbapi20.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_dates.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/bugX000.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_copy.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_async.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_notify.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/extras_dictcursor.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_lobject.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_connection.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_green.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/bug_gc.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/dbapi20_tpc.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/__init__.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_quote.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/testutils.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/dbapi20.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_cursor.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_cancel.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/test_transaction.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
copying tests/testconfig.py -> build/lib.linux-x86_64-2.4/psycopg2/tests
running build_ext
building 'psycopg2._psycopg' extension
creating build/temp.linux-x86_64-2.4
creating build/temp.linux-x86_64-2.4/psycopg
gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fPIC -DPSYCOPG_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.4 (dt dec pq3 ext)" -DPG_VERSION_HEX=0x080309 -DPSYCOPG_EXTENSIONS=1 -DPSYCOPG_NEW_BOOLEAN=1 -DHAVE_PQFREEMEM=1 -I/usr/include/python2.4 -I. -I/usr/include -I/usr/include/pgsql/server -c psycopg/psycopgmodule.c -o build/temp.linux-x86_64-2.4/psycopg/psycopgmodule.o -Wdeclaration-after-statement
unable to execute gcc: Permission denied
error: command 'gcc' failed with exit status 1

更新：

我发现我尝试安装psycopg2的机器上没有PostgreSQL。这个网络托管公司在另一台服务器上安装了PostgreSQL。在这种情况下我该怎么办？

Answer 1

你不需要整个PostgreSQL数据库，其实你只需要PostgreSQL的客户端库和开发文件。你可以试着问一下你的主机提供商，让他们帮你安装这些东西。如果不行的话，你也可以在一个类似的系统上自己编译，然后手动把这个包复制过来。