爲什麼PostgreSQL不能在Python中工作？

Question

root@user:~# pip install psycopg2 
Requirement already satisfied (use --upgrade to upgrade): psycopg2 in /usr/local/lib/python2.7/dist-packages 

爲什麼PostgreSQL不能在python中工作？

root@user:~$ python 
Python 2.7.8 (default, Oct 20 2014, 15:05:29) 
[GCC 4.9.1] on linux2 
Type "help", "copyright", "credits" or "license" for more information. 
>>> import postgresql 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
ImportError: No module named postgresql 

Answer 1

該模塊被稱爲psycopg2，導入它，而不是postgresql：

import psycopg2 

演示：

>>> import psycopg2 
>>> psycopg2.__version__ 
'2.5.4 (dt dec pq3 ext)' 

---

有雖然PostgreSQL的純Python特定python3驅動程序稱爲py-postgresql。你可能有混合/提到它：

$ python3 
Python 3.4.0 (default, Apr 3 2014, 20:36:56) 
>>> import postgresql 
>>> postgresql.version 
'1.1.0' 

Answer 2

你應該導入psycopg2而不是postgresql。