前言
Django 是Python常用的web框架，這裡使用CentOS 6.X 系列進行安裝，安裝完成後，在運行使用時出現錯誤，後面進行說明。
安裝與運行
由於Django目前只支持python 2.7以上的版本，這裡使用的CentOS 6.X系列默認是python 2.6版本。進行python版本的升級操作。
安裝命令如下：
[root@private django_dir]# python --version
Python 2.7.13
[root@private django_dir]# pip install django
Collecting django
Using cached Django-1.11.6-py2.py3-none-any.whl
Requirement already satisfied: pytz in /usr/local/lib/python2.7/site-packages (from django)
Installing collected packages: django
Successfully installed django-1.11.6
[root@private django_dir]#
安裝完成Django後，進行Django的使用，創建新項目：
[root@private django_dir]# django-admin startproject myblog
[root@private django_dir]# ls -d myblog/
myblog/
[root@private django_dir]# ll myblog/*
-rwxr-xr-x 1 root root 804 Oct 22 14:58 myblog/manage.py
myblog/myblog:
total 12
-rw-r--r-- 1 root root 0 Oct 22 14:58 __init__.py
-rw-r--r-- 1 root root 3096 Oct 22 14:58 settings.py
-rw-r--r-- 1 root root 763 Oct 22 14:58 urls.py
-rw-r--r-- 1 root root 390 Oct 22 14:58 wsgi.py
[root@private django_dir]#
在運行'python manage.py runserver'時，出現如下報錯：
[root@private blog]# python manage.py
Traceback (most recent call last):
File "manage.py", line 22, in
execute_from_command_line(sys.argv)
File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute
django.setup()
File "/usr/local/lib/python2.7/site-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models()
File "/usr/local/lib/python2.7/site-packages/django/apps/config.py", line 202, in import_models
self.models_module = import_module(models_module_name)
File "/usr/local/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/usr/local/lib/python2.7/site-packages/django/contrib/auth/models.py", line 4, in
from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
File "/usr/local/lib/python2.7/site-packages/django/contrib/auth/base_user.py", line 52, in
class AbstractBaseUser(models.Model):
File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 124, in __new__
new_class.add_to_class('_meta', Options(meta, app_label))
File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 325, in add_to_class
value.contribute_to_class(cls, name)
File "/usr/local/lib/python2.7/site-packages/django/db/models/options.py", line 214, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "/usr/local/lib/python2.7/site-packages/django/db/__init__.py", line 33, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/usr/local/lib/python2.7/site-packages/django/db/utils.py", line 211, in __getitem__
backend = load_backend(db['ENGINE'])
File "/usr/local/lib/python2.7/site-packages/django/db/utils.py", line 115, in load_backend
return import_module('%s.base' % backend_name)
File "/usr/local/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/usr/local/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py", line 35, in
raise ImproperlyConfigured("Error loading either pysqlite2 or sqlite3 modules (tried in that order): %s" % exc)
django.core.exceptions.ImproperlyConfigured: Error loading either pysqlite2 or sqlite3 modules (tried in that order): No module named _sqlite3
該報錯是由於Python的依賴包 sqlite-devel 導致的。修復方案為：
yum -y install sqlite-devel
然後重新進行./congure 和 make 、make install Python版本。再進行運行就可以了。
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