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django 一些问题

发布时间:2020-07-23 15:56:10 阅读:3142 作者:1350368559 栏目:开发技术
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[root@133 django]# django-admin.py 
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
ImportErrorNo module named site

解决办法:

vim /etc/profile
export PYTHONHOME=/opt/amos/python2.7
export PYTHONPATH=$PYTHONHOME:$PYTHONHOME/lib/python2.7:$PYTHONHOME/lib:$PYTHONHOME/lib/python2.7/site-packages
export PATH=$PATH:$PYTHONHOME:$PYTHONPAT


[root@133 django]# django-admin.py startproject mysite
[root@133 django]# cd mysite/
[root@133 mysite]# ll
总用量 8
-rwxr-xr-x 1 root root  249 12月 31 19:38 manage.py
drwxr-xr-x 2 root root 4096 12月 31 19:38 mysite
[root@133 mysite]# python manage.py runserver
Traceback (most recent call last):
  File "manage.py", line 10in <module>
    execute_from_command_line(sys.argv)
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 338in execute_from_command_line
    utility.execute()
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 312in execute
    django.setup()
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/__init__.py", line 18in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/apps/registry.py", line 108in populate
    app_config.import_models(all_models)
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/apps/config.py", line 198in import_models
    self.models_module = import_module(models_module_name)
  File "/opt/amos/python2.7/lib/python2.7/importlib/__init__.py", line 37in import_module
    __import__(name)
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/contrib/auth/models.py", line 41in <module>
    class Permission(models.Model):
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/db/models/base.py", line 139in __new__
    new_class.add_to_class('_meta', Options(meta, **kwargs))
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/db/models/base.py", line 324in add_to_class
    value.contribute_to_class(cls, name)
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/db/models/options.py", line 250in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/db/__init__.py", line 36in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/db/utils.py", line 240in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/db/utils.py", line 111in load_backend
    return import_module('%s.base' % backend_name)
  File "/opt/amos/python2.7/lib/python2.7/importlib/__init__.py", line 37in import_module
    __import__(name)
  File "/opt/amos/python2.7/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py", line 36in <module>
    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


[root@133 sqlite3-99.0]# pip install libmysqlclient-dev
Collecting install
/opt/amos/python2.7/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning.
  SNIMissingWarning
/opt/amos/python2.7/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Could not find a version that satisfies the requirement install (from versions: )
No matching distribution found for install

根本解决办法:  

[root@133 ~]# yum install -y sqlite   sqlite-devel
然后重新编译安装python
wget https://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz
tar -zxvf Python-2.7.3.tgz
./configure --prefix=/opt/amos/lib/python2.7 --with-openssl
make
make install
[root@133  ]# ipython
In [3]: import sqlite3

In [4]: 


可能还需要安装的一些包:

需要安装sqlite-deve,pyOpenSSL,ndg-httpsclient

[root@133 ~]# yum install -y python-devel

[root@133 tmp]# pip install pysqlite
[root@133 sqlite3-99.0]# pip install pyopenssl ndg-httpsclient pyasn1
  InsecurePlatformWarning
  Downloading pyOpenSSL-16.2.0-py2.py3-none-any.whl (43kB)
    100% |████████████████████████████████| 51kB 114kB/s 
Collecting ndg-httpsclient
  Downloading ndg_httpsclient-0.4.2.tar.gz
  Building wheels for collected packages: ndg-httpsclient
  Running setup.py bdist_wheel for ndg-httpsclient ... done
  Stored in directory: /root/.cache/pip/wheels/44/6b/b1/eef816d523c0aa93f350fd2a78d74769e010e2f26623921b76
Successfully built ndg-httpsclient
Installing collected packages: pyopenssl, ndg-httpsclient
Successfully installed ndg-httpsclient-0.4.2 pyopenssl-16.2.0


[root@133 ~]# pip list
pyOpenSSL (0.13.1)
Django (1.4.21)

测试:http://112.65.140.133:8000

[root@133 mysite]# python manage.py runserver 112.65.140.133:8000
Validating models...

0 errors found
Django version 1.4.21using settings 'mysite.settings'
Development server is running at http://112.65.140.133:8000/
Quit the server with CONTROL-C.
[01/Jan/2017 10:14:24"GET / HTTP/1.1" 404 1899


[01/Jan/2017 10:14:40"GET / HTTP/1.1" 404 1899
[01/Jan/2017 11:31:24"HEAD / HTTP/1.1" 404 0
[01/Jan/2017 11:31:27"GET / HTTP/1.1" 404 1899

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