Python Can'；t在virtualenv内安装mongoengine

当我尝试在virtualenv中安装mongoengine时，我遇到了以下问题：

Requirement already satisfied (use --upgrade to upgrade): flask-mongoengine in ./lib/python2.7/site-packages
Requirement already satisfied (use --upgrade to upgrade): Flask>=0.8 in ./lib/python2.7/site-packages (from flask-mongoengine)
Downloading/unpacking mongoengine>=0.7.10 (from flask-mongoengine)
  Running setup.py (path:/var/www/msgapp/backend/build/mongoengine/setup.py) egg_info for package mongoengine
    0.8.7

    no previously-included directories found matching 'docs/_build'
Downloading/unpacking flask-wtf (from flask-mongoengine)
  Running setup.py (path:/var/www/msgapp/backend/build/flask-wtf/setup.py) egg_info for package flask-wtf

    warning: no previously-included files matching '*.pyc' found under directory 'tests'
    warning: no previously-included files matching '*.pyc' found under directory 'tests'
    warning: no previously-included files matching '*.pyc' found under directory 'docs'
    warning: no previously-included files matching '*.pyo' found under directory 'docs'
    no previously-included directories found matching 'docs/_build'
    no previously-included directories found matching 'docs/_themes/.git'
Requirement already satisfied (use --upgrade to upgrade): Werkzeug>=0.7 in ./lib/python2.7/site-packages (from Flask>=0.8->flask-mongoengine)
Requirement already satisfied (use --upgrade to upgrade): Jinja2>=2.4 in ./lib/python2.7/site-packages (from Flask>=0.8->flask-mongoengine)
Requirement already satisfied (use --upgrade to upgrade): itsdangerous>=0.21 in ./lib/python2.7/site-packages (from Flask>=0.8->flask-mongoengine)
Requirement already satisfied (use --upgrade to upgrade): pymongo>=2.5 in ./lib/python2.7/site-packages (from mongoengine>=0.7.10->flask-mongoengine)
Requirement already satisfied (use --upgrade to upgrade): WTForms>=1.0.5,<2.0 in ./lib/python2.7/site-packages (from flask-wtf->flask-mongoengine)
Requirement already satisfied (use --upgrade to upgrade): markupsafe in ./lib/python2.7/site-packages (from Jinja2>=2.4->Flask>=0.8->flask-mongoengine)
Installing collected packages: mongoengine, flask-wtf
  Running setup.py install for mongoengine
    0.8.7

    no previously-included directories found matching 'docs/_build'
    error: could not delete '/var/www/msgapp/backend/lib/python2.7/site-packages/bson/json_util.py': Permission denied
    Complete output from command /var/www/msgapp/backend/bin/python2.7 -c "import setuptools, tokenize;__file__='/var/www/msgapp/backend/build/mongoengine/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-811vit-record/install-record.txt --single-version-externally-managed --compile --install-headers /var/www/msgapp/backend/include/site/python2.7:
    0.8.7

running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/common.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/document.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/context_managers.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/__init__.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/connection.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/errors.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/dereference.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/python_support.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/signals.py -> build/lib.linux-x86_64-2.7/mongoengine
copying mongoengine/fields.py -> build/lib.linux-x86_64-2.7/mongoengine
creating build/lib.linux-x86_64-2.7/bson
copying bson/json_util.py -> build/lib.linux-x86_64-2.7/bson
copying bson/objectid.py -> build/lib.linux-x86_64-2.7/bson
copying bson/py3compat.py -> build/lib.linux-x86_64-2.7/bson
copying bson/tz_util.py -> build/lib.linux-x86_64-2.7/bson
copying bson/max_key.py -> build/lib.linux-x86_64-2.7/bson
copying bson/binary.py -> build/lib.linux-x86_64-2.7/bson
copying bson/__init__.py -> build/lib.linux-x86_64-2.7/bson
copying bson/code.py -> build/lib.linux-x86_64-2.7/bson
copying bson/son.py -> build/lib.linux-x86_64-2.7/bson
copying bson/errors.py -> build/lib.linux-x86_64-2.7/bson
copying bson/timestamp.py -> build/lib.linux-x86_64-2.7/bson
copying bson/regex.py -> build/lib.linux-x86_64-2.7/bson
copying bson/dbref.py -> build/lib.linux-x86_64-2.7/bson
copying bson/min_key.py -> build/lib.linux-x86_64-2.7/bson
creating build/lib.linux-x86_64-2.7/mongoengine/base
copying mongoengine/base/metaclasses.py -> build/lib.linux-x86_64-2.7/mongoengine/base
copying mongoengine/base/common.py -> build/lib.linux-x86_64-2.7/mongoengine/base
copying mongoengine/base/document.py -> build/lib.linux-x86_64-2.7/mongoengine/base
copying mongoengine/base/__init__.py -> build/lib.linux-x86_64-2.7/mongoengine/base
copying mongoengine/base/datastructures.py -> build/lib.linux-x86_64-2.7/mongoengine/base
copying mongoengine/base/fields.py -> build/lib.linux-x86_64-2.7/mongoengine/base
creating build/lib.linux-x86_64-2.7/mongoengine/django
copying mongoengine/django/shortcuts.py -> build/lib.linux-x86_64-2.7/mongoengine/django
copying mongoengine/django/sessions.py -> build/lib.linux-x86_64-2.7/mongoengine/django
copying mongoengine/django/tests.py -> build/lib.linux-x86_64-2.7/mongoengine/django
copying mongoengine/django/storage.py -> build/lib.linux-x86_64-2.7/mongoengine/django
copying mongoengine/django/__init__.py -> build/lib.linux-x86_64-2.7/mongoengine/django
copying mongoengine/django/auth.py -> build/lib.linux-x86_64-2.7/mongoengine/django
copying mongoengine/django/utils.py -> build/lib.linux-x86_64-2.7/mongoengine/django
creating build/lib.linux-x86_64-2.7/mongoengine/queryset
copying mongoengine/queryset/queryset.py -> build/lib.linux-x86_64-2.7/mongoengine/queryset
copying mongoengine/queryset/base.py -> build/lib.linux-x86_64-2.7/mongoengine/queryset
copying mongoengine/queryset/visitor.py -> build/lib.linux-x86_64-2.7/mongoengine/querset
copying mongoengine/queryset/__init__.py -> build/lib.linux-x86_64-2.7/mongoengine/queryset
copying mongoengine/queryset/field_list.py -> build/lib.linux-x86_64-2.7/mongoengine/queryset
copying mongoengine/queryset/transform.py -> build/lib.linux-x86_64-2.7/mongoengine/queryset
copying mongoengine/queryset/manager.py -> build/lib.linux-x86_64-2.7/mongoengine/queryset
creating build/lib.linux-x86_64-2.7/mongoengine/django/mongo_auth
copying mongoengine/django/mongo_auth/__init__.py -> build/lib.linux-x86_64-2.7/mongoengine/django/mongo_auth
copying mongoengine/django/mongo_auth/models.py -> build/lib.linux-x86_64-2.7/mongoengine/django/mongo_auth

running egg_info

writing requirements to mongoengine.egg-info/requires.txt

writing mongoengine.egg-info/PKG-INFO

writing top-level names to mongoengine.egg-info/top_level.txt

writing dependency_links to mongoengine.egg-info/dependency_links.txt

warning: manifest_maker: standard file '-c' not found



reading manifest file 'mongoengine.egg-info/SOURCES.txt'

reading manifest template 'MANIFEST.in'

no previously-included directories found matching 'docs/_build'

writing manifest file 'mongoengine.egg-info/SOURCES.txt'

running install_lib

copying build/lib.linux-x86_64-2.7/mongoengine/base/metaclasses.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/base

copying build/lib.linux-x86_64-2.7/mongoengine/base/common.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/base

copying build/lib.linux-x86_64-2.7/mongoengine/base/document.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/base

copying build/lib.linux-x86_64-2.7/mongoengine/base/__init__.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/base

copying build/lib.linux-x86_64-2.7/mongoengine/base/datastructures.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/base

copying build/lib.linux-x86_64-2.7/mongoengine/base/fields.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/base

copying build/lib.linux-x86_64-2.7/mongoengine/django/mongo_auth/__init__.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django/mongo_auth

copying build/lib.linux-x86_64-2.7/mongoengine/django/mongo_auth/models.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django/mongo_auth

copying build/lib.linux-x86_64-2.7/mongoengine/django/shortcuts.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django

copying build/lib.linux-x86_64-2.7/mongoengine/django/sessions.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django

copying build/lib.linux-x86_64-2.7/mongoengine/django/tests.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django

copying build/lib.linux-x86_64-2.7/mongoengine/django/storage.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django

copying build/lib.linux-x86_64-2.7/mongoengine/django/__init__.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django

copying build/lib.linux-x86_64-2.7/mongoengine/django/auth.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django

copying build/lib.linux-x86_64-2.7/mongoengine/django/utils.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/django

copying build/lib.linux-x86_64-2.7/mongoengine/common.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/document.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/queryset/queryset.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/queryset

copying build/lib.linux-x86_64-2.7/mongoengine/queryset/base.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/queryset

copying build/lib.linux-x86_64-2.7/mongoengine/queryset/visitor.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/queryset

copying build/lib.linux-x86_64-2.7/mongoengine/queryset/__init__.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/queryset

copying build/lib.linux-x86_64-2.7/mongoengine/queryset/field_list.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/queryset

copying build/lib.linux-x86_64-2.7/mongoengine/queryset/transform.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/queryset

copying build/lib.linux-x86_64-2.7/mongoengine/queryset/manager.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine/queryset

copying build/lib.linux-x86_64-2.7/mongoengine/context_managers.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/__init__.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/connection.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/errors.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/dereference.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/python_support.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/signals.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/mongoengine/fields.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/mongoengine

copying build/lib.linux-x86_64-2.7/bson/json_util.py -> /var/www/msgapp/backend/lib/python2.7/site-packages/bson

error: could not delete '/var/www/msgapp/backend/lib/python2.7/site-packages/bson/json_util.py': Permission denied

----------------------------------------
Cleaning up...
Command /var/www/msgapp/backend/bin/python2.7 -c "import setuptools, tokenize;__file__='/var/www/msgapp/backend/build/mongoengine/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-811vit-record/install-record.txt --single-version-externally-managed --compile --install-headers /var/www/msgapp/backend/include/site/python2.7 failed with error code 1 in /var/www/msgapp/backend/build/mongoengine
Storing debug log for failure in /home/www/.pip/pip.log

已满足要求（使用--升级到升级）：在./lib/python2.7/site-packages中烧瓶mongoengine
已满足要求（使用-升级至升级）：Flask>=0.8 in./lib/python2.7/site-packages（来自Flask mongoengine）
下载/解包mongoengine>=0.7.10（来自flask mongoengine）
运行setup.py（路径：/var/www/msgapp/backend/build/mongoengine/setup.py）包mongoengine的egg\u信息
0.8.7
未找到与“docs/\u build”匹配的以前包含的目录
下载/打开烧瓶wtf（从烧瓶mongoengine）
正在运行setup.py（路径：/var/www/msgapp/backend/build/flask wtf/setup.py）package flask wtf的egg\u信息
警告：在“tests”目录下找不到以前包含的与“*.pyc”匹配的文件
警告：在“tests”目录下找不到以前包含的与“*.pyc”匹配的文件
警告：在目录“docs”下找不到以前包含的与“*.pyc”匹配的文件
警告：在目录“docs”下找不到以前包含的与“*.pyo”匹配的文件
未找到与“docs/\u build”匹配的以前包含的目录
未找到与“docs/\u themes/.git”匹配的以前包含的目录
已满足要求（使用--升级到升级）：Werkzeug>=0.7英寸/lib/python2.7/site-packages（来自Flask>=0.8->Flask mongoengine）
已满足要求（使用--升级到升级）：Jinja2>=2.4 in./lib/python2.7/site-packages（来自Flask>=0.8->Flask mongoengine）
已满足要求（使用--升级到升级）：ITShazard>=0.21 in./lib/python2.7/site-packages（来自Flask>=0.8->Flask mongoengine）
已满足要求（使用--升级到升级）：pymongo>=2.5 in./lib/python2.7/site-packages（来自mongoengine>=0.7.10->flask mongoengine）
已满足要求（使用--升级到升级）：WTForms>=1.0.5，flask mongoengine）
已满足要求（使用--升级到升级）：在./lib/python2.7/site-packages中标记安全（来自Jinja2>=2.4->Flask>=0.8->Flask mongoengine）
安装收集的软件包：mongoengine、flask wtf
正在为mongoengine运行setup.py安装
0.8.7
未找到与“docs/\u build”匹配的以前包含的目录
错误：无法删除“/var/www/msgapp/backend/lib/python2.7/site packages/bson/json_util.py”：权限被拒绝
从命令/var/www/msgapp/backend/bin/python2.7-c“导入setuptools，tokenize；uuu文件uuu=”/var/www/msgapp/backend/build/mongoengine/setup.py'；exec（编译（getattr（tokenize，'open'，open）（uu文件uu）.read（）.replace（'\r\n'，'n'），u文件u，'exec'））”安装--record/tmp/pip-811vit-record/install-record.txt--外部管理的单一版本--编译--install headers/var/www/msgapp/backend/include/site/python2.7：
0.8.7
正在运行的安装
运行构建
运行build\u py
创建构建
创建build/lib.linux-x86_64-2.7
创建build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/common.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/document.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/context_managers.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/_init__.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/connection.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/errors.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/dereference.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/python_support.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/signals.py->build/lib.linux-x86_64-2.7/mongoengine
复制mongoengine/fields.py->build/lib.linux-x86_64-2.7/mongoengine
创建build/lib.linux-x86_64-2.7/bson
正在复制bson/json_util.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/objectid.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/py3compat.py->build/lib.linux-x86_64-2.7/bson
复制bson/tz_util.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/max_key.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/binary.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/uuu init_uuuu.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/code.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/son.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/errors.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/timestamp.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/regex.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/dbref.py->build/lib.linux-x86_64-2.7/bson
正在复制bson/min_key.py->build/lib.linux-x86_64-2.7/bson
创建build/lib.linux-x86_64-2.7/mongoengine/base
复制mongoengine/base/metaclass.py->build/lib.linux-x86_64-2.7/mongoengine/base
复制mongoengine/base/common.py->build/lib.linux-x86_64-2.7/mongoengine/base
复制mongoengine/base/document.py->build/lib.linux-x86_64-2.7/mongoengine/base
正在复制mongoengine/base/_init__.py->build/lib.linux-x86_64-2.7/mongoengine/base
复制mongoengine/base/datastructures.py->build/lib.linux-x86_64-2.7/mongoengine/base
复制mongoengine/base/fields.py->build/lib.linux-x86_64-2.7/mongoengine/base
创建build/lib.linux-x86_64-2.7/mongoengine/django
复制mongoengine/django/shortcuts.py->build/lib.linux-x86_64-2.7/mongoengine/django
复制mongoengine/django/sessions.py->build/lib.linux-x86_64-2.7/mongoengine/django
复制mongoengine/django/tests.py->build/lib.linux-x86_64-2.7/mongoengine/django
复制mongoengine/django/storage.py->build/lib.linux-x86_64-2.7/mongoengine/django
正在复制mongoengine/django/_init__uu.py->build/lib.linux-x86_64-2.7/mongoengine/django
复制mongoengine/django/auth.py->build/lib.linux-x86_64-2.7/mongoengine/django
复制mongoengine/django/utils.py->build/lib.linux-x86_64-2.7/mongoengine/django
创建build/lib.linux-x86_64-2.7/mongoengine/queryset
复制mongoengine/queryset/queryset.py->build/lib.linux-x86_64-2.7/mongoengine/queryset
复制mongoengine/q