Question

我尝试安装烧瓶时尝试了每一个命令行。我已按照http://flask.pocoo.org/docs/installation/

的说明进行操作

sudo easy_install virtualenv之后：

Searching for virtualenv
Best match: virtualenv 1.11.6
Adding virtualenv 1.11.6 to easy-install.pth file
Installing virtualenv script to /usr/local/bin
Installing virtualenv-2.7 script to /usr/local/bin

Using /usr/local/lib/python2.7/dist-packages
Processing dependencies for virtualenv
Finished processing dependencies for virtualenv

在pip-install flask之后

：

Requirement already satisfied (use --upgrade to upgrade): flask in ./python2.7/dist-packages
Requirement already satisfied (use --upgrade to upgrade): Werkzeug>=0.7 in ./python2.7/dist-packages (from flask)
Requirement already satisfied (use --upgrade to upgrade): Jinja2>=2.4 in ./python2.7/dist-packages (from flask)
Requirement already satisfied (use --upgrade to upgrade): itsdangerous>=0.21 in ./python2.7/dist-packages (from flask)
Requirement already satisfied (use --upgrade to upgrade): markupsafe in ./python2.7/dist-packages (from Jinja2>=2.4->flask)
Cleaning up...

但是在. venv/bin/activate之后：

bash: venv/bin/activate: No such file or directory

我知道如何浏览终端并创建目录。我不确定如何处理此命令和/或激活virtualenv。我找不到这个目录，或者sudo / pip命令可能是针对我的驱动器上没有默认的目录？

我尝试使用flask运行python脚本，当然：

Traceback (most recent call last):
  File "testingflask.py", line 1, in <module>
    from flask import Flask
ImportError: No module named flask

这是脚本： testingflask.py

from flask import flask
app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello World!"

if __name__ == "__main__":
    app.run()

我也试过了apt-get install python-flask

Answer 1

你做过

吗？

$ mkdir myproject
$ cd myproject
$ virtualenv venv

步骤？（显然不是）

在任何情况下，你应该在激活virutualenv之后执行pip install Flask。否则它将安装在你的基础python安装中。

另外请注意，python区分大小写：

from flask import Flask
app = Flask(__name__)

Answer 2

你运行virtualenv venv了吗？我的意思是你的项目中有venv个文件夹吗？我猜你错过了这一步！

$ sudo easy_install virtualenv或sudo easy_install virtualenv
$ mkdir myproject
$ cd myproject
virtualenv venv

我按照这些步骤操作，venv中应该有一个myproject目录，$ . venv/bin/activate命令可以正常工作

Answer 3

还有一件事要尝试

了解存储site-packages的python路径
下载flask module并将其解压缩
复制解压缩的文件夹并将其粘贴到python包目录中（主要是 site-packages / dist-packages for me :/usr/lib/python2.7/dist-packages）[记住 root只能执行此操作

打开你的python shell

并检查"import flask"

知道您的库文件的位置：

In [1]: import sys In [2]: sys.path Out[2]: ['', '/usr/bin', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.7', '/usr/lib/python2.7/dist-packages/ubuntu-sso-client', '/usr/lib/python2.7/dist-packages/ubuntuone-client', '/usr/lib/python2.7/dist-packages/ubuntuone-control-panel', '/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol', '/usr/lib/python2.7/dist-packages/IPython/extensions']

安装烧瓶; python脚本仍然无法导入

3 个答案:

还有一件事要尝试

知道您的库文件的位置：