当我在服务器上运行flask项目时,出现以下错误:
Traceback (most recent call last):
File "File.py", line 1, in <module>
from flask import Flask, request
ImportError: No module named 'flask'
但是我已经安装了烧瓶!
$sudo pip install flask
Requirement already satisfied: flask in /usr/local/lib/python2.7/dist-packages
Requirement already satisfied: itsdangerous>=0.21 in /usr/local/lib/python2.7/dist-packages (from flask)
Requirement already satisfied: click>=2.0 in /usr/local/lib/python2.7/dist-packages (from flask)
Requirement already satisfied: Werkzeug>=0.7 in /usr/local/lib/python2.7/dist-packages (from flask)
Requirement already satisfied: Jinja2>=2.4 in /usr/local/lib/python2.7/dist-packages (from flask)
Requirement already satisfied: MarkupSafe>=0.23 in /usr/local/lib/python2.7/dist-packages (from Jinja2>=2.4->flask)
这真让我抓狂。我尝试了其他SO答案提出的建议,包括使用venv,但是它们都会产生相同的错误。有人有建议吗?
$ which python
/usr/bin/python
$ which python3
/usr/bin/python3
我正在运行python 3.5.2
我正在运行python 3.5.2
文字上说,Flask没有安装在那里。
Requirement already satisfied: flask in /usr/local/lib/python2.7/dist-packages
如果您使用的是此文件夹,则它也是系统Python,而不是virtualenv。您可以将virtualenv设置为使用系统安装的软件包,但同样,该路径不是Python3。
根本问题是在不同的用户帐户下使用sudo执行的pip
您可以使用Python2,也可以使用or进行安装pip3
,python3 -m pip
而您不需要sudo
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我来说两句