flask hello world程序中出错无法导入flask $python app.py 回溯(最近一次呼叫最后一次): 文件“app.py”,第1行,在 从烧瓶进口烧瓶 ImportError:无法从“FLASK”导入名称“FLASK”(/Users/kiran/anaconda3/lib/python3.7/site packages/FLASK/\uuuu init.py)
您错误地将flask hello world程序中出错无法导入flask $python app.py 回溯(最近一次呼叫最后一次): 文件“app.py”,第1行,在 从烧瓶进口烧瓶 ImportError:无法从“FLASK”导入名称“FLASK”(/Users/kiran/anaconda3/lib/python3.7/site packages/FLASK/\uuuu init.py),python,flask,Python,Flask,您错误地将烧瓶大写。应该是: $ python app.py Traceback (most recent call last): File "app.py", line 1, in <module> from flask import FLASK ImportError: cannot import name 'FLASK' from 'flask' (/Users/kiran/anaconda3/lib/python3.7/site-packages/flask/__
烧瓶
大写。应该是:
$ python app.py
Traceback (most recent call last):
File "app.py", line 1, in <module>
from flask import FLASK
ImportError: cannot import name 'FLASK' from 'flask' (/Users/kiran/anaconda3/lib/python3.7/site-packages/flask/__init__.py)
此处**FLASK*表示错误,而不是FLASK write FLASK
from flask import Flask
应该是
Flask
而不是Flask
。Python区分大小写。来自flask导入flask
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "Hello World!"
if __name__ == "__main__":
app.run()