在根据《Python3网络爬虫开发实战》中的1.6.1
ps:我的环境:win10;anaconda(Python3.6 )
在进行flask的安装时,陷入困境
执行代码:
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello():
return 'Hello World!'
if __name__ == '__main__':
app.run()
报如下错:
Traceback (most recent call last):
File "<ipython-input-2-16e30b4b66d7>", line 2, in <module>
app.run()
File "D:\Software\anaconda\lib\site-packages\flask\app.py", line 938, in run
cli.show_server_banner(self.env, self.debug, self.name, False)
File "D:\Software\anaconda\lib\site-packages\flask\cli.py", line 629, in show_server_banner
click.echo(message)
File "D:\Software\anaconda\lib\site-packages\click\utils.py", line 259, in echo
file.write(message)
UnsupportedOperation: not writable
显示无法写入,但百度了一直没找到何处出问题
试过重新安装anaconda,也试过重装flask,click
求助各位大神看看怎么回事,谢谢谢谢谢谢