python - ImportError: No module named 'SocketServer' ?

Question

使用pycharm建立flask工程后无法运行默认的hello world！模板，出现的错误：

图片不太清晰，补发一份文字版；

C:\Users\jowu\virtualEnvironment\Scripts\python.exe C:/Users/jowu/Desktop/PyWeb/PyWeb.py
Traceback (most recent call last):
  File "C:\Users\jowu\AppData\Local\Programs\Python\Python36\lib\site-packages\werkzeug\serving.py", line 65, in <module>
    from SocketServer import ThreadingMixIn, ForkingMixIn
ImportError: No module named 'SocketServer'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/jowu/Desktop/PyWeb/PyWeb.py", line 12, in <module>
    app.run()
  File "C:\Users\jowu\AppData\Local\Programs\Python\Python36\lib\site-packages\flask\app.py", line 828, in run
    from werkzeug.serving import run_simple
  File "C:\Users\jowu\AppData\Local\Programs\Python\Python36\lib\site-packages\werkzeug\serving.py", line 68, in <module>
    from socketserver import ThreadingMixIn, ForkingMixIn
ImportError: cannot import name 'ForkingMixIn'

Process finished with exit code 1

---

python版本：3.6

pycharm 默认设置：

出现的问题是：ImportError: No module named 'SocketServer'

google之后发现可能是virtualenv没有配置好，但是尝试在Default setting中删除重新配置也还是出现同样的问题。ps.配置方法是根据pycharm文档来配置的。

以上，第一次提问，不到之处，还望海涵。望不吝赐教。

Answer 1

Pepijat dalam werkzeug.
https://github.com/pallets/we...
Ia tersedia selepas python36, gunakan python35.

Jawapan di bawah adalah salah, kerana ./Python36/lib/site-packages/werkzeug/serving.py ditulis seperti berikut:

try:
    from SocketServer import ThreadingMixIn, ForkingMixIn
    from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
except ImportError:
    from socketserver import ThreadingMixIn, ForkingMixIn
    from http.server import HTTPServer, BaseHTTPRequestHandler

Jadi tiada masalah kes.

Answer 2

Selepas Python 3, nama modul SocketServer ditukar kepada socketserver.
Ia ditulis dalam NOTA pada permulaan dokumen Python2.7:
SocketServer — Rangka kerja untuk pelayan rangkaian
Saya menggunakan Python 2.7, jadi saya belum mencubanya nama modul Cuba lagi nanti.

Answer 3

Untuk masalah sebegini, mula-mula masukkan virtualenv dan taip python terus pada baris arahan Selepas memasukkan, terus import SocketServer untuk melihat jika ia boleh diimport, mesti nama itu salah atau pakej hilang.